Incidencia de infecciones por arbovirus encefalitógenos en México

Abstract

This article contains information on the incidence of arthropod-borne encephalitic diseases caused by EE, EEO, EEV, ESL and Ilheus arboviruses in the folloing Mexican states: Sonora, Tamaulipas, Nayarit, Jalisco, Federal District, Morelos, Veracruz, Tabasco, Campeche, Yucatan and Quintana Roo

Serological surveys in persons between the ages of 5 and 60 years show that the overall infection rate in these regions has remained low

In Xochimilco and Mexico City, D.F., which are 2,240 meters above sea level no cases of human encephalitis caused by the viruses covered by the survey have been encountered nor have any human cases due to ESL and Ilheus virus been reported in Coatetelco, Morelos, which lies on the Central Meseta at an altitude slightly below that of the Federal District. However, vectors and reservoirs of these viruses do exist in these regions

There have been no oubreaks of encephalitis with the exception of that which occurred in Campeche in 1962 and affected 13 persons. The finding of EEV in Campeche, subsequently confirmed by isolation of the virus, is of epidemiological interest not only for Mexico but for other countries since this virus had heretofore not been identified north of Panama

Since infection rates are low, the potential hazard presented in the areas in which there are virus vectors and reservoirs by the great number of susceptible persons in the population, namely ...(AU)