Volume 9, Number 1—January 2003
Research
Natural Enzootic Vectors of Venezuelan equine encephalitis virus in the Magdalena Valley, Colombia
Cristina Ferro*, Jorge Boshell*, Abelardo C. Moncayo†, Marta Gonzalez*, Marta L. Ahumada*, Wenli Kang†, and Scott C. Weaver†
Table 2
Mosquito vector species identified in transmission of Venezuelan equine encephalitis virus to hamsters
| Hamster no. | Vector species | Titer of vector poola | Collection interval of vector pool (h) | Titer of other mosquito pools in the same collection as the vectora | Fraction of mosquito species infected on the subsequent day’s collectiona |
|---|---|---|---|---|---|
| 65 | Culex pedroi | 5.2 | 0–24 | <2 | 6/10 |
| 66 | Cx. vomerifer | 5.0 | 48–72 | <2 | 18/18 |
| 144 | Cx. vomerifer | 5.4 | 24–48 | <2 | NA |
| 150 | Cx. adamesi | 5.5 | 24–48 | <2 | 9/9 |
| 164 | Cx. vomerifer | 5.8 | 0–24 | ≤3.3 | 10/10 |
| 172b | Cx. vomerifer | 5.4 | 24–48 | ≤3.8 | 9/9 |
| 184 | Cx. pedroi | 5.1 | 0–24 | ≤2.3 | 6/6 |
| 186 | Cx. vomerifer | 6.1 | 0–24 | <2 | 9/9 |
| 264 | Cx. vomerifer | 5.4 | 0–24 | >3.9 | 12/16 |
| 272 | Cx. pedroi | 5.1 | 0–24 | <2 | 11/11 |
| 277 | Cx. adamesi | 5.3 | 0–24 | <2 | 18/18 |
| 279 | Cx. vomerifer | 6.1 | 24–48 | <2 | 14/16 |
| 286 | Cx. vomerifer | 5.5 | 120–144 | <2 | 14/15 |
| 287 | Cx. pedroi | 5.4 | 0–24 | <2 | 15/15 |
| 296 | Cx. vomerifer | 5.7 | 0–24 | >4.9 | 10/10 |
| 290 | Cx. pedroi | 5.4 | 0–24 | <2.8 | 13/15 |
| 304 | Cx. vomerifer | 5.3 | 48–72 | <2 | 8/8 |
| 305 | Cx. vomerifer | 5.7 | 2 | ≤2.1 | 8/8 |
aLog10 Vero PFU per pool
bA second infected pool of C. vomerifer with a log titer of 3.8 was collected on day 1, but was presumed not to have been transmitted to the hamster due to its low titer.
