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Edward R Atwill, PhD; MPVM

Title(s)Professor, School of Veterinary Medicine
SchoolUniversity of California, Davis
Phone530-754-2154
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    Collapse Research 
    Collapse Research Activities and Funding
    Western Center for Food Safety
    FDA U19FD004995Sep 15, 2013 - Aug 31, 2023
    Role: Principal Investigator
    FDA Western Center for Food Safety
    FDA U01FD003572Sep 20, 2008 - Jul 31, 2014
    Role: Principal Investigator

    Collapse Bibliographic 
    Collapse Publications
    Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Researchers can login to make corrections and additions, or contact us for help.
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    1. DAS J, Chase JA, Partyka ML, Atwill ER, Linke B. An Insight into Surface Topographical Parameters and Bacterial Adhesion: A Case Study of Listeria monocytogenes Scott A Attachment on 304 Stainless Steel. J Food Prot. 2020 Mar 01; 83(3):426-433. PMID: 32053830.
      View in: PubMed
    2. Adaska JM, Ekong PS, Clothier KA, Williams DR, Rossitto PV, Lehenbauer TW, Atwill ER, Li X, Aly SS. Bayesian estimation of diagnostic accuracy of fecal culture and PCR-based tests for the detection of Salmonella enterica in California cull dairy cattle. PeerJ. 2020; 8:e8310. PMID: 31988800.
      View in: PubMed
    3. Vandeleest JJ, Winkler SL, Beisner BA, Hannibal DL, Atwill ER, McCowan B. Sex differences in the impact of social status on hair cortisol concentrations in rhesus monkeys (Macaca mulatta). Am J Primatol. 2020 Jan; 82(1):e23086. PMID: 31876328.
      View in: PubMed
    4. Wei X, Hou S, Pan X, Xu C, Li J, Yu H, Chase J, Atwill ER, Li X, Chen K, Chen S. Microbiological Contamination of Strawberries from U-Pick Farms in Guangzhou, China. Int J Environ Res Public Health. 2019 12 05; 16(24). PMID: 31817316.
      View in: PubMed
    5. Kwangwook Kim, Yijie He, Xia Xiong, Amy Ehrlich, Xunde Li, Helen Raybould, Edward R. Atwill, Elizabeth A. Maga, Jens Jørgensen, Yanhong Liu. Dietary supplementation of Bacillus subtilis influenced intestinal health of weaned pigs experimentally infected with a pathogenic E. coli. Journal of Animal Science and Biotechnology. 2019 Dec 1; 10(1):52.
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    6. Kovanda L, Zhang W, Wei X, Luo J, Wu X, Atwill ER, Vaessen S, Li X, Liu Y. In Vitro Antimicrobial Activities of Organic Acids and Their Derivatives on Several Species of Gram-Negative and Gram-Positive Bacteria. Molecules. 2019 Oct 19; 24(20). PMID: 31635062.
      View in: PubMed
    7. Jeamsripong S, Chase JA, Jay-Russell MT, Buchanan RL, Atwill ER. Experimental In-Field Transfer and Survival of Escherichia coli from Animal Feces to Romaine Lettuce in Salinas Valley, California. Microorganisms. 2019 Sep 29; 7(10). PMID: 31569566.
      View in: PubMed
    8. Li X, Chase JA, Bond RF, Lor P, Fernandez K, Nguyen TH, Partyka ML, Thiptara A, Atwill ER. Microbiological safety of popular recreation swimming sites in Central California. Environ Monit Assess. 2019 Jun 22; 191(7):456. PMID: 31230187.
      View in: PubMed
    9. Jeamsripong S, Atwill ER. Modelling of Indicator Escherichia coli Contamination in Sentinel Oysters and Estuarine Water. Int J Environ Res Public Health. 2019 06 04; 16(11). PMID: 31167343.
      View in: PubMed
    10. Xunde Li, Kristopher A. Flores, Sheila Barry, Theresa A. Becchetti, Morgan Doran, Julie A. Finzel, Royce Larsen, David Lile, Neil McDougald, Tran Nguyen, Chengling Xiao, Edward R. Atwill. Statewide Cross-Sectional Survey of Cryptosporidium and Giardia in California Cow-Calf Herds. Rangeland Ecology & Management. 2019 May 1; 72(3):461-466.
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    11. Krishna N. Balasubramaniam, Brianne A. Beisner, Josephine A. Hubbard, Jessica J. Vandeleest, Edward R. Atwill, Brenda McCowan. Affiliation and disease risk: social networks mediate gut microbial transmission among rhesus macaques. Animal Behaviour. 2019 May 1; 151(Annual Review of Ecology and Systematics 5 1974):131-143.
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    12. Pascal R. Marty, Brianne Beisner, Stefano S.K. Kaburu, Krishna Balasubramaniam, Eliza Bliss-Moreau, Nadine Ruppert, Shahrul Anuar Mohd Sah, Ahmad Ismail, Malgorzata E. Arlet, Edward R. Atwill, Brenda McCowan. Time constraints imposed by anthropogenic environments alter social behaviour in longtailed macaques. Animal Behaviour. 2019 Apr 1; 150(Behaviour 49 3–4 1974):157-165.
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    13. Pereira R, Williams DR, Rossitto P, Adaska J, Okello E, Champagne J, Lehenbauer TW, Li X, Chase J, Nguyen T, Pires AFA, Atwill ER, Aly SS. Association between herd management practices and antimicrobial resistance in Salmonella spp. from cull dairy cattle in Central California. PeerJ. 2019; 7:e6546. PMID: 30923650.
      View in: PubMed
    14. Chase JA, Partyka ML, Bond RF, Atwill ER. Environmental inactivation and irrigation-mediated regrowth of Escherichia coli O157:H7 on romaine lettuce when inoculated in a fecal slurry matrix. PeerJ. 2019; 7:e6591. PMID: 30867998.
      View in: PubMed
    15. Kwangwook Kim, Amy Ehrlich, Vivian Perng, Jennifer A. Chase, Helen Raybould, Xunde Li, Edward R. Atwill, Rose Whelan, Adebayo Sokale, Yanhong Liu. Algae-derived ß-glucan enhanced gut health and immune responses of weaned pigs experimentally infected with a pathogenic E. coli. Animal Feed Science and Technology. 2019 Feb 1; 248(Medicina (Kaunas, Lithuania) 43 2007):114-125.
