10 Countries That Have Serious Malaria Warnings
Haiti

As of 2015, the only remaining areas of the Caribbean affected by malaria are Haiti and the Dominican Republic. In Haiti, the risk is rated as low to moderate, depending on exact location and conditions. Part of the cause is due to an earthquake in January 2010 which caused some reservoirs to become fertile grounds for infectious mosquitos. Antimalarial medications and avoidance of mosquitos is highly recommended while traveling around Haiti.
Nigeria

Malaria is a major problem in Nigeria, especially among the general population. The country has the largest prevalence of the disease and ninety-seven percent of people live in the highest-risk areas. As a country with a high rate of poverty, prevention is a challenge, so the death rate from malaria has climbed to the highest in the world. Of the 100 million cases each year, about 300,000 end in death. It affects fifty percent of children in the South West.