Volume 13, Number 4—April 2007
Letter
West Nile Virus, Venezuela
Figure
![Collection sites for West Nile virus (WNV) in Venezuela. Symbols represent results of tests for specific antibodies to WNV in serum samples of birds and horses (viral titers in a 90% plaque reduction neutralization test >40 and a 4-fold differential inhibition in a neutralization assay to WNV compared with other related flaviviruses). Source: Instituto Geográfico de Venezuela Simón Bolivar, Caracas, Venezuela.](/eid/images/06-1383-F1.jpg)
Figure. Collection sites for West Nile virus (WNV) in Venezuela. Symbols represent results of tests for specific antibodies to WNV in serum samples of birds and horses (viral titers in a 90% plaque reduction neutralization test >40 and a 4-fold differential inhibition in a neutralization assay to WNV compared with other related flaviviruses). Source: Instituto Geográfico de Venezuela Simón Bolivar, Caracas, Venezuela.
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