Volume 31, Number 5—May 2025
Dispatch
Venezuelan Equine Encephalitis, Peruvian Amazon, 2020
Table 1
Alphavirus serologic reactivity patterns in VEEV IgG-positive serum samples from Loreto, Peru, in study of Venezuelan equine encephalitis, Peruvian Amazon, 2020*
Sample | VEEV PRNT50 titer | IgG indirect immunofluorescent assay result |
|||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
CHIKV | ONNV | RRV | BFV | SINV | WEEV | EEEV | VEEV | CHIKV vlp | MAYV vlp | ||
3216 | >1:320 | + | + | + | – | – | + | – | + | + | + |
3270 | 1:40 | + | + | + | + | + | + | + | + | + | + |
3393 | 1:40 | – | – | – | – | – | – | – | + | – | – |
3399 | 1:160 | – | – | – | – | – | – | – | + | – | – |
3624 | 1:40 | – | – | – | – | – | – | – | + | – | – |
3634 | 1:40 | + | + | + | – | – | + | – | + | + | + |
3876 | 1:40 | – | – | – | – | – | – | – | + | – | – |
3927 | 1:80 | – | – | – | – | – | – | – | + | – | – |
3940 | 1:40 | – | – | – | – | – | – | – | + | – | – |
4140 | >1:320 | + | – | + | – | – | + | – | + | – | – |
4294 | 1:160 | + | + | + | – | – | – | – | + | + | + |
4321 | 1:80 | + | – | + | – | – | + | + | + | – | – |
4420 | 1:80 | – | – | – | – | – | – | – | + | – | + |
4590 | 1:40 | – | – | – | – | – | – | – | + | – | – |
4669 | 1:80 | – | – | – | – | – | – | – | + | – | – |
4747 | 1:160 | – | – | – | – | – | – | – | + | – | – |
4768 | 1:40 | + | – | – | – | – | – | – | + | + | + |
4797 | 1:160 | + | – | – | – | – | + | – | + | – | + |
*Bold indicates monotypic reactions. BFV, Barmah Forest virus; CHIKV, chikungunya virus; EEEV, Eastern equine encephalitis virus; MAYV, Mayaro virus; ONNV, o’nyong-nyong virus; PRNT50, plaque reduction neutralization test with ≥50% plaque reduction considered positive; RRV, Ross River virus; SINV, Sindbis virus; VEEV, Venezuelan equine encephalitis virus; vlp, virus-like particle; WEEV, Western equine encephalitis virus.
Page created: March 18, 2025
Page updated: April 28, 2025
Page reviewed: April 28, 2025
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.