There are occassional cases of malaria in the DR. There were also 2 cases reported in New York last month! Denghue is more of a danger than malaria. It is recommended that one take precautions against mosquitoes in all of the Western Hemisphere. Bring a good repellent with you. I use a mosquito net at night. But don't panic. I do think the government could do better at mosquito control than it is doing, and hope they organize and make an attempt to minimize the mosquito population by going after breeding grounds, some spraying, and educating the people how to eliminate breeding grounds on their properties...not have pools of standing water, and covering the barrels that hold their water, etc.