Malaria is a common and serious tropical disease.
It is a protozoan infection transmitted by mosquitos biting mostly between sunset and sunrise. P.ovale , and P.malariae . The malaria situation is getting worse in many areas, and prevention and treatment of falciparum malaria are becoming more difficult because the resistance of the P.falciparum to antimalarial drugs is increasing and becoming more widespread. Resistance of P.vivax to chloroquine has been reported from Irian Jaya, Myanmar, Papua New Guinea and Vanuatu. However, poor compliance with prophylactic regimens remains the major reason for malaria in travellers.