Volume 18, Number 4—April 2012
Letter
Mayaro Virus Infection in Traveler Returning from Amazon Basin, Northern Peru
Table
Results of serologic testing for a Mayaro virus–infected Swiss traveler returning from the Amazon Basin, northern Peru, 2011*
| Virus | Antigenic complex | Indirect immunofluorescence assay |
Virus neutralization assay |
||||||
|---|---|---|---|---|---|---|---|---|---|
| First serum sample† |
Second serum sample‡ |
First serum sample† | Second serum sample‡ | ||||||
| IgG | IgM | IgG | IgM | ||||||
| Mayaro virus | SF | 2,560 | 1,280 | 2,560 | 40 | 40 | 160 | ||
| Chikungunya virus | SF | 160 | <20 | 160 | <20 | ND | ND | ||
| O`Nyong-nyong virus | SF | 20 | <20 | 80 | <20 | ND | ND | ||
| Ross River virus | SF | 160 | <20 | 160 | <20 | ND | ND | ||
| Semliki Forest virus | SF | 80 | <20 | 80 | <20 | 20 | 20 | ||
| Barmah Forest virus | BF | 20 | <20 | 20 | <20 | ND | ND | ||
| Venezuelan equine encephalitis virus | VEE | 80 | <20 | 80 | <20 | ND | ND | ||
| Western equine encephalitis virus | WEE | 80 | <20 | 80 | <20 | ND | ND | ||
| Sindbis virus | WEE | 160 | <20 | 160 | <20 | <20 | <20 | ||
| Eastern equine encephalitis virus | EEE | <20 | <20 | <20 | <20 | ND | ND | ||
*SF, Semliki Forest; ND, not done; BF, Barmah Forest; VEE, Venezuelan equine encephalitis; WEE, Western equine encephalitis; EEE, Eastern equine encephalitis.
†Sample obtained August 29, 2011.
‡Sample obtained September 12, 2011.
1These authors contributed equally to this article.