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    16. Stefano S.K. Kaburu, Brianne Beisner, Krishna N. Balasubramaniam, Pascal R. Marty, Eliza Bliss-Moreau, Lalit Mohan, Sandeep K. Rattan, Malgorzata E. Arlet, Edward R. Atwill, Brenda McCowan. Interactions with humans impose time constraints on urban-dwelling rhesus macaques (Macaca mulatta). Behaviour. 2019 Jan 1; 156(12):1255-1282.
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    17. Miller EA, Johnson TJ, Omondi G, Atwill ER, Isbell LA, McCowan B, VanderWaal K. Assessing Transmission of Antimicrobial-Resistant Escherichia coli in Wild Giraffe Contact Networks. Appl Environ Microbiol. 2019 01 01; 85(1). PMID: 30413480.
      View in: PubMed
    18. Antaki-Zukoski EM, Li X, Pesavento PA, Nguyen THB, Hoar BR, Atwill ER. Comparative Pathogenicity of Wildlife and Bovine Escherichia coli O157:H7 Strains in Experimentally Inoculated Neonatal Jersey Calves. Vet Sci. 2018 Oct 15; 5(4). PMID: 30326606.
      View in: PubMed
    19. Jeamsripong S, Chuanchuen R, Atwill ER. Assessment of Bacterial Accumulation and Environmental Factors in Sentinel Oysters and Estuarine Water Quality from the Phang Nga Estuary Area in Thailand. Int J Environ Res Public Health. 2018 09 10; 15(9). PMID: 30201900.
      View in: PubMed
    20. Pandey P, Soupir ML, Wang Y, Cao W, Biswas S, Vaddella V, Atwill R, Merwade V, Pasternack G. Water and Sediment Microbial Quality of Mountain and Agricultural Streams. J Environ Qual. 2018 09; 47(5):985-996. PMID: 30272806.
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    21. Partyka ML, Bond RF, Chase JA, Atwill ER. Spatiotemporal Variability in Microbial Quality of Western US Agricultural Water Supplies: A Multistate Study. J Environ Qual. 2018 09; 47(5):939-948. PMID: 30272786.
      View in: PubMed
    22. Wei X, Li J, Hou S, Xu C, Zhang H, Atwill ER, Li X, Yang Z, Chen S. Assessment of Microbiological Safety of Water in Public Swimming Pools in Guangzhou, China. Int J Environ Res Public Health. 2018 07 05; 15(7). PMID: 29976878.
      View in: PubMed
    23. Wang Y, Pandey P, Zheng Y, Atwill ER, Pasternack G. Particle attached and free floating pathogens survival kinetics under typical stream and thermal spring temperature conditions. AMB Express. 2018 Jun 19; 8(1):100. PMID: 29923143.
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    24. Laurel A. Sellers, Rachael F. Long, Michele T. Jay-Russell, Xunde Li, Edward R. Atwill, Richard M. Engeman, Roger A. Baldwin. Impact of field-edge habitat on mammalian wildlife abundance, distribution, and vectored foodborne pathogens in adjacent crops. Crop Protection. 2018 Jun 1; 108(Crop Protect. 89 2016):1-11.
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    25. Balasubramaniam K, Beisner B, Guan J, Vandeleest J, Fushing H, Atwill E, McCowan B. Social network community structure and the contact-mediated sharing of commensal E. coli among captive rhesus macaques (Macaca mulatta). PeerJ. 2018; 6:e4271. PMID: 29372120.
      View in: PubMed
    26. Partyka ML, Bond RF, Chase JA, Atwill ER. Spatial and temporal variability of bacterial indicators and pathogens in six California reservoirs during extreme drought. Water Res. 2018 02 01; 129:436-446. PMID: 29179123.
      View in: PubMed
    27. Worley JN, Flores KA, Yang X, Chase JA, Cao G, Tang S, Meng J, Atwill ER. Prevalence and Genomic Characterization of Escherichia coli O157:H7 in Cow-Calf Herds throughout California. Appl Environ Microbiol. 2017 08 15; 83(16). PMID: 28550057.
      View in: PubMed
    28. Kilonzo C, Li X, Vodoz T, Xiao C, Chase JA, Jay-Russell MT, Vivas EJ, Atwill ER. Quantitative Shedding of Multiple Genotypes of Cryptosporidium and Giardia by Deer Mice ( Peromyscus maniculatus ) in a Major Agricultural Region on the California Central Coast. J Food Prot. 2017 Apr 07; 819-828. PMID: 28387527.
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    29. Ludington WB, Seher TD, Applegate O, Li X, Kliegman JI, Langelier C, Atwill ER, Harter T, DeRisi JL. Assessing biosynthetic potential of agricultural groundwater through metagenomic sequencing: A diverse anammox community dominates nitrate-rich groundwater. PLoS One. 2017; 12(4):e0174930. PMID: 28384184.
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    30. Chase JA, Atwill ER, Partyka ML, Bond RF, Oryang D. Inactivation of Escherichia coli O157:H7 on Romaine Lettuce When Inoculated in a Fecal Slurry Matrix. J Food Prot. 2017 Apr 03; 792-798. PMID: 28371591.
      View in: PubMed
    31. Partyka ML, Bond RF, Chase JA, Atwill ER. Monitoring bacterial indicators of water quality in a tidally influenced delta: A Sisyphean pursuit. Sci Total Environ. 2017 Feb 01; 578:346-356. PMID: 27842967.
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    32. Balasubramaniam K, Beisner B, Vandeleest J, Atwill E, McCowan B. Social buffering and contact transmission: network connections have beneficial and detrimental effects on Shigella infection risk among captive rhesus macaques. PeerJ. 2016; 4:e2630. PMID: 27812426.
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    33. Vandeleest JJ, Beisner BA, Hannibal DL, Nathman AC, Capitanio JP, Hsieh F, Atwill ER, McCowan B. Decoupling social status and status certainty effects on health in macaques: a network approach. PeerJ. 2016; 4:e2394. PMID: 27672495.
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    34. Harris LJ, Lieberman V, Mashiana RP, Atwill E, Yang M, Chandler JC, Bisha B, Jones T. Prevalence and Amounts of Salmonella Found on Raw California Inshell Pistachios. J Food Prot. 2016 08; 79(8):1304-15. PMID: 27497117.
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    35. Beisner BA, Balasubramaniam KN, Fernandez K, Heagerty A, Seil SK, Atwill ER, Gupta BK, Tyagi PC, Chauhan NP, Bonal BS, Sinha PR, McCowan B. Prevalence of enteric bacterial parasites with respect to anthropogenic factors among commensal rhesus macaques in Dehradun, India. Primates. 2016 Oct; 57(4):459-69. PMID: 27056264.
