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Volume 8, Number 12—December 2002

Research

Vector Competence of California Mosquitoes for West Nile virus

Laura B. Goddard*Comments to Author , Amy E. Roth*, William Reisen*, and Thomas W. Scott*
Author affiliations: *University of California, Davis, California, USA;

Main Article

Table 2

Infection and transmission rates for California mosquito species orally infected with 107.1±0.1 PFU/mL of West Nile virus

Species Source by county Day transmission attempted No. tested Infection ratea Transmission rateb
Culex tarsalis Yolo 7 30 87 60
14 1 100 100
Kern 7 15 93 40
14 35 74 60
Riverside 7 49 94 10
14 55 85 62
Cx. pipiens quinquefasciatus Kern 7 50 86 4
14 50 58 52
Riverside 7 60 8 0
7 60 13 2
14 58 28 19
Orange 7 45 80 9
14 50 66 36
Cx. p. pipiens Shasta 7 17 100 0
14 31 100 71
Cx. stigmatosoma San Bernardino 7 15 67 0
14 48 77 19
Cx. erythrothorax Orange 7 15 100 33
14 25 100 64
Ochlerotatus dorsalis Kern 7 30 50 13
14 29 41 34
Oc. melanimon San Luis Obispo 7 50 46 18
14 60 48 20
Oc. sierrensis Lake 7 40 5 3
14 50 14 6
Aedes vexans Riverside 14 22 32 23
Culiseta inornata Kern 14 28 75 21

aPercent of mosquito bodies positive for WNV.
bPercent of transmission attempts positive for WNV.

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