William K. Reisen, Ph.D.

William Reisen

Professor, Department of Pathology, Microbiology and Immunology

School of Veterinary Medicine, UC Davis

Research Entomologist, Center for Vectorborne Diseases
Office: Center for Vectorborne Diseases, Old Davis Road, Davis, CA 95616
Phone: (530) 752-0124
E-mail: wkreisen@ucdavis.edu





Research Focus:

Biography and Curriculum Vitae

William Reisen Research entomologist William K. Reisen is a full-time faculty member with the UC Davis Center for Vectorborne Diseases (CVEC) and an adjunct professor in the Department of Pathology, Microbiology and Immunology, School of Veterinary Medicine, UC Davis.


At CVEC, Dr. Reisen directs the Arbovirus Research Program and participates in the Environmental Assessment and Information Technology Program (EAIT).


Expertise: Mosquito and vectorborne disease ecology


Research focus: Population ecology of mosquitoes and their vertebrate hosts in relation to the epidemiology, surveillance and control of mosquito-borne pathogens


Grants: He receives grants from the National Institutes of Health, National Oceanographic and Atmospheric Administration, Centers for Disease Control and Prevention, NASA, and the UC Mosquito Research Program, and support from the Coachella Valley, Greater Los Angeles County, Kern, and Sacramento-Yolo Mosquito and Vector Control Districts (MVCD).


Contact Information:
E-mail: wkreisen@ucdavis.edu
Office: CVEC, Old Davis Road, One Shields Ave., Davis, CA 95616
Phone: (530) 752-0124
Fax: (530) 754-6360



  • B.S. in agriculture (entomology - plant pathology), University of Delaware, Newark
  • M.S. in zoology from Clemson University, Clemson, S. C. His supporting field: Experimental Statistics. His thesis: “Some ecological relationships of the organic drift in Prater’s Creek, Pickens County, South Carolina.”
  • Ph.D. in zoology from the University of Oklahoma, Norman, Okla. Supporting fields: medical microbiology, ecology. Dissertation: “The ecology of larval black flies (Diptera: Simuliidae) in a south central Oklahoma stream.” Areas of academic concentration: entomology, plant and animal ecology, microbiology including plant pathology, experimental statistics (including computer science), and chemistry.


Professional Experience:

1967-1968: Research assistant, Clemson University; Duties: Monitoring organochloride insecticide residues in fish and aquatic insects.

1968: Teaching Assistant, Clemson University; Course taught: Animal Ecology; Research: Stream ecology and fish feeding behavior.

1969-1971: Captain, U.S. Air Force; Assignments: Epidemiological Laboratory, Lackland AFB, Texas, and 5 th Epidemiological Flight, Manila and 1st Medical Service Wing, Clark AB, Republic of the Philippines; Duties: Vector-borne disease surveillance and control programs on USAF Bases in Pacific Air Command. Temporary duty in Japan, Taiwan, Korea, Okinawa, Thailand, Guam and Hawaii.

1971-1974: Teaching Assistant, University of Oklahoma, Norman. Courses taught: Introductory Zoology, Invertebrate Zoology, Entomology, Ecology, and Parasitology; Research: Simuliid demography, stream ecology, rodent and bat ectoparasites.

1974-1975: Research Associate, University of Maryland School of Medicine, Baltimore; Research: Blood feeding behavior and larval intraspecific competition in Anopheles stephensi.

1975-1980: Assistant Professor of International Medicine at the Pakistan Medical Research Centre, University of Maryland School of Medicine, Lahore, Pakistan; Research: Population ecology and bionomics of Pakistan mosquitoes and their relation to pathogen transmission; experimentation towards the application of genetical systems for mosquito control.

1980-1995: Research Entomologist and Director, Arbovirus Field Station, School of Public Health, University of California, Berkeley; Research: Population ecology, bionomics, genetics and vector competence of Culex tarsalis in relation to arbovirus ecology and control in California.

1995-present: Research Entomologist, Director, Arbovirus Field Station, Center for Vectoborne Disease Research, Adjunct Professor, Department of Pathology, Microbiology and Immunology, School of Veterinary Medicine, University of California, Davis; Research: Population ecology of Culex tarsalis and other mosquitoes and their vertebrate hosts in relation to the epidemiology, surveillance and control of arboviruses.


Professional Activities:
  • Society Memberships
    • American Mosquito Control Association
    • Mosquito and Vector Control Association of California
    • Entomological Society of America, Society for Vector Ecology
    • American Society of Tropical Medicine and Hygiene
  • Offices held in Societies
    • 1988 - present: Co-editor or Subject Editor, Journal of Medical Entomology, Entomological Society of America
    • 1989 - 1992: Vice President, President-elect and President, Society for Vector Ecology
    • 1989 - 1994: American Committee on Medical Entomology, American Society of Tropical Medicine and Hygiene
    • 1990 - 2001: Chairman, Disease Control Subcommittee, California Mosquito and Vector Control Association
    • 1994 - 1998: Member, Exotic Genome Committee, American Mosquito Control Association
    • 1994 - present: Member and Chair, Vector Control Advisory Committee, California Department of Public Health
    • 1996 - 1998: Secretary, Chairman elect and Chairman, Section D, Entomological Society of America
    • 1999: Member, Awards Committee, Society for Vector Ecology
    • 1999 - 2004: Chairman, Editorial Board, Journal of the American Mosquito Control Association
    • 2000 - present: Assistant Editor, Vector-borne and Zoonotic Diseases
    • 2000 - present: Member, West Nile working group, California Department of Public Health
    • 2001 - 2002: Chair, Nominations Committee, Society for Vector Ecology
    • 2001 - 2005: Member, West Nile Task Force, Kern County
    • 2001 - present: Chairman, Vector and Vector-borne Disease Committee, Mosquito and Vector Control Association of California
    • 2004: Chair, Publications Council, Entomological Society of America
    • 2004: Member, Nomination committee, Society for Vector Ecology
    • 2005: Member, Reeves’ Student award committee, Mosquito and Vector Control Association of California
  • Honors
    • Arthur T. Bragg Award for outstanding research in natural history, University of Oklahoma, 1974
    • Lifetime Award for Achievement in Medical Entomology, Society for Vector Ecology, 2001
    • Fellow, Entomological Society of America, 2003
    • Academic Federation Award for Excellence in Research, University of California, Davis, 2004
    • John N. Belkin Award for excellence in Vector Ecology, American Mosquito Control Association, 2006