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    36. Partyka ML, Bond RF, Chase JA, Kiger L, Atwill ER. Multistate Evaluation of Microbial Water and Sediment Quality from Agricultural Recovery Basins. J Environ Qual. 2016 Mar; 45(2):657-65. PMID: 27065413.
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    37. Daniel S. Karp, Patrick Baur, Edward R. Atwill, Kathryn De Master, Sasha Gennet, Alastair Iles, Joanna L. Nelson, Amber R. Sciligo, Claire Kremen. The Unintended Ecological and Social Impacts of Food Safety Regulations in California's Central Coast Region. BioScience. 2015 Dec 1; 65(12):1173-1183.
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    38. Li X, Atwill ER, Antaki E, Applegate O, Bergamaschi B, Bond RF, Chase J, Ransom KM, Samuels W, Watanabe N, Harter T. Fecal Indicator and Pathogenic Bacteria and Their Antibiotic Resistance in Alluvial Groundwater of an Irrigated Agricultural Region with Dairies. J Environ Qual. 2015 Sep; 44(5):1435-47. PMID: 26436261.
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    39. Li X, Pereira Md, Larsen R, Xiao C, Phillips R, Striby K, McCowan B, Atwill ER. Cryptosporidium rubeyi n. sp. (Apicomplexa: Cryptosporidiidae) in multiple Spermophilus ground squirrel species. Int J Parasitol Parasites Wildl. 2015 Dec; 4(3):343-50. PMID: 26543805.
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    40. Karp DS, Gennet S, Kilonzo C, Partyka M, Chaumont N, Atwill ER, Kremen C. Comanaging fresh produce for nature conservation and food safety. Proc Natl Acad Sci U S A. 2015 Sep 01; 112(35):11126-31. PMID: 26261343.
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    41. Gu Q, Li X, Qu P, Hou S, Li J, Atwill ER, Chen S. Characterization of Francisella species isolated from the cooling water of an air conditioning system. Braz J Microbiol. 2015 Jul-Sep; 46(3):921-7. PMID: 26413079.
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    42. Montecino-Latorre D, Li X, Xiao C, Atwill ER. Elevation and vegetation determine Cryptosporidium oocyst shedding by yellow-bellied marmots (Marmota flaviventris) in the Sierra Nevada Mountains. Int J Parasitol Parasites Wildl. 2015 Aug; 4(2):171-7. PMID: 25834788.
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    43. Pan F, Li X, Carabez J, Ragosta G, Fernandez KL, Wang E, Thiptara A, Antaki E, Atwill ER. Cross-sectional survey of indicator and pathogenic bacteria on vegetables sold from Asian vendors at farmers' markets in northern California. J Food Prot. 2015 Mar; 78(3):602-8. PMID: 25719888.
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    44. Atwill ER, Chase JA, Oryang D, Bond RF, Koike ST, Cahn MD, Anderson M, Mokhtari A, Dennis S. Transfer of Escherichia coli O157:H7 from simulated wildlife scat onto romaine lettuce during foliar irrigation. J Food Prot. 2015 Feb; 78(2):240-7. PMID: 25710137.
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    45. Beisner BA, Heagerty A, Seil SK, Balasubramaniam KN, Atwill ER, Gupta BK, Tyagi PC, Chauhan NP, Bonal BS, Sinha PR, McCowan B. Human-wildlife conflict: proximate predictors of aggression between humans and rhesus macaques in India. Am J Phys Anthropol. 2015 Feb; 156(2):286-94. PMID: 25348896.
      View in: PubMed
    46. John M. Adaska, Edward R. Atwill, Glenn A. Nader. Diagnostics in animal health: How UC helps exclude and minimize impact of livestock pathogens. California Agriculture. 2014 Oct 1; 68(4):109-116.
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    47. Chen CP, Fushing H, Atwill R, Koehl P. biDCG: a new method for discovering global features of DNA microarray data via an iterative re-clustering procedure. PLoS One. 2014; 9(7):e102445. PMID: 25047553.
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    48. Harter T, Watanabe N, Li X, Atwill ER, Samuels W. Microbial groundwater sampling protocol for fecal-rich environments. Ground Water. 2014 Sep; 52 Suppl 1:126-36. PMID: 24903186.
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    49. Benjamin LA, Jay-Russell MT, Atwill ER, Cooley MB, Carychao D, Larsen RE, Mandrell RE. Risk factors for Escherichia coli O157 on beef cattle ranches located near a major produce production region. Epidemiol Infect. 2015 Jan; 143(1):81-93. PMID: 24650854.
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    50. Partyka ML, Bond RF, Farrar J, Falco A, Cassens B, Cruse A, Atwill ER. Quantifying the sensitivity of scent detection dogs to identify fecal contamination on raw produce. J Food Prot. 2014 Jan; 77(1):6-14. PMID: 24405993.
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    51. Kimberly L. VanderWaal, Edward R. Atwill, Lynne A. Isbell, Brenda McCowan. Quantifying microbe transmission networks for wild and domestic ungulates in Kenya. Biological Conservation. 2014 Jan 1; 169:136-146.
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    52. Kimberly L. VanderWaal, Edward R. Atwill, Stacie Hooper, Kelly Buckle, Brenda McCowan. Network structure and prevalence of Cryptosporidium in Belding’s ground squirrels. Behavioral Ecology and Sociobiology. 2013 Dec 1; 67(12):1951-1959.
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    53. Li X, Watanabe N, Xiao C, Harter T, McCowan B, Liu Y, Atwill ER. Antibiotic-resistant E. coli in surface water and groundwater in dairy operations in Northern California. Environ Monit Assess. 2014 Feb; 186(2):1253-60. PMID: 24097011.
      View in: PubMed
    54. VanderWaal KL, Atwill ER, Isbell LA, McCowan B. Linking social and pathogen transmission networks using microbial genetics in giraffe (Giraffa camelopardalis). J Anim Ecol. 2014 Mar; 83(2):406-14. PMID: 24117416.
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    55. Kilonzo C, Li X, Vivas EJ, Jay-Russell MT, Fernandez KL, Atwill ER. Fecal shedding of zoonotic food-borne pathogens by wild rodents in a major agricultural region of the central California coast. Appl Environ Microbiol. 2013 Oct; 79(20):6337-44. PMID: 23934490.
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    56. Roche LM, Kromschroeder L, Atwill ER, Dahlgren RA, Tate KW. Water Quality Conditions Associated with Cattle Grazing and Recreation on National Forest Lands. PLoS One. 2013; 8(6):e68127. PMID: 23826370.
