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JAMA Patient Page
June 2, 2004


JAMA. 2004;291(21):2664. doi:10.1001/jama.291.21.2664

Malaria is a potentially deadly disease caused by infection with the microscopic parasite Plasmodium. Plasmodium is transmitted to humans through bites from Anopheles mosquitoes infected with the parasite. According to the World Health Organization, malaria is present in more than 100 countries—mostly in sub-Saharan Africa and Southeast Asia. Each year there are roughly 300 million cases of malaria, and more than 1.5 million people die of the disease. Children and pregnant women are especially at risk for malaria. The June 2, 2004, issue of JAMA includes an article about using mosquito nets embedded with insect repellent to reduce the prevalence of malaria.