Volume 10, Number 12—December 2004

Research

Venezuelan Equine Encephalitis Virus, Southern Mexico

José G. Estrada-Franco*, Roberto Navarro-Lopez†, Jerome E. Freier‡, Dionicio Cordova§, Tamara Clements¶, Abelardo Moncayo*, Wenli Kang*, Carlos Gomez-Hernandez#, Gabriela Rodriguez-Dominguez#, George V. Ludwig¶, and Scott C. Weaver* 

Author affiliations: *University of Texas Medical Branch, Galveston, Texas, USA; †Comision Mexico-Estados Unidos para la Prevencion de la Fiebre Aftosa y Otras Enfermedades Exoticas de los Animales, Mexico, Mexico City, Mexico; ‡U.S. Department of Agriculture, Fort Collins, Colorado, USA; §Instituto Nacional de Investigaciones Forestales Agricolas y Pecuarias (INIFAP) Mexico City, Mexico; ¶U.S. Army Medical Research Institute of Infectious Diseases, Ft. Detrick, Maryland, USA; #Instituto de Salud de la Secretaria de Salud de Chiapas, Tuxtla Gutierrez, Chiapas, Mexico

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Figure 2

Figure 2. Rates of Venezuelan equine encephalitis virus (VEEV) seropositivity by age group for persons living in the La Encrucijada region. Positive samples had 80% plaque reduction neutralization test (PRNT) titers of >1:20. Numbers on bars indicate the total number of serum specimens tested for each age group.

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