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    57. Cooley MB, Jay-Russell M, Atwill ER, Carychao D, Nguyen K, Quiñones B, Patel R, Walker S, Swimley M, Pierre-Jerome E, Gordus AG, Mandrell RE. Development of a robust method for isolation of shiga toxin-positive Escherichia coli (STEC) from fecal, plant, soil and water samples from a leafy greens production region in California. PLoS One. 2013; 8(6):e65716. PMID: 23762414.
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    58. Pereira Md, Byrne BA, Nguyen TB, Lewis DJ, Atwill ER. The occurrence of subtilase-cytotoxin-encoding genes in environmental Escherichia coli isolated from a Northern California estuary. Can J Microbiol. 2013 Jun; 59(6):437-41. PMID: 23750960.
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    59. Benjamin L, Atwill ER, Jay-Russell M, Cooley M, Carychao D, Gorski L, Mandrell RE. Occurrence of generic Escherichia coli, E. coli O157 and Salmonella spp. in water and sediment from leafy green produce farms and streams on the Central California coast. Int J Food Microbiol. 2013 Jul 01; 165(1):65-76. PMID: 23697918.
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    60. Bruce R. Hoar, Edward R. Atwill, Lesa Carlton, Jorge Celis, Jennifer Carabez, Tran Nguyen. Buffers between grazing sheep and leafy crops augment food safety. California Agriculture. 2013 Apr 1; 67(2):104-109.
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    61. Lewis DJ, Atwill ER, Pereira Md, Bond R. Spatial and Temporal Dynamics of Fecal Coliform and Associated with Suspended Solids and Water within Five Northern California Estuaries. J Environ Qual. 2013 Jan-Feb; 42(1):229-38. PMID: 23673758.
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    62. Chen S, Li X, Li J, Atwill ER. Rapid detection of Brucella spp. using loop-mediated isothermal amplification (LAMP). Methods Mol Biol. 2013; 1039:99-108. PMID: 24026689.
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    63. Park Y, Atwill ER, Hou L, Packman AI, Harter T. Deposition of Cryptosporidium parvum oocysts in porous media: a synthesis of attachment efficiencies measured under varying environmental conditions. Environ Sci Technol. 2012 Sep 04; 46(17):9491-500. PMID: 22861686.
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    64. Adrian Unc, Michael J. Goss, Simon Cook, Xunde Li, Edward R. Atwill, Thomas Harter. Analysis of matrix effects critical to microbial transport in organic waste-affected soils across laboratory and field scales. Water Resources Research. 2012 Jun 1; 48(6).
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    65. Kilonzo C, Atwill ER, Mandrell R, Garrick M, Villanueva V, Hoar BR. Prevalence and molecular characterization of Escherichia coli O157:H7 by multiple-locus variable-number tandem repeat analysis and pulsed-field gel electrophoresis in three sheep farming operations in California. J Food Prot. 2011 Sep; 74(9):1413-21. PMID: 21902909.
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    66. McCowan B, Beisner BA, Capitanio JP, Jackson ME, Cameron AN, Seil S, Atwill ER, Fushing H. Network stability is a balancing act of personality, power, and conflict dynamics in rhesus macaque societies. PLoS One. 2011; 6(8):e22350. PMID: 21857922.
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    67. Thiptara A, Atwill ER, Kongkaew W, Chomel BB. Epidemiologic trends of rabies in domestic animals in southern Thailand, 1994-2008. Am J Trop Med Hyg. 2011 Jul; 85(1):138-45. PMID: 21734139.
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    68. Ragosta G, Evensen C, Atwill ER, Walker M, Ticktin T, Asquith A, Tate KW. Risk factors for elevated Enterococcus concentrations in a rural tropical island watershed. J Environ Manage. 2011 Aug; 92(8):1910-5. PMID: 21530065.
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    69. Gorski L, Parker CT, Liang A, Cooley MB, Jay-Russell MT, Gordus AG, Atwill ER, Mandrell RE. Prevalence, distribution, and diversity of Salmonella enterica in a major produce region of California. Appl Environ Microbiol. 2011 Apr; 77(8):2734-48. PMID: 21378057.
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    70. Kondo S, Hoar BR, Villanueva V, Mandrell RE, Atwill ER. Longitudinal prevalence and molecular typing of Escherichia coli O157:H7 by use of multiple-locus variable-number tandem-repeat analysis and pulsed-field gel electrophoresis in fecal samples collected from a range-based herd of beef cattle in California. Am J Vet Res. 2010 Nov; 71(11):1339-47. PMID: 21034325.
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    71. Pereira Md, Li X, McCowan B, Phillips RL, Atwill ER. Multiple unique Cryptosporidium isolates from three species of ground squirrels (Spermophilus beecheyi, S. beldingi, and S. lateralis) in California. Appl Environ Microbiol. 2010 Dec; 76(24):8269-76. PMID: 20971867.
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    72. Lewis DJ, Atwill ER, Lennox MS, Pereira MD, Miller WA, Conrad PA, Tate KW. Management of microbial contamination in storm runoff from California coastal dairy pastures. J Environ Qual. 2010 Sep-Oct; 39(5):1782-9. PMID: 21043283.
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    73. Ragosta G, Evensen C, Atwill ER, Walker M, Ticktin T, Asquith A, Tate KW. Causal connections between water quality and land use in a rural tropical island watershed: rural tropical island watershed analysis. Ecohealth. 2010 Aug; 7(1):105-13. PMID: 20300800.
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    74. Mohammed HO, Atwill E, Dunbar L, Ward T, McDonough P, Gonzalez R, Stipetic K. The risk of Listeria monocytogenes infection in beef cattle operations. J Appl Microbiol. 2010 Jan; 108(1):349-56. PMID: 19664067.
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    75. Li X, Atwill ER, Dunbar LA, Tate KW. Effect of daily temperature fluctuation during the cool season on the infectivity of Cryptosporidium parvum. Appl Environ Microbiol. 2010 Feb; 76(4):989-93. PMID: 20023095.
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    76. Ostermann-Kelm SD, Atwill EA, Rubin ES, Hendrickson LE, Boyce WM. Impacts of feral horses on a desert environment. BMC Ecol. 2009 Nov 10; 9:22. PMID: 19903355.
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    77. Hoar BR, Paul RR, Siembieda J, Pereira Md, Atwill ER. Giardia duodenalis in feedlot cattle from the central and western United States. BMC Vet Res. 2009 Oct 02; 5:37. PMID: 19799795.
