People traveling to Africa may have a higher risk of infection, because they frequently stay outdoors and often camp in rural areas where mosquitoes are common. There may be no risk of malaria (even in malaria-infested areas such as Southeast Asia and South America) if travelers stay in urban or resort areas where there are fewer mosquitoes.
In the United States 1,691 people developed malaria in 2010 (the most recent year for which statistics are available). Most of the people were infected with P. falciparum malaria. Several of the people were infected with more than one type of malaria. Nine of the people died.2 Cases of malaria in the U.S. occur primarily in international travelers, military personnel, and immigrants from countries where malaria is present.
- World Health Organization (2012). World Malaria Report 2012. Available online: http://www.who.int/malaria/publications/world_malaria_report_2012/en/index.html.
- Centers for Disease Control and Prevention (2012). Malaria surveillance—United States, 2010. MMWR, 61(SS02): 1–17. Available online: http://www.cdc.gov/mmwr/preview/mmwrhtml/ss6102a1.htm?s_cid=ss6102a1_w.
Last Revised: April 11, 2013
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