PMID: 9162587Mar 1, 1997Paper

Surveillance and active search of suspected cases of hemorrhagic dengue in Ribeirão Preto, São Paulo

Revista Panamericana De Salud Pública = Pan American Journal of Public Health
R J Pontes, A Ruffino-Netto

Abstract

A clinical-epidemiological case study was carried out to evaluate a surveillance and active search system for suspect cases of dengue hemorrhagic fever/dengue shock syndrome (DHF/DSS) during a dengue epidemic in the Ribeirão Preto municipality, State of São Paulo, Brazil, between November 1990 and March 199. This was the first dengue epidemic ever recorded in this region. Although dengue is a growing public health problem in Brazil, and DHF/DSS has been reported to be evolving in the Americas, health officials have shown a passive attitude towards the disease, partly due to lack of experience. Reporting dengue occurrences, both of isolated cases and of epidemics, is essential to reduce mortality. The data analyzed were collected through the official epidemiological surveillance system during the 1990-1991 epidemic. Out of 2,521 confirmed cases of dengue, 34 cases of febrile acute illness with hemorrhagic manifestations were identified as possible cases of DHF/DSS, as well as two deaths associated to dengue. From these 36 cases, 12 cases were confirmed by laboratory exams as dengue with hemorrhagic manifestations. Examinations of clinical and laboratory data, and results of the autopsies suggested that the two deaths were cases ...Continue Reading

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