Reduced Incidence of Chikungunya Virus Infection in Communities with OngoingAedes AegyptiMosquito Trap Intervention Studies — Salinas and Guayama, Puerto Rico, November 2015–February 2016

Aedes species mosquitoes transmit chikungunya virus, as well as dengue and Zika viruses, and bite most often during the day.* Infectious mosquito bites frequently occur in and around homes (1,2). Caribbean countries first reported local transmission of chikungunya virus in December 2013, and soon after, chikungunya virus spread throughout the Americas (3). Puerto Rico reported its first laboratory-positive chikungunya case in May 2014 (4), and...