Volume 13, Number 10—October 2007
THEME ISSUE
Global Poverty and Human Development
Research
Dengue Fever Seroprevalence and Risk Factors, Texas–Mexico Border, 2004
Table 2
Serologic test results for serosurvey, Brownsville, Texas, and Matamoros, Mexico, 2004*
Serologic test | Brownsville, n | Matamoros, n |
---|---|---|
Recent infection† | 6 | 22 |
IgM >0.2 OD† | 1 | 2 |
IgG >40,960 | 5 | 19 |
PRNT90 | 1 (DEN-2) | 2 (DEN-1) |
Past infection‡ | 119 | 235 |
*IgM, immunoglobulin M; OD, optical density; PRNT, plaque reduction neutralization test; DEN, dengue virus.
†Laboratory-confirmed by the Dengue Branch, Centers for Disease Control and Prevention, defined by antidengue IgG titer >40,960 or IgM >0.2 OD.
‡Laboratory-confirmed by using indirect IgG ELISA (Panbio Inc., Brisbane, Queensland, Australia).