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    78. Mohammed HO, Stipetic K, McDonough PL, Gonzalez RN, Nydam DV, Atwill ER. Identification of potential on-farm sources of Listeria monocytogenes in herds of dairy cattle. Am J Vet Res. 2009 Mar; 70(3):383-8. PMID: 19254151.
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    79. Lewis DJ, Atwill ER, Lennox MS, Pereira MD, Miller WA, Conrad PA, Tate KW. Reducing microbial contamination in storm runoff from high use areas on California coastal dairies. Water Sci Technol. 2009; 60(7):1731-43. PMID: 19809136.
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    80. Knox AK, Dahlgren RA, Tate KW, Atwill ER. Efficacy of natural wetlands to retain nutrient, sediment and microbial pollutants. J Environ Qual. 2008 Sep-Oct; 37(5):1837-46. PMID: 18689745.
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    81. Miller WA, Lewis DJ, Pereira MD, Lennox M, Conrad PA, Tate KW, Atwill ER. Farm factors associated with reducing Cryptosporidium loading in storm runoff from dairies. J Environ Qual. 2008 Sep-Oct; 37(5):1875-82. PMID: 18689749.
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    82. Stoddard RA, Atwill ER, Conrad PA, Byrne BA, Jang S, Lawrence J, McCowan B, Gulland FM. The effect of rehabilitation of northern elephant seals (Mirounga angustirostris) on antimicrobial resistance of commensal Escherichia coli. Vet Microbiol. 2009 Jan 13; 133(3):264-71. PMID: 18783898.
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    83. Dabritz HA, Miller MA, Gardner IA, Packham AE, Atwill ER, Conrad PA. Risk factors for Toxoplasma gondii infection in wild rodents from central coastal California and a review of T. gondii prevalence in rodents. J Parasitol. 2008 Jun; 94(3):675-83. PMID: 18605783.
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    84. Stoddard RA, Atwill ER, Gulland FM, Miller MA, Dabritz HA, Paradies DM, Worcester KR, Jang S, Lawrence J, Byrne BA, Conrad PA. Risk factors for infection with pathogenic and antimicrobial-resistant fecal bacteria in northern elephant seals in California. Public Health Rep. 2008 May-Jun; 123(3):360-70. PMID: 19006978.
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    85. Stacey Ostermann-Kelm, Edward R. Atwill, Esther S. Rubin, Mark C. Jorgensen, Walter M. Boyce. Interactions between Feral Horses and Desert Bighorn Sheep at Water. Journal of Mammalogy. 2008 Apr 1; 89(2):459-466.
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    86. McCrea BA, Tonooka KH, Van Worth C, Atwill ER, Schrader JS. Detection of Campylobacter jejuni from the skin of broiler chickens, ducks, squab, quail, and guinea fowl carcasses. Foodborne Pathog Dis. 2008 Feb; 5(1):53-7. PMID: 18260815.
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    87. Harter T, Atwill ER, Hou L, Karle BM, Tate KW. Developing risk models of Cryptosporidium transport in soils from vegetated, tilted soilbox experiments. J Environ Qual. 2008 Jan-Feb; 37(1):245-58. PMID: 18178898.
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    88. Dabritz HA, Miller MA, Atwill ER, Gardner IA, Leutenegger CM, Melli AC, Conrad PA. Detection of Toxoplasma gondii-like oocysts in cat feces and estimates of the environmental oocyst burden. J Am Vet Med Assoc. 2007 Dec 01; 231(11):1676-84. PMID: 18052801.
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    89. Dabritz HA, Miller MA, Packham AE, Rejmanek D, Leutenegger CM, Gardner IA, Atwill ER, Patricia A C. Experimental infection of Peromyscus californicus with Toxoplasma gondii. J Parasitol. 2007 Dec; 93(6):1360-4. PMID: 18314680.
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    90. Jay MT, Cooley M, Carychao D, Wiscomb GW, Sweitzer RA, Crawford-Miksza L, Farrar JA, Lau DK, O'Connell J, Millington A, Asmundson RV, Atwill ER, Mandrell RE. Escherichia coli O157:H7 in feral swine near spinach fields and cattle, central California coast. Emerg Infect Dis. 2007 Dec; 13(12):1908-11. PMID: 18258044.
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    91. Miller WA, Lewis DJ, Lennox M, Pereira MG, Tate KW, Conrad PA, Atwill ER. Climate and on-farm risk factors associated with Giardia duodenalis cysts in storm runoff from California coastal dairies. Appl Environ Microbiol. 2007 Nov; 73(21):6972-9. PMID: 17873066.
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    92. Dabritz HA, Gardner IA, Miller MA, Lappin MR, Atwill ER, Packham AE, Melli AC, Conrad PA. Evaluation of two Toxoplasma gondii serologic tests used in a serosurvey of domestic cats in California. J Parasitol. 2007 Aug; 93(4):806-16. PMID: 17918359.
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    93. Pereira Md, Atwill ER, Barbosa AP. Prevalence and associated risk factors for Giardia lamblia infection among children hospitalized for diarrhea in Goiânia, Goiás State, Brazil. Rev Inst Med Trop Sao Paulo. 2007 May-Jun; 49(3):139-45. PMID: 17625689.
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    94. Searcy KE, Packman AI, Atwill ER, Harter T. Capture and retention of Cryptosporidium parvum oocysts by Pseudomonas aeruginosa biofilms. Appl Environ Microbiol. 2006 Sep; 72(9):6242-7. PMID: 16957251.
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    95. Miller WA, Miller MA, Gardner IA, Atwill ER, Byrne BA, Jang S, Harris M, Ames J, Jessup D, Paradies D, Worcester K, Melli A, Conrad PA. Salmonella spp., Vibrio spp., Clostridium perfringens, and Plesiomonas shigelloides in marine and freshwater invertebrates from coastal California ecosystems. Microb Ecol. 2006 Aug; 52(2):198-206. PMID: 16897302.
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    96. Dabritz HA, Atwill ER, Gardner IA, Miller MA, Conrad PA. Outdoor fecal deposition by free-roaming cats and attitudes of cat owners and nonowners toward stray pets, wildlife, and water pollution. J Am Vet Med Assoc. 2006 Jul 01; 229(1):74-81. PMID: 16817717.
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    97. Tate KW, Atwill ER, Bartolome JW, Nader G. Significant Escherichia coli attenuation by vegetative buffers on annual grasslands. J Environ Qual. 2006 May-Jun; 35(3):795-805. PMID: 16585622.
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    98. Searcy KE, Packman AI, Atwill ER, Harter T. Deposition of Cryptosporidium oocysts in streambeds. Appl Environ Microbiol. 2006 Mar; 72(3):1810-6. PMID: 16517626.
