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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†Comments to Author 
Author affiliations: *Instituto Nacional de Salud, Bogota, Colombia; †University of Texas Medical Branch, Galveston, Texas, USA

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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.

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