On December 12, 2013, the Caribbean Public Health Agency (CARPHA) received notification of ten confirmed cases of locally acquired chikungunya virus infection on the French side of the Caribbean island of Saint Martin, which is divided into two parts, Sint Maarten and Saint Martin, governed by the Netherlands and France respectively. Four additional cases have been identified as probable cases, and 20 other persons are suspected of having the disease. Laboratory test results are awaited and it i...