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Malaria (mosquito borne)


Malaria is caused by a parasite that is transmitted from person to person by the bite of an infected Anopheles mosquito. These mosquitoes are present in almost all countries in the tropics and subtropics. Anopheles mosquitoes bite during nighttime hours, from dusk to dawn. Therefore, antimalarial drugs are only recommended for travelers who will have exposure during evening and nighttime hours in malaria risk areas.

Disease Reporting

Health care providers and clinical laboratories are required by law to report cases and suspect cases of malaria to local health departments within one working day of identification.
Disease reporting form (pdf) for health-care practitioners

See our disease reporting page for information on how to report and for telephone numbers of local health departments.

For county health departments:

Malaria: Investigative Guidelines (pdf)
Malaria: Case Report Form (pdf)


Malaria statistics (pdf) from the 2015 Communicable Disease Summary.

See Also
The CDC fact sheet answers some common questions about malaria.