EPIDEMIOLOGY OF DENGUE IN NORTHWESTERN MUNICIPALITIES OF THE STATE OF PARANÁ, BRAZIL

Abstract

This study outlines the behavior of dengue in microregions of the northwestern part of Parana State between 2000 and 2007 based on a survey of dengue records of the National Monitoring and Notification System and Health Surveillance Section. A total of 24,015 cases of dengue confirmed by serological examination were notified during the study period. Individuals older than 30 years were the most affected, corresponding to 54.3% (n=13,035) of the cases notified. With respect to the evolution of dengue, 76.05% (n=18,281) of the cases were cured. Severe forms (dengue with complications, hemorrhagic fever, shock syndrome) of the disease were observed in 22 cases and four of these (0.03%) died of the disease. Most cases (66.3%, n=10,200) were classified as classic dengue. Two cases of dengue hemorrhagic fever were notified in 2002 and five 2007. Viral isolation was only performed in 48 samples. Of these, 28 infections were caused by serotype I, four by serotype II and 16 by serotype III. The large number of autochthonous cases (63.7%) suggests that dengue is not controlled in the region. The house and Breteau indices were above those recommended by the WHO, indicating high infestation of houses and water containers with Aedes aegypti larvae. DOI: http://dx.doi.org/10.17525/vrr.v14i2.31