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Ronald Hedrick, PhD

Title(s)Professor Emeritus, School of Veterinary Medicine
SchoolUniversity of California, Davis
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    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. Viadanna PH, Miller-Morgan T, Peterson T, Way K, Stone DM, Marty GD, Pilarski F, Hedrick RP, Waltzek TB. Development of a PCR assay to detect cyprinid herpesvirus 1 in koi and common carp. Dis Aquat Organ. 2017 02 08; 123(1):19-27. PMID: 28177290.
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    2. Sarker S, Kallert DM, Hedrick RP, El-Matbouli M. Whirling disease revisited: pathogenesis, parasite biology and disease intervention. Dis Aquat Organ. 2015 May 21; 114(2):155-75. PMID: 25993890.
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    3. Waltzek TB, Miller DL, Gray MJ, Drecktrah B, Briggler JT, MacConnell B, Hudson C, Hopper L, Friary J, Yun SC, Malm KV, Weber ES, Hedrick RP. New disease records for hatchery-reared sturgeon. I. Expansion of frog virus 3 host range into Scaphirhynchus albus. Dis Aquat Organ. 2014 Oct 16; 111(3):219-27. PMID: 25320034.
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    4. Hedrick R, Michel C, Dorson M, Bernardet JF. Pierre de Kinkelin Pelletan (1936-2013). J Fish Dis. 2013 Dec; 36(12):975-6. PMID: 24205945.
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    5. Baxa DV, Stover A, Clifford M, Kurobe T, Teh SJ, Moyle P, Hedrick RP. Henneguya sp. in yellowfin goby Acanthogobius flavimanus from the San Francisco Estuary. Springerplus. 2013; 2:420. PMID: 24024104.
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    6. Davison AJ, Kurobe T, Gatherer D, Cunningham C, Korf I, Fukuda H, Hedrick RP, Waltzek TB. Comparative genomics of carp herpesviruses. J Virol. 2013 Mar; 87(5):2908-22. PMID: 23269803.
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    7. Hedrick RP, McDowell TS, Adkison MA, Myklebust KA, Mardones FO, Petri B. Invasion and initial replication of ultraviolet irradiated waterborne infective stages of Myxobolus cerebralis results in immunity to whirling disease in rainbow trout. Int J Parasitol. 2012 Jun; 42(7):657-66. PMID: 22580732.
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    8. Waltzek TB, Marty GD, Alfaro ME, Bennett WR, Garver KA, Haulena M, Weber ES, Hedrick RP. Systemic iridovirus from threespine stickleback Gasterosteus aculeatus represents a new megalocytivirus species (family Iridoviridae). Dis Aquat Organ. 2012 Feb 17; 98(1):41-56. PMID: 22422128.
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    9. Marcos-Lopez M, Waltzek TB, Hedrick RP, Baxa DV, Garber AF, Liston R, Johnsen E, Forward BS, Backman S, Ferguson HW. Characterization of a novel alloherpesvirus from Atlantic cod (Gadus morhua). J Vet Diagn Invest. 2012 Jan; 24(1):65-73. PMID: 22362936.
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    10. Bowen L, Kiernan JD, Eder K, Werner I, Leutenegger CM, Adkison MA, Hedrick RP, Johnson ML. Euthanization methods influence cytokine mRNA expression levels in age 0 year Oncorhynchus mykiss. J Fish Biol. 2011 Aug; 79(2):539-45. PMID: 21781109.
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    11. Batts W, Yun S, Hedrick R, Winton J. A novel member of the family Hepeviridae from cutthroat trout (Oncorhynchus clarkii). Virus Res. 2011 Jun; 158(1-2):116-23. PMID: 21458509.
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    12. Badil S, Elliott DG, Kurobe T, Hedrick RP, Clemens K, Blair M, Purcell MK. Comparative evaluation of molecular diagnostic tests for Nucleospora salmonis and prevalence in migrating juvenile salmonids from the Snake River, USA. J Aquat Anim Health. 2011 Mar; 23(1):19-29. PMID: 21699133.
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    13. Kurobe T, MacConnell E, Hudson C, McDowell TS, Mardones FO, Hedrick RP. Iridovirus infections among Missouri River sturgeon: initial characterization, transmission, and evidence for establishment of a carrier state. J Aquat Anim Health. 2011 Mar; 23(1):9-18. PMID: 21699132.
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    14. Kurobe T, Kwak KT, MacConnell E, McDowell TS, Mardones FO, Hedrick RP. Development of PCR assays to detect iridovirus infections among captive and wild populations of Missouri River sturgeon. Dis Aquat Organ. 2010 Dec 07; 93(1):31-42. PMID: 21290894.
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    15. Baerwald MR, Petersen JL, Hedrick RP, Schisler GJ, May B. A major effect quantitative trait locus for whirling disease resistance identified in rainbow trout (Oncorhynchus mykiss). Heredity (Edinb). 2011 Jun; 106(6):920-6. PMID: 21048672.
