Prevalence of Febrile Syndromes in Dengue Surveillance, Havana City, 2007 (Reprinted from Revista Cubana de Higiene y Epidemiologia vol 13, pg 47, 2011)

OBJECTIVE Determine point prevalence of febrile syndromes and compare with prevalence reported by habitual clinical and seroepidemiologic dengue surveillance system in Havana City. METHODS In October 2007, a descriptive, cross-sectional study was carried out in a representative sample, calculating prevalences of febrile syndromes and undifferentiated febrile syndromes. Chi-sguate analysis was used for rate comparisons. RESULTS Point prevalences of febrile syndromes and undifferentiated febrile syndromes were 352.6 and 144.2 times greater, respectively, than those reported by the habitual clinical and seroepidemiologic dengue surveillance system; these differences were statistically significant (p < 0.001). CONCLUSIONS Point prevalence of febrile syndromes was far greater than prevalence reported by the habitual clinical and seroepidemiologic dengue surveillance system, an indication of underreporting.