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Photo: Patricia Ann Conrad

Patricia Ann Conrad- AS, BS, DVM, PhD
Pathology, Microbiology & Immunology

5311 Vet Med 3A
Davis, CA 95616

+1 530 752 7210


Research Focus

  • One Health research approach to global human, animal (wild & domestic) and environmental health problems
  • Antigenic and molecular characterization of protozoal parasites
  • Mechanisms of pathogenesis in hemopprotozoal and coccidial parasites
  • Biology, ecology and epidemiology of Neospora, Toxoplasma, Babesia and Sarcocystis spp.parasites
  • Waterborne zoonotic protozoal and bacterial pathogens in watershed and marine ecosystems
  • Development and evaluation of innovative educational approaches to promote inter-professional learning and engagement, particularly relating to global health

Specialty Focus

Protozoology; Global Health


1975 AS Preveterinary Medicine, Summa Cum Laude, Otero Junior College, La Junta, Colorado
1977 BS Veterinary Science, Colorado State University, Fort Collins, Colorado
1980 DVM Veterinary Medicine, Colorado State University, Fort Collins, Colorado
1984 PhD Protozoology/Tropical Animal Health, University of Edinburgh, Edinburgh, Scotland, United Kingdom

Honors and Awards

Patent Bovine Neospora Isolates and their Uses US Patent No. 5,707,617 issued 1/13/98
Patent Identification, Characterization & Expression of Neospora Recombinant Gene Fragments Encoding Immunodominant Antigens, US patent Nos. 5,889,166 (3/30/99),6,376,196(4/23/02), 6,716,423 (4/06/04), 6,777,192 (8/17/04), 7,056,501 (6/6/06)
Patent Recombinant Neospora Antigens and their uses, Patent No. 7,056,501 issued 6/06/06
Patent Equine Neospora Isolate, US patent No. 6,071,737, issued 6/06/00
2012 R G Thomson Lecturer, Atlantic Veterinary College, Prince Edward Island
2012 American Society of Microbiology Division Z Lecturer
2012 Elected to Fellowship in the American Academy of Microbiology
2011 Elected to the Institute of Medicine of the National Academies (July 1, 2015 the IOM was renamed the National Academy of Medicine)
2008-2010 Journal of Parasitology (most cited publication)
2006 Norman Levine Lecturship, University of Illinois
2004 Aldo Leopold Leadership Fellowship
2003 Oscar W. Schalm Lectureship
2002 Manuscript #99 was selected by American College of Zoological Medicine as Best Manuscipt of 2002
2001 Graduate Student, Dr. Melissa Miller (Checkowitz) was awarded Graduate Student Research Award for the Wildlife Disease Association
1999 Carl J. Norden Distinguished Teaching Award
1998 Pfizer Award for Research Excellence
1994 Presidential Symposium Speaker for American Association of Veterinary Parasitologists and American Veterinary Medical Association
1993 National Institutes of Health FIRST Award
1992 Charles Davis Foundation Journal Scholarship Award
1986 Cold Spring Harbor Laboratory Scholarship
1980-1983 Marshall Aid Commemoration Commission Scholarship

Active Research Grants

Co-Investigator, PREDICT-2: Identifying and monitoring "Hot Spots" for evolution, spillover, amplification and spread of zoonotic viruses with pandemic potential, Mazet J (Principal Investigator), United States Agency for International Development (USAID)

Most Recent 10 Publications

  • Link Icon 2015 Carlson-Bremer D, Colegrove KM, Gulland FM, Conrad PA, Mazet JA, Johnson CK Epidemiology and pathology of Toxoplasma gondii in free-ranging California sea lions (Zalophus californianus). J Wildl Dis,
  • Link Icon 2015 Winer JN, Nakagawa K, Conrad, PA, Brown L, Wilkes M Evaluation of medical and veterinary students' attitudes toward a one health inter-professional curricular exercise. * * * NEED TO PROVIDE PDF COPY OF PAPER * * * J Interprof Care,
  • Link Icon 2014 Pusterla N, Mackie S, Packham A, Conrad PA Serological investigation of transplacental infection with Neospora hughesi and Sarcocystis neurona in broodmares Vet J,
  • Link Icon 2014 Adell AD, Smith WA, Shapiro K, Melli A, Conrad PA Molecular epidemiology of Cryptosporidium spp. and Giardia spp. in mussels (Mytilus californianus) and California sea lions (Zalophus californianus) from Central California. Appl Environ Microbiol,
  • Link Icon 2014 Shapiro K, Krusor C, Mazzillo FF, Conrad PA, Largier JL, Mazet JA, Silver MW Aquatic polymers can drive pathogen transmission in coastal ecosystems. Proc Biol Sci,
  • Link Icon 2014 Greig DJ, Gulland FM, Smith WA, Conrad PA, Field CL, Fleetwood M, Harvey JT, Ip HS, Jang S, Packham A, Wheeler E, Hall AJ Surveillance for zoonotic and selected pathogens in harbor seals Phoca vitulina from central California. Dis Aquat Organ,
  • Link Icon 2014 Daniels ME, Hogan, J, Smith WA, Oates SC, Miller MA, Hardin, D, Shapiro K, Huertos ML, Conrad PA, Dominik C, Watson FG Estimating environmental conditions affecting protozoal pathogen removal in surface water wetland systems using a multi-scale, model-based approach. Sci Total Environ,
  • Link Icon 2014 Courtenay M, Wilkes M, Conrad PA, Ragione, RL, Reeves, S One Health: The importance of education and the impact of interprofessional interventions. Vet J,
  • Link Icon 2014 Shender LA, De Los Santos M, Montgomery JM, Conrad PA, Ghersi BM, Razuri H, Lescano AG, Mazet JA Native rodent species are unlikely sources of infection for Leishmania (Viannia) braziliensis along the transoceanic highway in Madre de Dios, Peru. PLoS One,
  • Link Icon 2014 Courtenay M, Conrad P, Wilkes M, La Ragione R, Fitzpatrick N Interprofessional initiatives between the human health professions and veterinary medical students: a scoping review. * * * NEED PDF COPY OF PAPER * * * J Interprofession Care,

Most Recent 5 Book Chapters

2015 Fritz HM, Conrad PA: Part 5-06. Role of cats in Toxoplasma transmission and disease, Beugnet F, Halos L, (ed), Parasites & Vector Borne Diseases of Cats, Lyon, France. 350-63.

2008 Brewer CA, Berkowitz AR, Conrad PA, Patz JA, Porter J, Waterman M: Educating about Infectious disease ecology, Ostfeld RS, Keesing F, Eviner VT, (ed), Infectious Disease Ecology: Effects of Ecosystems on Disease and of Disease on Ecosystems, Princeton, NJ. 448-68.

2001 Kjemtrup AM, Conrad PA: Emerging perspectives on human babesiosis, Scheld WM, Craig WA, Hughes JM, (ed), Emerging Infections, Washington DC. 175-95.

1995 Courtney C, Conrad PA, Boyce WB, Barlough J: Internal parasites, Seigal M, Barlough J, (ed), UC Davis Book of Dogs, New York, NY. 387-407.

1994 Anderson ML, Barr BC, Conrad PA: Protozoal causes of reproductive failure in domestic ruminants, Miller RB, (ed), Vet Clin N Am, Fd Anim Pract Diagn Abortion. 439-61.