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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.
Model Estimates How Chikungunya Spreads in the Americas. JAMA. 2015;313(1):21. doi:10.1001/jama.2014.16908