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    16. Weber ES, Blanc G, Hedrick RP. Essential veterinary education in fish health and disease: a global perspective. Rev Sci Tech. 2009 Aug; 28(2):551-8. PMID: 20128463.
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    17. Weber ES, Waltzek TB, Young DA, Twitchell EL, Gates AE, Vagelli A, Risatti GR, Hedrick RP, Frasca S. Systemic iridovirus infection in the Banggai cardinalfish (Pterapogon kauderni Koumans 1933). J Vet Diagn Invest. 2009 May; 21(3):306-20. PMID: 19407082.
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    18. Waltzek TB, Kelley GO, Alfaro ME, Kurobe T, Davison AJ, Hedrick RP. Phylogenetic relationships in the family Alloherpesviridae. Dis Aquat Organ. 2009 Apr 27; 84(3):179-94. PMID: 19565695.
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    19. Kurobe T, Marcquenski S, Hedrick RP. PCR assay for improved diagnostics of epitheliotropic disease virus (EEDV) in lake trout Salvelinus namaycush. Dis Aquat Organ. 2009 Mar 09; 84(1):17-24. PMID: 19419003.
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    20. Waltzek TB, Kurobe T, Goodwin AE, Hedrick RP. Development of a polymerase chain reaction assay to detect cyprinid herpesvirus 2 in goldfish. J Aquat Anim Health. 2009 Mar; 21(1):60-7. PMID: 19485127.
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    21. St-Hilaire S, Beevers N, Joiner C, Hedrick RP, Way K. Antibody response of two populations of common carp, Cyprinus carpio L., exposed to koi herpesvirus. J Fish Dis. 2009 Apr; 32(4):311-20. PMID: 19236553.
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    22. Eder KJ, Clifford MA, Hedrick RP, Köhler HR, Werner I. Expression of immune-regulatory genes in juvenile Chinook salmon following exposure to pesticides and infectious hematopoietic necrosis virus (IHNV). Fish Shellfish Immunol. 2008 Nov; 25(5):508-16. PMID: 18691654.
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    23. Hedrick RP, McDowell TS, Mukkatira K, MacConnell E, Petri B. Effects of freezing, drying, ultraviolet irradiation, chlorine, and quaternary ammonium treatments on the infectivity of myxospores of Myxobolus cerebralis for Tubifex tubifex. J Aquat Anim Health. 2008 Jun; 20(2):116-25. PMID: 18783133.
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    24. Kurobe T, Kelley GO, Waltzek TB, Hedrick RP. Revised phylogenetic relationships among herpesviruses isolated from sturgeons. J Aquat Anim Health. 2008 Jun; 20(2):96-102. PMID: 18783130.
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    25. Hervé-Claude LP, Carpenter TE, Hedrick RP. Risk of introducing viral hemorrhagic septicemia virus (VHSV) to the Chilean South Pacific via sardine imports from Europe. Dis Aquat Organ. 2008 Jan 24; 78(3):199-207. PMID: 18380218.
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    26. Baerwald MR, Welsh AB, Hedrick RP, May B. Discovery of genes implicated in whirling disease infection and resistance in rainbow trout using genome-wide expression profiling. BMC Genomics. 2008 Jan 24; 9:37. PMID: 18218127.
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    27. Bendorf CM, Kelley GO, Yun SC, Kurath G, Andree KB, Hedrick RP. Genetic diversity of infectious hematopoietic necrosis virus from Feather River and Lake Oroville, California, and virulence of selected isolates for Chinook salmon and rainbow trout. J Aquat Anim Health. 2007 Dec; 19(4):254-69. PMID: 18333482.
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    28. Baxa DV, Kelley GO, Mukkatira KS, Beauchamp KA, Rasmussen C, Hedrick RP. Arrested development of the myxozoan parasite, Myxobolus cerebralis, in certain populations of mitochondrial 16S lineage III Tubifex tubifex. Parasitol Res. 2008 Jan; 102(2):219-28. PMID: 17891544.
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    29. Kelley GO, Bendorf CM, Yun SC, Kurath G, Hedrick RP. Genotypes and phylogeographical relationships of infectious hematopoietic necrosis virus in California, USA. Dis Aquat Organ. 2007 Aug 13; 77(1):29-40. PMID: 17933395.
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    30. Grésoviac SJ, Baxa DV, Vivarès CP, Hedrick RP. Detection of the intranuclear microsporidium Nucleospora salmonis in naturally and experimentally exposed Chinook salmon Oncorhynchus tshawytscha by in situ hybridization. Parasitol Res. 2007 Oct; 101(5):1257-64. PMID: 17605006.
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    31. Aoki T, Hirono I, Kurokawa K, Fukuda H, Nahary R, Eldar A, Davison AJ, Waltzek TB, Bercovier H, Hedrick RP. Genome sequences of three koi herpesvirus isolates representing the expanding distribution of an emerging disease threatening koi and common carp worldwide. J Virol. 2007 May; 81(10):5058-65. PMID: 17329333.
