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News From the Centers for Disease Control and Prevention
January 6, 2015

Model Estimates How Chikungunya Spreads in the Americas

JAMA. 2015;313(1):21. doi:10.1001/jama.2014.16908

The Centers for Disease Control and Prevention (CDC) has developed a mathematical model that tracks how transmission of the mosquito-borne chikungunya virus is spreading in the Americas.

The first reports of local chikungunya transmission in the Americas were in St Martin in December 2013. As of mid-May 2014, French Guiana and 14 Caribbean islands reported 55 992 cases. By October 31, the CDC indicated that 780 206 suspected and 15 242 laboratory-confirmed cases had been reported in the Caribbean and in Central, South, and North America. Symptoms of chikungunya infection include fever, joint pain, muscle aches, and headache.

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