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Volume 10, Number 8—August 2004
Research

West Nile Virus in California

William K. Reisen*Comments to Author , Hugh Lothrop*, Robert Chiles*, Minoo Madon†, Cynthia Cossen‡, Leslie Woods*, Stan Husted‡, Vicki L. Kramer‡, and John Edman*
Author affiliations: *University of California, Davis, California, USA; †Greater Los Angeles County Mosquito and Vector Control District, Santa Fe Springs, California, USA; ‡California Department of Health Services, Sacramento, California, USA

Main Article

Table 1

Surveillance data for southern West Nile virus foci and the rest of California, January 1–November 1, 2003a

Surveillance data Research areas
 Remaining agencies Total
Imperial Coachella LA
Human cases
 1
 0
 0
 1
 2
Horse cases
 0
 0
 0
 1
 1
Mosquito pools
 238
 1,414
 1,663
 6,416
 9,731
Culex tarsalis
 150
 948
 121
 3,176
 4,395
WNV pos
 16
 10
 0
 0
 26
SLEV pos
 1
 3
 0
 0
 4
WEEV pos
 0
 0
 0
 1
 1
Cx. pipiens complex
 0
 299
 1,036
 1,170
 2,505
WNV pos
 0
 0
 6
 0
 6
Othersb
 88
 167
 506
 2,070
 2,831
Sentinel chickens
 6
 10
 5
 191
 212
WNV pos
 51
 18
 0
 0
 69
SLEV pos
 3
 2
 0
 8
 13
WEEV pos
 0
 0
 0
 0
 0
Dead birds reported
 23
 15
 1,218
 6,294
 7,550
Tested
 6
 5
 256
 1,118
 1,385
WNV pos
 0
 0
 38
 21
 59
Wild bird sera
 0
 3,178
 1,452
 4,502
 9,132
WNV pos
51
 0
 0
 51
WEEV pos 2 0 0 2

aLA, Los Angeles; WNV, West Nile virus; SLEV, St. Louis encephalitis virus; WEEV, western equine encephalitis virus; pos, positive.
bOther mosquitoes tested: Anopheles franciscanus, An. hermsi, Ae. vexans, Culiseta inornata, Cs. incidens, Cx. erythrothorax, Cx. erraticus, Cx. stigmatosoma, Oc. sierrensis, Oc. dorsalis, Oc. melanimon, Oc. taeniorhynchus, Psorophora columbiae.

Main Article

1Procedures for the bleeding and husbandry of sentinel chickens were described in Protocol 9608 approved by the University of California, Davis, Animal Use and Care Administrative Advisory Committee.

2The collection, banding, and bleeding of wild birds were conducted under Protocol 9605 approved by the Animal Use and Care Administrative Advisory Committee of the University of California, Davis, California Resident Scientific Collection Permit 801049-02 by the State of California Department of Fish and Game, and Master Station Federal Bird Marking and Salvage Permit 22763 from the U.S. Geological Survey Bird Banding Laboratory.

Page created: March 03, 2011
Page updated: March 03, 2011
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The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
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