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    32. Hedrick RP, Petri B, McDowell TS, Mukkatira K, Sealey LJ. Evaluation of a range of doses of ultraviolet irradiation to inactivate waterborne actinospore stages of Myxobolus cerebralis. Dis Aquat Organ. 2007 Feb 28; 74(2):113-8. PMID: 17432040.
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    33. Arkush KD, Edes HL, McBride AM, Adkison MA, Hedrick RP. Persistence of Piscirickettsia salmonis and detection of serum antibodies to the bacterium in white seabass Atractoscion nobilis following experimental exposure. Dis Aquat Organ. 2006 Dec 14; 73(2):131-9. PMID: 17260832.
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    34. House ML, Hedrick RP, Winton JR, Fryer JL. An Isolate of Piscirickettsia salmonis from White Seabass is Fully Virulent for Coho Salmon. J Aquat Anim Health. 2006 Dec; 18(4):252-6. PMID: 26599161.
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    35. Ostland VE, Stannard JA, Creek JJ, Hedrick RP, Ferguson HW, Carlberg JM, Westerman ME. Aquatic Francisella-like bacterium associated with mortality of intensively cultured hybrid striped bass Morone chrysops x M. saxatilis. Dis Aquat Organ. 2006 Oct 17; 72(2):135-45. PMID: 17140136.
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    36. Arkush KD, Mendonca HL, McBride AM, Yun S, McDowell TS, Hedrick RP. Effects of temperature on infectivity and of commercial freezing on survival of the North American strain of viral hemorrhagic septicemia virus (VHSV). Dis Aquat Organ. 2006 Apr 06; 69(2-3):145-51. PMID: 16724558.
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    37. Kelley GO, Adkison MA, Zagmutt-Vergara FJ, Leutenegger CM, Bethel JW, Myklebust KA, McDowell TS, Hedrick RP. Evaluation of quantitative real-time PCR for rapid assessments of the exposure of sentinel fish to Myxobolus cerebralis. Parasitol Res. 2006 Sep; 99(4):328-35. PMID: 16555100.
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    38. Ciulli S, Gallardi D, Scagliarini A, Battilani M, Hedrick RP, Prosperi S. Temperature-dependency of Betanodavirus infection in SSN-1 cell line. Dis Aquat Organ. 2006 Mar 02; 68(3):261-5. PMID: 16610592.
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    39. Beauchamp KA, El-Matbouli M, Gay M, Georgiadis MP, Nehring RB, Hedrick RP. The effect of cohabitation of Tubifex tubifex (Oligochaeta: Tubificidae) populations on infections to Myxobolus cerebralis (Myxozoa: Myxobolidae). J Invertebr Pathol. 2006 Jan; 91(1):1-8. PMID: 16321396.
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    40. 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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    41. Braid BA, Moore JD, Robbins TT, Hedrick RP, Tjeerdema RS, Friedman CS. Health and survival of red abalone, Haliotis rufescens, under varying temperature, food supply, and exposure to the agent of withering syndrome. J Invertebr Pathol. 2005 Jul; 89(3):219-31. PMID: 16039668.
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    42. Clifford MA, Eder KJ, Werner I, Hedrick RP. Synergistic effects of esfenvalerate and infectious hematopoietic necrosis virus on juvenile chinook salmon mortality. Environ Toxicol Chem. 2005 Jul; 24(7):1766-72. PMID: 16050595.
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    43. Waltzek TB, Kelley GO, Stone DM, Way K, Hanson L, Fukuda H, Hirono I, Aoki T, Davison AJ, Hedrick RP. Koi herpesvirus represents a third cyprinid herpesvirus (CyHV-3) in the family Herpesviridae. J Gen Virol. 2005 Jun; 86(Pt 6):1659-67. PMID: 15914843.
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    44. Zagmutt-Vergara FJ, Carpenter TE, Farver TB, Hedrick RP. Spatial and temporal variations in sea lice (Copepoda: Caligidae) infestations of three salmonid species farmed in net pens in southern Chile. Dis Aquat Organ. 2005 Apr 18; 64(2):163-73. PMID: 15918480.
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    45. Bercovier H, Fishman Y, Nahary R, Sinai S, Zlotkin A, Eyngor M, Gilad O, Eldar A, Hedrick RP. Cloning of the koi herpesvirus (KHV) gene encoding thymidine kinase and its use for a highly sensitive PCR based diagnosis. BMC Microbiol. 2005 Mar 17; 5:13. PMID: 15774009.
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    46. 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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    47. Arkush KD, McBride AM, Mendonca HL, Okihiro MS, Andree KB, Marshall S, Henriquez V, Hedrick RP. Genetic characterization and experimental pathogenesis of Piscirickettsia salmonis isolated from white seabass Atractoscion nobilis. Dis Aquat Organ. 2005 Feb 28; 63(2-3):139-49. PMID: 15819429.