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    99. McCrea BA, Tonooka KH, VanWorth C, Atwill ER, Schrader JS. Colonizing capability of Campylobacter jejuni genotypes from low-prevalence avian species in broiler chickens. J Food Prot. 2006 Feb; 69(2):417-20. PMID: 16496585.
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    100. Atwill ER, Pereira MD, Alonso LH, Elmi C, Epperson WB, Smith R, Riggs W, Carpenter LV, Dargatz DA, Hoar B. Environmental load of Cryptosporidium parvum oocysts from cattle manure in feedlots from the central and western United States. J Environ Qual. 2006 Jan-Feb; 35(1):200-6. PMID: 16391291.
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    101. Atwill ER, Tate KW, Pereira MD, Bartolome J, Nader G. Efficacy of natural grassland buffers for removal of Cryptosporidium parvum in rangeland runoff. J Food Prot. 2006 Jan; 69(1):177-84. PMID: 16416916.
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    102. McCrea BA, Tonooka KH, VanWorth C, Boggs CL, Atwill ER, Schrader JS. Prevalence of Campylobacter and Salmonella species on farm, after transport, and at processing in specialty market poultry. Poult Sci. 2006 Jan; 85(1):136-43. PMID: 16493957.
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    103. Stoddard RA, Gulland MD, Atwill ER, Lawrence J, Jang S, Conrad PA. Salmonella and Campylobacter spp. in northern elephant seals, California. Emerg Infect Dis. 2005 Dec; 11(12):1967-9. PMID: 16485493.
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    104. Kirk JH, McCowan B, Atwill ER, Glenn KS, Higginbotham GE, Collar CA, Castillo A, Reed BA, Peterson NG, Cullor JS. Association of minimum inhibitory concentration cluster patterns with dairy management practices for environmental bacteria isolated from bulk tank milk. J Dairy Sci. 2005 Oct; 88(10):3710-20. PMID: 16162546.
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    105. Miller WA, Gardner IA, Atwill ER, Leutenegger CM, Miller MA, Hedrick RP, Melli AC, Barnes NM, Conrad PA. Evaluation of methods for improved detection of Cryptosporidium spp. in mussels (Mytilus californianus). J Microbiol Methods. 2006 Jun; 65(3):367-79. PMID: 16181691.
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    106. Miller WA, Miller MA, Gardner IA, Atwill ER, Harris M, Ames J, Jessup D, Melli A, Paradies D, Worcester K, Olin P, Barnes N, Conrad PA. New genotypes and factors associated with Cryptosporidium detection in mussels (Mytilus spp.) along the California coast. Int J Parasitol. 2005 Sep; 35(10):1103-13. PMID: 15993883.
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    107. Lewis DJ, Atwill ER, Lennox MS, Hou L, Karle B, Tate KW. Linking on-farm dairy management practices to storm-flow fecal coliform loading for California coastal watersheds. Environ Monit Assess. 2005 Aug; 107(1-3):407-25. PMID: 16418926.
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    108. Li X, Atwill ER, Dunbar LA, Jones T, Hook J, Tate KW. Seasonal temperature fluctuations induces rapid inactivation of Cryptosporidium parvum. Environ Sci Technol. 2005 Jun 15; 39(12):4484-9. PMID: 16047784.
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    109. Miller WA, Atwill ER, Gardner IA, Miller MA, Fritz HM, Hedrick RP, Melli AC, Barnes NM, Conrad PA. Clams (Corbicula fluminea) as bioindicators of fecal contamination with Cryptosporidium and Giardia spp. in freshwater ecosystems in California. Int J Parasitol. 2005 May; 35(6):673-84. PMID: 15862580.
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    110. Berge AC, Atwill ER, Sischo WM. Animal and farm influences on the dynamics of antibiotic resistance in faecal Escherichia coli in young dairy calves. Prev Vet Med. 2005 Jun 10; 69(1-2):25-38. PMID: 15899294.
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    111. Searcy KE, Packman AI, Atwill ER, Harter T. Association of Cryptosporidium parvum with suspended particles: impact on oocyst sedimentation. Appl Environ Microbiol. 2005 Feb; 71(2):1072-8. PMID: 15691968.
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    112. Tate KW, Pereira MD, Atwill ER. Efficacy of vegetated buffer strips for retaining Cryptosporidium parvum. J Environ Qual. 2004 Nov-Dec; 33(6):2243-51. PMID: 15537947.
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    113. Vanegas JA, Reynolds J, Atwill ER. Effects of an injectable trace mineral supplement on first-service conception rate of dairy cows. J Dairy Sci. 2004 Nov; 87(11):3665-71. PMID: 15483150.
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    114. Atwill ER, Phillips R, Pereira MD, Li X, McCowan B. Seasonal shedding of multiple Cryptosporidium genotypes in California ground squirrels (Spermophilus beecheyi). Appl Environ Microbiol. 2004 Nov; 70(11):6748-52. PMID: 15528541.
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    115. Schrader JS, Singer RS, Atwill ER. A prospective study of management and litter variables associated with cellulitis in California broiler flocks. Avian Dis. 2004 Sep; 48(3):522-30. PMID: 15529974.
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    116. Jeffrey JS, Singer RS, O'Connor R, Atwill ER. Prevalence of pathogenic Escherichia coli in the broiler house environment. Avian Dis. 2004 Jan-Mar; 48(1):189-95. PMID: 15077814.
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    117. Hou L, Li X, Dunbar L, Moeller R, Palermo B, Atwill ER. Neonatal-mouse infectivity of intact Cryptosporidium parvum oocysts isolated after optimized in vitro excystation. Appl Environ Microbiol. 2004 Jan; 70(1):642-6. PMID: 14711704.
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    118. Atwill ER, Pereira Md. Lack of detectable shedding of Cryptosporidium parvum oocysts by periparturient dairy cattle. J Parasitol. 2003 Dec; 89(6):1234-6. PMID: 14740916.
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    119. Berge AC, Atwill ER, Sischo WM. Assessing antibiotic resistance in fecal Escherichia coli in young calves using cluster analysis techniques. Prev Vet Med. 2003 Oct 15; 61(2):91-102. PMID: 14519339.
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    120. Moore DA, Atwill ER, Kirk JH, Brahmbhatt D, Herrera Alonso L, Hou L, Singer MD, Miller TD. Prophylactic use of decoquinate for infections with Cryptosporidium parvum in experimentally challenged neonatal calves. J Am Vet Med Assoc. 2003 Sep 15; 223(6):839-45. PMID: 14507102.
