The Caribbean is not a malarial zone, but cases of malaria have been reported in the Dominican Republic, mainly along the Haitian border. While the risk to travellers is small, if you intend to travel in this area it's a good idea to take a course of prophylactics (usually chloroquine), available from a doctor or travel clinic.

There are slightly higher rates of dengue fever , another mosquito-borne illness whose symptoms resemble those of malaria but include extreme aches and pains in the bones and joints, along with fever and dizziness. The only cure for dengue fever is rest and painkillers, and like malaria the only precaution you can take is to avoid mosquito bites.