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MalariaMalaria is a disease caused by the parasite Plasmodium, which is transmitted by the bite of an infected mosquito. Only the Anopheles genus of the mosquito can transmit Malaria. The symptoms of the disease include fever, vomiting and/or headache. A characteristic malarial fever has ‘hot’, ‘wet’ and ‘cold’ phases and appears 10 to 15 days after the mosquito bite.

Blood slides are examined under a microscope to diagnose malaria, where the parasite is seen inside red blood cells. Rapid diagnostic test kits (RDTs) are used for diagnosing malaria in remote areas where microscopes cannot be used. Plasmodium vivax or P. falciparum are the most common malarial parasites, while P. malariae and P. ovale are other rarer forms. Of these, infection with P. falciparum is the most fatal if left untreated and may lead to kidney and brain complications, and even death.

Chloroquine was the treatment of choice for malaria and is still followed in most countries for treatment of P. vivax, but P. falciparum has developed resistance to it and presently Artemisinin-based combination therapy is advised as the primary treatment for malaria. Among preventive measures, use of insecticide treated nets at home and indoor residual spraying of insecticides are those recommended for malaria; they act by decreasing exposure to bites of infected mosquitoes. General information about this disease.

PAHO/WHO supports CDC-led effort to eliminate malaria on Hispaniola by 2020

 The Pan American Health Organization/World Health Organization (PAHO/WHO) has joined a collaborative effort led by the U.S. Centers for Disease Control and Prevention (CDC) that seeks to eliminate indigenous cases of malaria on the island of Hispaniola by 2020. 

:: Malaria Video List


Communicable Diseases and Health Analysis Department
Neglected, Tropical and Vector Borne Diseases Unit
Malaria Program

Regional Office for the Americas of the World Health Organization
525 Twenty-third Street, N.W., Washington, D.C. 20037, United States of America
Tel.: +1 (202) 974-3000 Fax: +1 (202) 974-3663

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