Prevalencia de anticuerpos contra dengue y leptospira en la población de Jáltipan, Veracruz

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Abstract
To discover the prevalence of antibodies against denguevirus and leptospira. A cross-sectional study was carried out in 500 inhabitants of Veracruz, Mexico through household sampling, administration of a questionnaire and collection of blood samples.The presence of IgG antibodies was determined and factors associated with seroprevalence were evaluated using a logistic regression model. Total denguevirus seroprevalence was 79.6% (IC 95% 76-81). The main factors associated with infection were age and residence in neighborhoods with higher vectorial indices (RMP = 2.94, IC 95% 1.46-6.1). Overall seroprevalence against leptospira was 4% (IC 95% 2-6). Prevalence was higher in the 25 to 44 years age group (35%, IC 95% 15-59). Seroprevalence in individuals who referred to living with dogs, pigs, cows and rats was 25% (IC 95% 0.63-80). Eighty-five percent of individuals who were leptospira positive were also dengue positive. The prevalence of denguevirus antibodies suggests the risk of serious dengue hemorrhagic outbreaks. Although leptospirosis prevalence was low, the coexistence of both agents was confirmed.

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