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    48. Beauchamp KA, Kelley GO, Nehring RB, Hedrick RP. The severity of whirling disease among wild trout corresponds to the differences in genetic composition of Tubifex tubifex populations in central Colorado. J Parasitol. 2005 Feb; 91(1):53-60. PMID: 15856872.
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    49. Kelley GO, Beauchamp KA, Hedrick RP. Phylogenetic comparison of the myxosporea based on an actin cDNA isolated from Myxobolus cerebralis. J Eukaryot Microbiol. 2004 Nov-Dec; 51(6):660-3. PMID: 15666723.
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    50. Gilad O, Yun S, Zagmutt-Vergara FJ, Leutenegger CM, Bercovier H, Hedrick RP. Concentrations of a Koi herpesvirus (KHV) in tissues of experimentally infected Cyprinus carpio koi as assessed by real-time TaqMan PCR. Dis Aquat Organ. 2004 Sep 08; 60(3):179-87. PMID: 15521316.
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    51. Whipps CM, El-Matbouli M, Hedrick RP, Blazer V, Kent ML. Myxobolus cerebralis internal transcribed spacer 1 (ITS-1) sequences support recent spread of the parasite to North America and within Europe. Dis Aquat Organ. 2004 Aug 09; 60(2):105-8. PMID: 15460854.
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    52. Tops S, Baxa DV, McDowell TS, Hedrick RP, Okamura B. Evaluation of malacosporean life cycles through transmission studies. Dis Aquat Organ. 2004 Aug 09; 60(2):109-21. PMID: 15460855.
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    53. Ciulli S, Ostanello F, Battilani M, Prosperi S, Hedrick RP. Effect of temperature on Betanodavirus infection in SSN-1 cell line. Vet Res Commun. 2004 Aug; 28 Suppl 1:283-6. PMID: 15372978.
      View in: PubMed
    54. Arkush KD, Mendonca HL, McBride AM, Hedrick RP. Susceptibility of captive adult winter-run Chinook salmon Oncorhynchus tshawytscha to waterborne exposures with infectious hematopoietic necrosis virus (IHNV). Dis Aquat Organ. 2004 Jun 11; 59(3):211-6. PMID: 15264717.
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    55. Kelley GO, Zagmutt-Vergara FJ, Leutenegger CM, Adkison MA, Baxa DV, Hedrick RP. Identification of a serine protease gene expressed by Myxobolus cerebralis during development in rainbow trout Oncorhynchus mykiss. Dis Aquat Organ. 2004 Jun 11; 59(3):235-48. PMID: 15264720.
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    56. Kelley GO, Zagmutt-Vergara FJ, Leutenegger CM, Myklebust KA, Adkison MA, McDowell TS, Marty GD, Kahler AL, Bush AL, Gardner IA, Hedrick RP. Evaluation of five diagnostic methods for the detection and quantification of Myxobolus cerebralis. J Vet Diagn Invest. 2004 May; 16(3):202-11. PMID: 15152834.
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    57. Hedrick RP, Baxa DV, De Kinkelin P, Okamura B. Malacosporean-like spores in urine of rainbow trout react with antibody and DNA probes to Tetracapsuloides bryosalmonae. Parasitol Res. 2004 Jan; 92(1):81-8. PMID: 14610667.
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    58. Arkush KD, Mendoza L, Adkison MA, Hedrick RP. Observations on the life stages of Sphaerothecum destruens n. g., n. sp., a mesomycetozoean fish pathogen formerly referred to as the rosette agent [correction]. J Eukaryot Microbiol. 2003 Nov-Dec; 50(6):430-8. PMID: 14733435.
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    59. Bahri S, Andree KB, Hedrick RP. Morphological and phylogenetic studies of marine Myxobolus spp. from mullet in Ichkeul Lake, Tunisia. J Eukaryot Microbiol. 2003 Nov-Dec; 50(6):463-70. PMID: 14733438.
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    60. Kelley GO, Adkison MA, Leutenegger CM, Hedrick RP. Myxobolus cerebralis: identification of a cathepsin Z-like protease gene (MyxCP-1) expressed during parasite development in rainbow trout, Oncorhynchus mykiss. Exp Parasitol. 2003 Nov-Dec; 105(3-4):201-10. PMID: 14990313.
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    61. Gilad O, Yun S, Adkison MA, Way K, Willits NH, Bercovier H, Hedrick RP. Molecular comparison of isolates of an emerging fish pathogen, koi herpesvirus, and the effect of water temperature on mortality of experimentally infected koi. J Gen Virol. 2003 Oct; 84(Pt 10):2661-7. PMID: 13679599.
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    62. Hedrick RP, Batts WN, Yun S, Traxler GS, Kaufman J, Winton JR. Host and geographic range extensions of the North American strain of viral hemorrhagic septicemia virus. Dis Aquat Organ. 2003 Aug 04; 55(3):211-20. PMID: 13677507.
