Volume 10, Number 7—July 2004
Dispatch
Family Cluster of Mayaro Fever, Venezuela
Jaime R. Torres*
, Kevin L. Russell†, Clovis Vasquez‡, Robert B. Tesh§, Rosalba Salas¶, and Douglas M. Watts§
, Kevin L. Russell†, Clovis Vasquez‡, Robert B. Tesh§, Rosalba Salas¶, and Douglas M. Watts§Table
Mayaro and Venezuelan equine encephalitis viral IgM and IgG antibodies demonstrated by an antibody-capture ELISA in serum samples obtained from three Venezuelan family membersa
| Patient | Antibody titersb |
||||||||
|---|---|---|---|---|---|---|---|---|---|
| Convalescent-phasec |
Late convalescent–phased |
||||||||
| MAYV |
VEEV |
MAYV |
VEEV |
||||||
| IgM | IgG | IgM | IgG | IgM | IgG | IgM | IgG | ||
| 1 |
3,200 |
12,800 |
0 |
400 |
0 |
12,800 |
0 |
400 |
|
| 2 |
6,400 |
12,800 |
0 |
800 |
0 |
12,800 |
0 |
800 |
|
| 3 | 6,400 | 6,400 | 0 | 400 | 0 | 6,400 | 0 | 100 | |
aMAYV, Mayaro virus; VEEV, Venezuelan equine encephalitis virus; IgM, IgG, immunoglobulin M, G; ELISA, enzyme-linked immunosorbent assay.
bReciprocal of highest serum dilution at which a positive result occurred.
cThree months after onset of illness.
dSix months after onset of illness.
