Dengue: aspectos epidemiológicos e o primeiro surto ocorrido na região do Médio Solimões, Coari, Estado do Amazonas, no período de 2008 a 2009

Abstract

RESUMOIntrodução: A dengue é uma das doenças infecciosas mais frequentes no Brasil e um dos principais problemas de saúde pública no mundo, principalmente em regiões tropicais e subtropicais, com 2,5 a 3 bilhões de pessoas expostas ao risco de serem infectadas atualmente. Deste modo, o presente estudo teve como objetivo demonstrar as características epidemiológicas dos indivíduos acometidos por dengue, sua prevalência e seu processo epidêmico na região ABSTRACT Introduction:Dengue is one of the most prevalent infectious diseases in Brazil and is a major public health problem worldwide. It is most prevalent in tropical and subtropical regions with 2.5 to 3 billion people at risk of becoming infected. Thus, this study sought to demonstrate the epidemiological characteristics of individuals affected by dengue, its prevalence and its epidemic process in the Middle Solimões region of Coari in the state of Amazonas between 2008 and 2009. Methods: Epidemiological data were obtained through epidemiological monitoring by the Municipal Health Facility of the city of Coari, AM. The variables analyzed were the month of notification, the number of confirmed cases, the cases' genders, the cases' ages and their neighborhoods of residence. Results: In total, 1,003 cases were reported (635 in 2008 and 368 in 2009), and 639 cases were diagnosed as positive. Of these, +54% involved female subjects, and +46% were male. The majority of the affected individuals were between 10 and 49 years of age, and the spatial distribution was concentrated in neighborhoods near streams, lakes and areas in which housing had recently been disrupted. Conclusions: We concluded that, during the period studied, there was an outbreak of dengue in the City of Coari, AM. However, it is possible that a dengue epidemic may have occurred earlier in Coari without proper diagnosis or follow-up and that previously infected individuals may have traveled to the capital of Amazonas (Manaus), where the virus has circulated since 1998. Keywords: Dengue. Epidemic outbreak. Coari. Amazonas.A dengue é uma das doenças infecciosas mais frequentes no Brasil e um dos principais problemas de saúde pública no mundo, principalmente em regiões tropicais e subtropicais. Apresenta quadro clínico de início repentino e amplo, variando desde formas oligossintomáticas (infecção inaparente) e sintomáticas (dengue clássica) até quadros graves com hemorragias (febre hemorrágica da dengue -FHD) e choque (síndrome do choque da dengue -SCD) 1 . Etiologicamente, seu agente causador é um vírus pertencente à família flaviviridae com genoma RNA e quatro sorotipos conhecidos (DEN-1, DEN-2, DEN-3 e DEN-4) 2 . Sua transmissão é feita pelo mosquito Aedes aegypti, principal vetor, que em geral utiliza recipientes artificiais para proliferação vetorial, tornando essa espécie predominantemente urbana 3 .

Prevalence of Arbovirus Infections among Pregnant Women at a Maternity Hospital School

“…However, it is worth stressing that arboviruses, especially dengue, affect the population in all Brazilian states, regardless of social class [7,8].…”

Dengue seroprevalence among asymptomatic blood donors during an epidemic outbreak in Central-West Brazil

“…Dengue fever, the most prevalent arboviral disease in Brazil, represents a major public health problem because no governmental measures are directed at controlling the frequent outbreaks in the country [14]. DENV is of great consequence in the area of transfusion because the virus can be transmitted in blood and cause hemorrhagic outcomes in the recipients of blood components [15].…”

Epidemiological Analysis of Dengue's Incidence on Ceres-Go County Between 2012 and 2015

“…Year data 2015 represented above, the absolute number of total cases, and the impact of that number in the population (incidence coefficient) suggests the entry of a new serotype in the region. People never before exposed to one serotype are much more susceptible to epidemics, because they still do not have immunity to the new serotype (Costa et al, 2011; SES-SP, 2014).…”