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    63. Hedrick RP, McDowelll TS, Gilad O, Adkison M, Bovo G. Systemic herpes-like virus in catfish Ictalurus melas (Italy) differs from Ictalurid herpesvirus 1 (North America). Dis Aquat Organ. 2003 Jul 08; 55(2):85-92. PMID: 12911055.
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    64. Hedrick RP, McDowell TS, Marty GD, Fosgate GT, Mukkatira K, Myklebust K, El-Matbouli M. Susceptibility of two strains of rainbow trout (one with suspected resistance to whirling disease) to Myxobolus cerebralis infection. Dis Aquat Organ. 2003 Jun 20; 55(1):37-44. PMID: 12887253.
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    65. Fryer JL, Hedrick RP. Piscirickettsia salmonis: a Gram-negative intracellular bacterial pathogen of fish. J Fish Dis. 2003 05; 26(5):251-62. PMID: 12962234.
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    66. Raverty S, Hedrick R, Henry J, Saksida S. Diagnosis of sturgeon iridovirus infection in farmed white sturgeon in British Columbia. Can Vet J. 2003 Apr; 44(4):327-8. PMID: 12715987.
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    67. Beauchamp KA, Gay M, Kelley GO, El-Matbouli M, Kathman RD, Nehring RB, Hedrick RP. Prevalence and susceptibility of infection to Myxobolus cerebralis, and genetic differences among populations of Tubifex tubifex. Dis Aquat Organ. 2002 Aug 29; 51(2):113-21. PMID: 12363083.
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    68. Gilad O, Yun S, Andree KB, Adkison MA, Zlotkin A, Bercovier H, Eldar A, Hedrick RP. Initial characteristics of koi herpesvirus and development of a polymerase chain reaction assay to detect the virus in koi, Cyprinus carpio koi. Dis Aquat Organ. 2002 Mar 11; 48(2):101-8. PMID: 12005231.
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    69. Hird DH, King L, Salman M, Werge R. Crisis of lost opportunity-results of a symposium on challenges for animal population health education, davis, california, may 9-11, 2002. J Vet Med Educ. 2002; 29(4):205-9. PMID: 12717635.
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    70. Kent ML, Andree KB, Bartholomew JL, El-Matbouli M, Desser SS, Devlin RH, Feist SW, Hedrick RP, Hoffmann RW, Khattra J, Hallett SL, Lester RJ, Longshaw M, Palenzeula O, Siddall ME, Xiao C. Recent advances in our knowledge of the Myxozoa. J Eukaryot Microbiol. 2001 Jul-Aug; 48(4):395-413. PMID: 11456316.
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    71. Beauchamp KA, Kathman RD, McDowell TS, Hedrick RP. Molecular phylogeny of tubificid oligochaetes with special emphasis on Tubifex tubifex (Tubificidae). Mol Phylogenet Evol. 2001 May; 19(2):216-24. PMID: 11341804.
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    72. Georgiadis MP, Gardner IA, Hedrick RP. The role of epidemiology in the prevention, diagnosis, and control of infectious diseases of fish. Prev Vet Med. 2001 Mar 29; 48(4):287-302. PMID: 11259821.
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    73. Shum BP, Guethlein L, Flodin LR, Adkison MA, Hedrick RP, Nehring RB, Stet RJ, Secombes C, Parham P. Modes of salmonid MHC class I and II evolution differ from the primate paradigm. J Immunol. 2001 Mar 01; 166(5):3297-308. PMID: 11207285.
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    74. Chen MF, Yun S, Marty GD, McDowell TS, House ML, Appersen JA, Guenther TA, Arkush KD, Hedrick RP. A Piscirickettsia salmonis-like bacterium associated with mortality of white seabass Atractoscion nobilis. Dis Aquat Organ. 2000 Nov 14; 43(2):117-26. PMID: 11145452.
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    75. Georgiadis MP, Hedrick RP, Johnson WO, Yun S, Gardner IA. Risk factors for outbreaks of disease attributable to white sturgeon iridovirus and white sturgeon herpesvirus-2 at a commercial sturgeon farm. Am J Vet Res. 2000 Oct; 61(10):1232-40. PMID: 11039553.
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    76. Pusterla N, Johnson E, Chae J, DeRock E, Willis M, Hedrick RP, Madigan JE. Molecular detection of an Ehrlichia-like agent in rainbow trout (Oncorhynchus mykiss) from Northern California. Vet Parasitol. 2000 Oct 01; 92(3):199-207. PMID: 10962157.
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    77. Hedrick RP, McDowell TS, Marty GD, Mukkatira K, Antonio DB, Andree KB, Bukhari Z, Clancy T. Ultraviolet irradiation inactivates the waterborne infective stages of Myxobolus cerebralis: a treatment for hatchery water supplies. Dis Aquat Organ. 2000 Aug 10; 42(1):53-9. PMID: 10986645.
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    78. Khattra JS, Gresoviac SJ, Kent ML, Myers MS, Hedrick RP, Devlin RH. Molecular detection and phylogenetic placement of a microsporidian from English sole (Pleuronectes vetulus) affected by X-cell pseudotumors. J Parasitol. 2000 Aug; 86(4):867-71. PMID: 10958476.
