The spatiotemporal trajectory of a dengue epidemic in a medium-sized city

AUTOR(ES)

Morato, Daniela G, Barreto, Florisneide R, Braga, José U, Natividade, Marcio S, Costa, Maria da Conceição N, Morato, Vanessa, Teixeira, Maria da Glória Lima Cruz

FONTE

Mem. Inst. Oswaldo Cruz

DATA DE PUBLICAÇÃO

09/06/2015

RESUMO

Understanding the transmission dynamics of infectious diseases is important to allow for improvements of control measures. To investigate the spatiotemporal pattern of an epidemic dengue occurred at a medium-sized city in the Northeast Region of Brazil in 2009, we conducted an ecological study of the notified dengue cases georeferenced according to epidemiological week (EW) and home address. Kernel density estimation and space-time interaction were analysed using the Knox method. The evolution of the epidemic was analysed using an animated projection technique. The dengue incidence was 6.918.7/100,000 inhabitants; the peak of the epidemic occurred from 8 February-1 March, EWs 6-9 (828.7/100,000 inhabitants). There were cases throughout the city and was identified space-time interaction. Three epicenters were responsible for spreading the disease in an expansion and relocation diffusion pattern. If the health services could detect in real time the epicenters and apply nimbly control measures, may possibly reduce the magnitude of dengue epidemics.

Documentos Relacionados

• Recent dengue virus infection: epidemiological survey on risk factors associated with infection in a medium-sized city in Mato Grosso
• Association of sulfur dioxide exposure with circulatory system deaths in a medium-sized city in Brazil
• Air pollution and cardiovascular hospital admissions in a medium-sized city in São Paulo State, Brazil
• Prenatal and infant health care in a medium-sized community.
• Association between NOx exposure and deaths caused by respiratory diseases in a medium-sized Brazilian city