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

Morato, Daniela G
Barreto, Florisneide R
Braga, José U
Natividade, Marcio S
Journal Title
Journal ISSN
Volume Title
Memórias Instituto Oswlado Cruz
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. dengue; epidemiology; epidemic; diffusion; spatiotemporal; trajectory
José Ueleres Braga. Instituto Nacional de Cardiologia. Documento produzido em parceria ou por autor vinculado ao INC, mas não consta a informação no documento.
Dengue, Epidemiology, Epidemic, Diffusion, Spatiotemporal, Trajectory
Morato DG, Barreto FR, Braga JU, Natividade MS, Costa MCN, Morato V. The spatiotemporal trajectory of a dengue epidemic in a medium-sized city. Mem Inst Oswaldo Cruz [internet]. 2015; 110 (4): 528-533. Doi: 10.1590/0074-0276140388 .