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    79. Gresoviac SJ, Khattra JS, Nadler SA, Kent ML, Devlin RH, Vivares CP, De La Fuente E, Hedrick RP. Comparison of small subunit ribosomal RNA gene and internal transcribed spacer sequences among isolates of the intranuclear microsporidian Nucleospora salmonis. J Eukaryot Microbiol. 2000 Jul-Aug; 47(4):379-87. PMID: 11140452.
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    80. Friedman CS, Andree KB, Beauchamp KA, Moore JD, Robbins TT, Shields JD, Hedrick RP. 'Candidatus Xenohaliotis californiensis', a newly described pathogen of abalone, Haliotis spp., along the west coast of North America. Int J Syst Evol Microbiol. 2000 Mar; 50 Pt 2:847-855. PMID: 10758896.
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    81. Hedrick RP, Gilad O, Yun S, Spangenberg JV, Marty GD, Nordhausen RW, Kebus MJ, Bercovier H, Eldar A. A Herpesvirus Associated with Mass Mortality of Juvenile and Adult Koi, a Strain of Common Carp. J Aquat Anim Health. 2000 Mar; 12(1):44-57. PMID: 28880775.
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    82. Georgiadis MP, Hedrick RP, Johnson WO, Gardner IA. Mortality and recovery of runt white sturgeon (Acipenser transmontanus) in a commercial farm in California, USA. Prev Vet Med. 2000 Feb 29; 43(4):269-81. PMID: 10718495.
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    83. Georgiadis MP, Hedrick RP, Johnson WO, Gardner IA. Growth of white sturgeon (Acipenser transmontanus) following recovery from the stunted stage in a commercial farm in California, USA. Prev Vet Med. 2000 Feb 29; 43(4):283-91. PMID: 10718496.
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    84. Kent ML, Khattra J, Hedrick RP, Devlin RH. Tetracapsula renicola n. sp. (Myxozoa : Saccosporidae); the PKX myxozoan--the cause of proliferative kidney disease of salmonid fishes. J Parasitol. 2000 Feb; 86(1):103-11. PMID: 10701572.
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    85. Antonio DB, Andree KB, Moore JD, Friedman CS, Hedrick RP. Detection of Rickettsiales-like prokaryotes by in situ hybridization in black abalone, Haliotis cracherodii, with withering syndrome. J Invertebr Pathol. 2000 Feb; 75(2):180-2. PMID: 10772333.
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    86. Davis CR, Marty GD, Adkison MA, Freiberg EF, Hedrick RP. Association of plasma IgM with body size, histopathologic changes, and plasma chemistries in adult Pacific herring Clupea pallasi. Dis Aquat Organ. 1999 Nov 08; 38(2):125-33. PMID: 10598283.
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    87. Antonio DB, El-Matbouli M, Hedrick RP. Detection of early developmental stages of Myxobolus cerebralis in fish and tubificid oligochaete hosts by in situ hybridization. Parasitol Res. 1999 Nov; 85(11):942-4. PMID: 10540957.
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    88. Hedrick RP, McDowell TS, Gay M, Marty GD, Georgiadis MP, MacConnell E. Comparative susceptibility of rainbow trout Oncorhynchus mykiss and brown trout Salmo trutta to Myxobolus cerebralis, the cause of salmonid whirling disease. Dis Aquat Organ. 1999 Sep 14; 37(3):173-83. PMID: 10546047.
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    89. Shum BP, Rajalingam R, Magor KE, Azumi K, Carr WH, Dixon B, Stet RJ, Adkison MA, Hedrick RP, Parham P. A divergent non-classical class I gene conserved in salmonids. Immunogenetics. 1999 Jun; 49(6):479-90. PMID: 10380691.
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    90. Michel C, Antonio D, Hedrick RP. Production of viable cultures of Flavobacterium psychrophilum: approach and control. Res Microbiol. 1999 Jun; 150(5):351-8. PMID: 10422696.
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    91. Andree KB, el-Matbouli M, Hoffman RW, Hedrick RP. Comparison of 18S and ITS-1 rDNA sequences of selected geographic isolates of Myxobolus cerebralis. Int J Parasitol. 1999 May; 29(5):771-5. PMID: 10404274.
      View in: PubMed
    92. El-Matbouli M, McDowell TS, Antonio DB, Andree KB, Hedrick RP. Effect of water temperature on the development, release and survival of the triactinomyxon stage of Myxobolus cerebralis in its oligochaete host. Int J Parasitol. 1999 Apr; 29(4):627-41. PMID: 10428640.
      View in: PubMed
    93. Frasca S, Linfert DR, Tsongalis GJ, Gorton TS, Garmendia AE, Hedrick RP, West AB, Van Kruiningen HJ. Molecular characterization of the myxosporean associated with parasitic encephalitis of farmed Atlantic salmon Salmo salar in Ireland. Dis Aquat Organ. 1999 Feb 26; 35(3):221-33. PMID: 10228877.
