Volume 8, Number 12—December 2002
Research
Vector Competence of California Mosquitoes for West Nile virus
Laura B. Goddard*
, Amy E. Roth*, William Reisen*, and Thomas W. Scott*
, Amy E. Roth*, William Reisen*, and Thomas W. Scott*Table 3
Infection and transmission rates for California mosquito species orally infected with 104.9±0.1 PFU/mL of West Nile virus (WNV)
| Species | Source by county | Day transmission attempted | No. tested | Infection ratea | Transmission rateb |
|---|---|---|---|---|---|
| Culex tarsalis | Yolo | 7 | 25 | 8 | 0 |
| 14 | 11 | 36 | 82 | ||
| Kern | 7 | 10 | 30 | 10 | |
| 14 | 45 | 7 | 0 | ||
| Riverside | 7 | 40 | 13 | 0 | |
| 14 | 10 | 0 | 0 | ||
| Cx. pipiens quinquefasciatus | Kern | 7 | 50 | 58 | 0 |
| 14 | 50 | 10 | 0 | ||
| Riverside | 7 | 50 | 0 | 0 | |
| 14 | 55 | 0 | 0 | ||
| Cx. p. pipiens | Shasta | 7 | 25 | 36 | 0 |
| 14 | 35 | 23 | 60 | ||
| Cx. stigmatosoma | San Bernardino | 14 | 29 | 69 | 34 |
| Cx. erythrothorax | Orange | 7 | 47 | 15 | 0 |
| Riverside | 7 | 12 | 67 | 0 | |
| 14 | 20 | 65 | 30 | ||
| Ochlerotatus dorsalis | San Luis Obispo | 7 | 29 | 3 | 0 |
| 14 | 25 | 4 | 4 | ||
| Oc. melanimon | Kern | 7 | 50 | 0 | 0 |
| 14 | 60 | 3 | 2 | ||
| Oc. sierrensis | Lake | 7 | 25 | 4 | 0 |
| 14 | 30 | 0 | 0 |
aPercent of mosquito bodies positive for WNV.
bPercent of transmission attempts positive for WNV.