  • 2006
    • Reisen, WK, Y Fang and VM Martinez. Vector competence of Culiseta incidens and Culex thriambus for West Nile Virus. J. Amer. Mosq. Control. Assoc. [in review]
    • Fang, Y and WK Reisen. Previous infection West Nile or St Louis encephalitis viruses provides cross protection during reinfection in House finches. Am. J. Trop. Med. Hyg. [in press]
    • Mahmood, M., RE Chiles, Y Fang, EN Green and WK Reisen. Dose, age and genotype effect Culex tarsalis [Diptera: Culicidae] vector competence for Western equine encephalomyelitis virus. J. Amer. Mosq. Control Assoc. [in press]
    • Reisen, WK, VM Martinez, Y Fang, S Garcia, S Ashtari, SS. Wheeler and BD Carroll. Role of California (Callipepla californica) and Gambel's (Callipepla gambelii) quail in the epidemiology of western equine encephalomyelitis, St. Louis encephalitis and West Nile viruses in California, Vector-borne and Zoonotic Dis. [in press]
    • Reisen, WK, CM Barker, R Carney, HD Lothrop, SS Wheeler, JL Wilson, MB Madon, R Takahashi, B Carroll, S Garcia, T Fang, M Shafii, S Ashtari, V Kramer, C Glaser, and Jean. Role of Corvids in the epidemiology of West Nile virus in Southern California. J. Med. Entomol. 43: 356-367
    • Reisen, WK, Y Fang, H Lothrop, V Martinez, J Wilson, P O'Connor, R Carney, B Cahoon-Young, M Shafii and AC Brault. Overwintering of West Nile virus in southern California. J. Med. Entomol. 43: 344-355.
    • Reisen, WK, Y Fang, and VM Martinez. Effects of temperature on the transmission of West Nile virus by Culex tarsalis (Diptera: Culicidae). J. Med. Entomol. 43: 309-317
  • 2005
    • Hull, J., A. Hull, WK Reisen, Y Fang, H Ernest. Variation in West Nile Virus Antibody Prevalence of Migrating and Wintering Hawks in Central California. Condor
    • Trevejo, RT, WK Reisen, G Yoshimura and WC Reeves. Detection of chicken antibodies to mosquito salivary gland antigens by enzyme immunoassay. J. Am. Mosq. Contr. Assoc. 21: 39-48.
    • Reisen, WK, SS Wheeler, S Yamamoto, Y Fang and S Garcia. Nesting ardeid colonies are not a focus of elevated West Nile virus activity in Southern California. Vector-borne Zoonotic Dis. 5: 258-266.
    • Reisen, WK, Y. Fang, and V.M. Martinez. Avian host and mosquito (Diptera: Culicidae) vector competence determine the efficiency of West Nile and St. Louis encephalitis virus transmission. J. Med. Entomol. 42: 367-375.
    • Mahmood F, WK Reisen, RE Chiles and Y Fang. Western equine encephalomyelitis virus infection affects the life table characteristics of Culex tarsalis (Diptera: Culicidae). J. Med. Entomol. 41: 982-985.
  • 2004
    • Reisen,W., H Lothrop, R Chiles, M Madon, C Cossen, L Woods, S Husted, V Kramer, J Edman. Invasion of California by West Nile Virus. Emerg. Inf. Dis. 10: 1369 - 1378.
    • Mahmood,F., RE Chiles, Y Fang, CM Barker and WK Reisen. Role of nestling mourning doves and house finches as amplifying hosts of St. Louis encephalitis virus. J. Med. Entomol. 41: 965-972.
    • Reisen WK, Chiles RE, Martinez VM, Green EN, Fang Y. Encephalitis virus persistence in California birds: experimental infections in mourning doves (Zenaidura macroura). Med Entomol 41: 462-466.
    • Reisen WK, Chiles RE, Martinez VM, Y Fang, E Green, S Clark. Effect of dose on house finch infection with Western equine encephalomyelitis and St. Louis encephalitis viruses. J Med Entomol. 41: 978-981
    • Mahmood F, Fang Y, Green EN, Clark S, Reisen WK. Evaluation of methods for studying the vector competence of Culex tarsalis for western equine encephalomyelitis virus. J Am Mosq Control Assoc 20: 277-282.
    • Chiles RE, Green EN, Fang Y, Goddard L, Roth A, Reisen WK, Scott TW. Blinded laboratory comparison of in situ enzyme immunoassay, the VecTest wicking assay and a reverse transcription-polymeras chain reaction assay to detect mosquitoes infected with West Nile and St. Louis encephalitis viruses. J Med Entomol 41: 539-544.
    • Nelson, DM, IA Gardner, RE Chiles, UB Balasuriya, BF Eldridge, TW Scott, WK Reisen and NJ Maclachan. Prevalence of antibodies against Saint Louis encephalitis and Jamestown Canyon viruses in California horses. Comp. Immunol. Microbiol. Inf. Dis. 27: 209-215.