Volume 9, Number 7—July 2003
Dispatch
Serologic Evidence of West Nile Virus Infection in Horses, Yucatan State, Mexico
María A. Loroño-Pino*†, Bradley J. Blitvich*, José A. Farfán-Ale†, Fernando I. Puerto†, José M. Blanco‡, Nicole L. Marlenee*, Elsy P. Rosado-Paredes†, Julian E. García-Rejón†, Duane J. Gubler§, Charles H. Calisher*, and Barry J. Beaty*
Table 3
Neutralizing antibody titers to West Nile, Saint Louis encephalitis, Ilhéus, and Bussuquara viruses in serum samples from six horsesa
| Horse | PRNT90 titer |
|||
|---|---|---|---|---|
| WNV | SLEV | ILHV | BSQV | |
| H-60 |
–b |
20c |
–b |
– |
| H-117 |
320 |
– |
–b |
– |
| H-126 |
>2,560 |
–b |
– |
– |
| H-134 |
– |
– |
– |
– |
| H-141 |
– |
– |
– |
– |
| H-252 | 160 | – | – | – |
aWNV, West Nile virus; SLEV, Saint Louis encephalitis virus; ILHV, Ilhéus virus; BSQV, Bussuquara virus; PRNT, plaque reduction neutralization test; –, <20.
bPRNT80 titer: 20.
cPRNT80 titer: 40.