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    121. Atwill ER, Hoar B, das Graças Cabral Pereira M, Tate KW, Rulofson F, Nader G. Improved quantitative estimates of low environmental loading and sporadic periparturient shedding of Cryptosporidium parvum in adult beef cattle. Appl Environ Microbiol. 2003 Aug; 69(8):4604-10. PMID: 12902248.
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    122. Li X, Tate KW, Dunbar LA, Huang B, Atwill ER. Efficiency for recovering Encephalitozoon intestinalis spores from waters by centrifugation and immunofluorescence microscopy. J Eukaryot Microbiol. 2003; 50 Suppl:579-80. PMID: 14736170.
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    123. Xiao L, Sulaiman IM, Ryan UM, Zhou L, Atwill ER, Tischler ML, Zhang X, Fayer R, Lal AA. Host adaptation and host-parasite co-evolution in Cryptosporidium: implications for taxonomy and public health. Int J Parasitol. 2002 Dec 19; 32(14):1773-85. PMID: 12464424.
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    124. Atwill ER, Hou L, Karle BM, Harter T, Tate KW, Dahlgren RA. Transport of Cryptosporidium parvum oocysts through vegetated buffer strips and estimated filtration efficiency. Appl Environ Microbiol. 2002 Nov; 68(11):5517-27. PMID: 12406745.
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    125. Kirk J, Atwill E, Holmberg C, Arana M, Collar C, Ghirardelli D, Higginbotham G, Markagaard G, Mullinax D, Wubishet A. Prevalence of and risk factors for Salmonella in water offered to weaned dairy calves in California, USA. Prev Vet Med. 2002 Jun 25; 54(2):169-78. PMID: 12069779.
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    126. Pereira MD, Atwill ER, Barbosa AP, Silva SA, García-Zapata MT. Intra-familial and extra-familial risk factors associated with Cryptosporidium parvum infection among children hospitalized for diarrhea in Goiânia, Goiás, Brazil. Am J Trop Med Hyg. 2002 Jun; 66(6):787-93. PMID: 12224593.
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    127. Moore DA, Sischo WM, Festa DM, Reynolds JP, Robert Atwill E, Holmberg CA. Influence of arrival weight, season and calf supplier on survival in Holstein beef calves on a calf ranch in California, USA. Prev Vet Med. 2002 Feb 14; 53(1-2):103-15. PMID: 11821140.
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    128. Hoar BR, Atwill ER, Elmi C, Farver TB. An examination of risk factors associated with beef cattle shedding pathogens of potential zoonotic concern. Epidemiol Infect. 2001 Aug; 127(1):147-55. PMID: 11561967.
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    129. Atwill ER, Camargo SM, Phillips R, Alonso LH, Tate KW, Jensen WA, Bennet J, Little S, Salmon TP. Quantitative shedding of two genotypes of Cryptosporidium parvum in California ground squirrels (Spermophilus beecheyi). Appl Environ Microbiol. 2001 Jun; 67(6):2840-3. PMID: 11375204.
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    130. Rulofson FC, Atwill ER, Holmberg CA. Fecal shedding of Giardia duodenalis, Cryptosporidium parvum, Salmonella organisms, and Escherichia coli O157:H7 from llamas in California. Am J Vet Res. 2001 Apr; 62(4):637-42. PMID: 11327478.
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    131. Jeffrey JS, Atwill ER, Hunter A. Prevalence of Campylobacter and Salmonella at a squab (young pigeon) processing plant. Poult Sci. 2001 Feb; 80(2):151-5. PMID: 11233002.
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    132. Singer RS, Atwill ER, Carpenter TE, Jeffrey JS, Johnson WO, Hirsh DC. Selection bias in epidemiological studies of infectious disease using Escherichia coli and avian cellulitis as an example. Epidemiol Infect. 2001 Feb; 126(1):139-45. PMID: 11293674.
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    133. Jeffrey JS, Atwill ER, Hunter A. Farm and management variables linked to fecal shedding of Campylobacter and Salmonella in commercial squab production. Poult Sci. 2001 Jan; 80(1):66-70. PMID: 11214338.
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    134. Singer RS, Jeffrey JS, Carpenter TE, Cooke CL, Atwill ER, Johnson WO, Hirsh DC. Persistence of cellulitis-associated Escherichia coli DNA fingerprints in successive broiler chicken flocks. Vet Microbiol. 2000 Jul 03; 75(1):59-71. PMID: 10865152.
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    135. Atwill ER, McDougald NK, Perea L. Cross-sectional study of faecal shedding of Giardia duodenalis and Cryptosporidium parvum among packstock in the Sierra Nevada Range. Equine Vet J. 2000 May; 32(3):247-52. PMID: 10836481.
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    136. Jeffrey JS, Hunter A, Atwill ER. A field-suitable, semisolid aerobic enrichment medium for isolation of Campylobacter jejuni in small numbers. J Clin Microbiol. 2000 Apr; 38(4):1668-9. PMID: 10747165.
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    137. Singer RS, Johnson WO, Jeffrey JS, Chin RP, Carpenter TE, Atwill ER, Hirsh DC. A statistical model for assessing sample size for bacterial colony selection: a case study of Escherichia coli and avian cellulitis. J Vet Diagn Invest. 2000 Mar; 12(2):118-25. PMID: 10730939.
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    138. Sischo WM, Atwill ER, Lanyon LE, George J. Cryptosporidia on dairy farms and the role these farms may have in contaminating surface water supplies in the northeastern United States. Prev Vet Med. 2000 Feb 29; 43(4):253-67. PMID: 10718494.
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    139. Thomas Harter, Sonja Wagner, Edward R. Atwill. Colloid Transport and Filtration of Cryptosporidium parvum in Sandy Soils and Aquifer Sediments. Environmental Science and Technology. 2000 Jan 1; 34(1):62-70.
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    140. Atwill ER, Johnson EM, Pereira MG. Association of herd composition, stocking rate, and duration of calving season with fecal shedding of Cryptosporidium parvum oocysts in beef herds. J Am Vet Med Assoc. 1999 Dec 15; 215(12):1833-8. PMID: 10613218.
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    141. Hoar BR, Atwill ER, Elmi C, Utterback WW, Edmondson AJ. Comparison of fecal samples collected per rectum and off the ground for estimation of environmental contamination attributable to beef cattle. Am J Vet Res. 1999 Nov; 60(11):1352-6. PMID: 10566807.
