10 Countries That Have Serious Malaria Warnings

2. Papua New Guinea

Malaria is most prevalent in the lowlands of Papua New Guinea. Of the four human species of the disease, the most endemic is Plasmodium falciparum, recorded at rates rarely seen outside of sub-Saharan Africa. This unique occurrence has led to more research on the variety of causes, in particular, the parasites responsible for transmitting the disease. Prevention medication is critical for travelers to the country and dosage must be continued upon returning home.