Plasmodium vivax
Plasmodium vivax is a protozoal parasite and a human pathogen. This parasite is the most frequent and widely distributed cause of recurring (Benign tertian) malaria, "P. vivax" is one of the five species of malaria parasites that commonly infect humans. Although it is less virulent than "Plasmodium falciparum", the deadliest of the five human malaria parasites, "P. vivax" malaria infections can lead to severe disease and death, often due to splenomegaly (a pathologically enlarged spleen). "P. vivax" is carried by the female "Anopheles" mosquito; the males do not bite.
Aedes aegypti
The mosquito carries a disease that is widespread in tropical South America and Africa, and often come out in moderate regions during the summer time. Today, the "Aedes aegypti" is found around the southeast region of the U.S., but is slowly decreasing due to competition with other mosquitoes, such as "Aedes albopictus".