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    142. Rochelle PA, Jutras EM, Atwill ER, De Leon R, Stewart MH. Polymorphisms in the beta-tubulin gene of Cryptosporidium parvum differentiate between isolates based on animal host but not geographic origin. J Parasitol. 1999 Oct; 85(5):986-9. PMID: 10577745.
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    143. Singer RS, Jeffrey JS, Carpenter TE, Cooke CL, Chin RP, Atwill ER, Hirsh DC. Spatial heterogeneity of Escherichia coli DNA fingerprints isolated from cellulitis lesions in chickens. Avian Dis. 1999 Oct-Dec; 43(4):756-62. PMID: 10611991.
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    144. Pereira MD, Atwill ER, Jones T. Comparison of sensitivity of immunofluorescent microscopy to that of a combination of immunofluorescent microscopy and immunomagnetic separation for detection of Cryptosporidium parvum oocysts in adult bovine feces. Appl Environ Microbiol. 1999 Jul; 65(7):3236-9. PMID: 10388728.
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    145. Atwill ER, Johnson E, Klingborg DJ, Veserat GM, Markegard G, Jensen WA, Pratt DW, Delmas RE, George HA, Forero LC, Philips RL, Barry SJ, McDougald NK, Gildersleeve RR, Frost WE. Age, geographic, and temporal distribution of fecal shedding of Cryptosporidium parvum oocysts in cow-calf herds. Am J Vet Res. 1999 Apr; 60(4):420-5. PMID: 10211683.
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    146. Kirk JH, Atwill ER, Festa D, Adams C. Effect of a commercially available nonspecific immunomodulating biologic product on health of neonatal calves. J Am Vet Med Assoc. 1998 Nov 01; 213(9):1308-11. PMID: 9810389.
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    147. Atwill ER, Harp JA, Jones T, Jardon PW, Checel S, Zylstra M. Evaluation of periparturient dairy cows and contact surfaces as a reservoir of Cryptosporidium parvum for calfhood infection. Am J Vet Res. 1998 Sep; 59(9):1116-21. PMID: 9736387.
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    148. Maldonado-Camargo S, Atwill ER, Saltijeral-Oaxaca JA, Herrera-Alonso LC. Prevalence of and risk factors for shedding of Cryptosporidium parvum in Holstein Freisian dairy calves in central México. Prev Vet Med. 1998 Aug 07; 36(2):95-107. PMID: 9762732.
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    149. Jeffrey JS, Kirk JH, Atwill ER, Cullor JS. Research notes: Prevalence of selected microbial pathogens in processed poultry waste used as dairy cattle feed. Poult Sci. 1998 Jun; 77(6):808-11. PMID: 9628527.
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    150. Pereira M das G, Atwill ER, Crawford MR, Lefebvre RB. DNA sequence similarity between California isolates of Cryptosporidium parvum. Appl Environ Microbiol. 1998 Apr; 64(4):1584-6. PMID: 9546195.
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    151. Atwill ER, Sweitzer RA, Pereira MG, Gardner IA, Van Vuren D, Boyce WM. Prevalence of and associated risk factors for shedding Cryptosporidium parvum oocysts and Giardia cysts within feral pig populations in California. Appl Environ Microbiol. 1997 Oct; 63(10):3946-9. PMID: 9327560.
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    152. Johnson E, Atwill ER, Filkins ME, Kalush J. The prevalence of shedding of Cryptosporidium and Giardia spp. based on a single fecal sample collection from each of 91 horses used for backcountry recreation. J Vet Diagn Invest. 1997 Jan; 9(1):56-60. PMID: 9087926.
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    153. Harp JA, Jardon P, Atwill ER, Zylstra M, Checel S, Goff JP, De Simone C. Field testing of prophylactic measures against Cryptosporidium parvum infection in calves in a California dairy herd. Am J Vet Res. 1996 Nov; 57(11):1586-8. PMID: 8915434.
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    154. Atwill ER, Mohammed HO. Evaluation of vaccination of horses as a strategy to control equine monocytic ehrlichiosis. J Am Vet Med Assoc. 1996 Apr 15; 208(8):1290-4. PMID: 8635974.
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    155. Atwill ER, Mohammed HO. Benefit-cost analysis of vaccination of horses as a strategy to control equine monocytic ehrlichiosis. J Am Vet Med Assoc. 1996 Apr 15; 208(8):1295-9. PMID: 8635975.
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    156. Atwill ER, Mohammed HO, Lopez JW. Evaluation of travel and use as a risk factor for seropositivity to Ehrlichia risticii in horses of New York state. Am J Vet Res. 1996 Mar; 57(3):272-7. PMID: 8669754.
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    157. Atwill ER, Mohammed HO, Lopez JW, McCulloch CE, Dubovi EJ. Cross-sectional evaluation of environmental, host, and management factors associated with risk of seropositivity to Ehrlichia risticii in horses of New York state. Am J Vet Res. 1996 Mar; 57(3):278-85. PMID: 8669755.
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    158. de la Rúa-Domènech R, Mohammed HO, Atwill ER, Cummings JF, Divers TJ, Summers BA, deLahunta A, Jackson C. Epidemiologic evidence for clustering of equine motor neuron disease in the United States. Am J Vet Res. 1995 Nov; 56(11):1433-9. PMID: 8585652.
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    159. Edward R. Atwill, Hussni O. Mohammed, Janet M. Scarlett, Charles E. McCulloch. Extending the interpretation and utility of mixed effects logistic regression models. Preventive Veterinary Medicine. 1995 Sep 1; 24(3):187-201.
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    160. Edward R. Atwill, Hussni O. Mohammed. Estimates of the annual incidence density and financial losses of equine monocytic ehrlichiosis in New York state. Preventive Veterinary Medicine. 1995 May 1; 23(1-2):41-51.
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    161. Atwill ER, Mohammed HO, de la Rua-Domenech R. Geographical variation of seropositivity to Ehrlichia risticii (equine monocytic ehrlichiosis) of horses in New York state. Equine Vet J. 1994 Mar; 26(2):143-7. PMID: 8575378.
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    162. Edward R. Atwill, Luis L. Rodriguez, Dave W. Hird, Oldemar Rojas. Environmental and host factors associated with seropositivity to New Jersey and Indiana vesicular stomatitis viruses in Costa Rican cattle. Preventive Veterinary Medicine. 1993 Mar 1; 15(4):303-314.
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    163. Atwill ER, Mohammed HO, Dubovi E, Lopez J. Retrospective evaluation of factors associated with the risk of seropositivity to Ehrlichia risticii in horses in New York State. Am J Vet Res. 1992 Oct; 53(10):1931-4. PMID: 1456543.
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