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Salud Pública de México

versión impresa ISSN 0036-3634

Resumen

SANCHEZ-BURGOS, Gilma Guadalupe et al. Prevalence of neutralizing antibodies to dengue virus serotypes in university students from Tabasco, Mexico. Salud pública Méx [online]. 2008, vol.50, n.5, pp.362-366. ISSN 0036-3634.

OBJECTIVE: Determine the seroprevalence of neutralizing antibodies to dengue virus in students from the state university of Tabasco, Mexico. MATERIAL AND METHODS: A transversal study was conducted of serum collected from students between September and November, 2005. The sera were screened for anti-dengue IgG and those that had evidence of dengue antibodies were analyzed by a plaque reduction neutralization test. RESULTS: Prevalence of anti-dengue IgG was 9.1%. The frequency of neutralizing antibodies was 100% for DENV-2, 68% for DENV-4, 20% for DENV-1, and 4 % for DENV-3. CONCLUSIONS: We found that in this population, DENV-2 circulates more than DENV-3 despite the fact that DENV-3 is more frequently isolated. Unexpectedly, neutralizing antibodies against DENV-4 were frequently found even though this serotype is almost extinct; thus, it is probable that cross-immunity could suppress DEN-4 transmission, as has been suggested.

Palabras llave : dengue; antibodies; viral transmission; Mexico.

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