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Sci Rep. 2016 Apr 5;6:23997. doi: 10.1038/srep23997.

Evaluating the effectiveness of localized control strategies to curtail chikungunya.

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Department of Epidemiology of Microbial Disease, Yale School of Public Health, New Haven, CT, USA.
Children's Hospital Informatics Program, Boston Children's Hospital, Boston, Massachusetts, USA.
Department of Ecology &Evolutionary Biology, Yale University, New Haven, CT, USA.


Chikungunya, a re-emerging arbovirus transmitted to humans by Aedes aegypti and Ae. albopictus mosquitoes, causes debilitating disease characterized by an acute febrile phase and chronic joint pain. Chikungunya has recently spread to the island of St. Martin and subsequently throughout the Americas. The disease is now affecting 42 countries and territories throughout the Americas. While chikungunya is mainly a tropical disease, the recent introduction and subsequent spread of Ae. albopictus into temperate regions has increased the threat of chikungunya outbreaks beyond the tropics. Given that there are currently no vaccines or treatments for chikungunya, vector control remains the primary measure to curtail transmission. To investigate the effectiveness of a containment strategy that combines disease surveillance, localized vector control and transmission reduction measures, we developed a model of chikungunya transmission dynamics within a large residential neighborhood, explicitly accounting for human and mosquito movement. Our findings indicate that prompt targeted vector control efforts combined with measures to reduce transmission from symptomatic cases to mosquitoes may be highly effective approaches for controlling outbreaks of chikungunya, provided that sufficient detection of chikungunya cases can be achieved.

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