      View in: PubMed
    94. Andree KB, Székely C, Molnár K, Gresoviac SJ, Hedrick RP. Relationships among members of the genus Myxobolus (Myxozoa: Bilvalvidae) based on small subunit ribosomal DNA sequences. J Parasitol. 1999 Feb; 85(1):68-74. PMID: 10207366.
      View in: PubMed
    95. el-Matbouli M, Hoffmann RW, Schoel H, McDowell TS, Hedrick RP. Whirling disease: host specificity and interaction between the actinosporean stage of Myxobolus cerebralis and rainbow trout Oncorhynchus mykiss. Dis Aquat Organ. 1999 Jan 07; 35(1):1-12. PMID: 10073310.
      View in: PubMed
    96. Dixon B, Shum B, Adams EJ, Magor KE, Hedrick RP, Muir DG, Parham P. CK-1, a putative chemokine of rainbow trout (Oncorhynchus mykiss). Immunol Rev. 1998 Dec; 166:341-8. PMID: 9914924.
      View in: PubMed
    97. Hedrick RP, el-Matbouli M, Adkison MA, MacConnell E. Whirling disease: re-emergence among wild trout. Immunol Rev. 1998 Dec; 166:365-76. PMID: 9914926.
      View in: PubMed
    98. Andree KB, MacConnell E, Hedrick RP. A nested polymerase chain reaction for the detection of genomic DNA of Myxobolus cerebralis in rainbow trout Oncorhynchus mykiss. Dis Aquat Organ. 1998 Oct 08; 34(2):145-54. PMID: 9828408.
      View in: PubMed
    99. Watson LR, Groff JM, Hedrick RP. Replication and pathogenesis of white sturgeon iridovirus (WSIV) in experimentally infected white sturgeon Acipenser transmontanus juveniles and sturgeon cell lines. Dis Aquat Organ. 1998 Apr 03; 32(3):173-84. PMID: 9676244.
      View in: PubMed
    100. Friedman CS, Beaman BL, Chun J, Goodfellow M, Gee A, Hedrick RP. Nocardia crassostreae sp. nov., the causal agent of nocardiosis in Pacific oysters. Int J Syst Bacteriol. 1998 Jan; 48 Pt 1:237-46. PMID: 9542093.
      View in: PubMed
    101. Andree KB, Gresoviac SJ, Hedrick RP. Small subunit ribosomal RNA sequences unite alternate actinosporean and myxosporean stages of Myxobolus cerebralis the causative agent of whirling disease in salmonid fish. J Eukaryot Microbiol. 1997 May-Jun; 44(3):208-15. PMID: 9183708.
      View in: PubMed
    102. Mao J, Hedrick RP, Chinchar VG. Molecular characterization, sequence analysis, and taxonomic position of newly isolated fish iridoviruses. Virology. 1997 Mar 03; 229(1):212-20. PMID: 9123863.
      View in: PubMed
    103. Adkison MA, Basurco B, Hedrick RP. Humoral immunoglobulins of the white sturgeon, Acipenser transmontanus: partial characterization of and recognition with monoclonal antibodies. Dev Comp Immunol. 1996 Jul-Aug; 20(4):285-98. PMID: 8915630.
      View in: PubMed
    104. Hedrick RP. Movement of pathogens with the international trade of live fish: problems and solutions. Rev Sci Tech. 1996 Jun; 15(2):523-31. PMID: 8890378.
      View in: PubMed
    105. Desportes-Livage I, Chilmonczyk S, Hedrick R, Ombrouck C, Monge D, Maiga I, Gentilini M. Comparative development of two microsporidian species: Enterocytozoon bieneusi and Enterocytozoon salmonis, reported in AIDS patients and salmonid fish, respectively. J Eukaryot Microbiol. 1996 Jan-Feb; 43(1):49-60. PMID: 8563709.
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    106. Wongtavatchai J, Conrad PA, Hedrick RP. Effect of the microsporidian Enterocytozoon salmonis on the immune response of chinook salmon. Vet Immunol Immunopathol. 1995 Oct; 48(3-4):367-74. PMID: 8578694.
      View in: PubMed
    107. Wongtavatchai J, Conrad PA, Hedrick RP. In vitro characteristics of the microsporidian: Enterocytozoon salmonis. J Eukaryot Microbiol. 1995 Jul-Aug; 42(4):401-5. PMID: 7620465.
      View in: PubMed
    108. Hedrick RP, McDowell TS. Properties of iridoviruses from ornamental fish. Vet Res. 1995; 26(5-6):423-7. PMID: 8581016.
      View in: PubMed
    109. Baxa-Antonio D, Groff JM, Hedrick RP. Experimental horizontal transmission of Enterocytozoon salmonis to chinook salmon, Oncorhynchus tshawytscha. J Protozool. 1992 Nov-Dec; 39(6):699-702. PMID: 1453359.
      View in: PubMed
    110. Friedman CS, Cloney DF, Manzer D, Hedrick RP. Haplosporidiosis of the Pacific oyster, Crassostrea gigas. J Invertebr Pathol. 1991 Nov; 58(3):367-72. PMID: 1787325.
      View in: PubMed
    111. Chilmonczyk S, Cox WT, Hedrick RP. Enterocytozoon salmonis n. sp.: an intranuclear microsporidium from salmonid fish. J Protozool. 1991 May-Jun; 38(3):264-9. PMID: 1880764.
      View in: PubMed
    112. Groff JM, Mughannam A, McDowell TS, Wong A, Dykstra MJ, Frye FL, Hedrick RP. An epizootic of cutaneous zygomycosis in cultured dwarf African clawed frogs (Hymenochirus curtipes) due to Basidiobolus ranarum. J Med Vet Mycol. 1991; 29(4):215-23. PMID: 1941429.
      View in: PubMed
    113. Domínguez J, Babín M, Sánchez C, Hedrick RP. Rapid serotyping of infectious pancreatic necrosis virus by one-step enzyme-linked immunosorbent assay using monoclonal antibodies. J Virol Methods. 1991 Jan; 31(1):93-103. PMID: 1707894.
      View in: PubMed
    114. Hedrick RP, Groff JM, McDowell TS. Gill sphaerosporosis in goldfish (Carassius auratus). J Wildl Dis. 1990 Oct; 26(4):558-60. PMID: 2250337.
      View in: PubMed
    115. Hedrick RP, Groff JM, Okihiro MS, McDowell TS. Herpesviruses detected in papillomatous skin growths of koi carp (Cyprinus carpio). J Wildl Dis. 1990 Oct; 26(4):578-81. PMID: 2174469.
      View in: PubMed
    116. Hedrick RP, McDowell T, Groff JM. Sphaerospora ictaluri n. sp. (Myxosporea: Sphaerosphoridae) observed in the kidney of channel catfish, Ictalurus punctatus rafinesque. J Protozool. 1990 Mar-Apr; 37(2):107-12. PMID: 2319486.
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    117. Laurén DJ, Wishkovsky A, Groff JM, Hedrick RP, Hinton DE. Toxicity and pharmacokinetics of the antibiotic fumagillin in yearling rainbow trout (Salmo gairdneri). Toxicol Appl Pharmacol. 1989 May; 98(3):444-53. PMID: 2718173.
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    118. Fryer JL, Hedrick RP, Park JW, Hah YC. Isolation of Aeromonas salmonicida from masu salmon in the Republic of Korea. J Wildl Dis. 1988 Apr; 24(2):364-5. PMID: 3373645.
      View in: PubMed
    119. Hedrick RP, Kent ML, Toth RJ, Morrison JK. Fish infected with Sphaerospora spp. Thélohan (Myxosporea) from waters enzootic for proliferative kidney disease of salmonids. J Protozool. 1988 Feb; 35(1):13-8. PMID: 3367317.
      View in: PubMed
    120. Hedrick RP, McDowell T, Groff J. Mycobacteriosis in cultured striped bass from California. J Wildl Dis. 1987 Jul; 23(3):391-5. PMID: 3625895.
      View in: PubMed
    121. Kent ML, Hedrick RP. Effects of cortisol implants on the PKX myxosporean causing proliferative kidney disease in rainbow trout, Salmo gairdneri. J Parasitol. 1987 Jun; 73(3):455-61. PMID: 3598795.
      View in: PubMed
    122. Winton JR, Lannan CN, Fryer JL, Hedrick RP, Meyers TR, Plumb JA, Yamamoto T. Morphological and biochemical properties of four members of a novel group of reoviruses isolated from aquatic animals. J Gen Virol. 1987 Feb; 68 ( Pt 2):353-64. PMID: 3819694.
      View in: PubMed
    123. Duhamel GE, Kent ML, Dybdal NO, Hedrick RP. Henneguya exilis Kudo associated with granulomatous branchitis of channel catfish Ictalurus punctatus (Rafinesque). Vet Pathol. 1986 Jul; 23(4):354-61. PMID: 3092431.
      View in: PubMed
    124. Kent ML, Hedrick RP. PKX, the causative agent of proliferative kidney disease (PKD) in Pacific salmonid fishes and its affinities with the Myxozoa. J Protozool. 1985 May; 32(2):254-60. PMID: 4009511.
      View in: PubMed
    125. Hedrick RP, Rosemark R, Aronstein D, Winton JR, McDowell T, Amend DF. Characteristics of a new reovirus from channel catfish (Ictalurus punctatus). J Gen Virol. 1984 Sep; 65 ( Pt 9):1527-34. PMID: 6470683.
      View in: PubMed
    126. Hedrick RP, Okamoto N, Sano T, Fryer JL. Biochemical characterization of eel virus european. J Gen Virol. 1983 Jun; 64 (Pt 6):1421-6. PMID: 6854276.
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