Malaria Trends in the Navy and Marine Corps, 2005-2013

U.S. Sailors and Marines routinely deploy to regions where malaria is endemic, such as Africa and Asia. This report describes the trends, demographic characteristics, and exposure type and location for active duty Navy and Marine Corps malaria cases from January 2005 to December 2013. Electronic clinical records for laboratory results and hospitalizations, as well as reported medical events, for malaria were used to identify cases. There were 112 malaria cases identified among Navy and Marine Corps service members during the study time frame. Most cases were associated with travel to Africa (58.9%) and were duty related (60.7%); however, one-fourth of cases were associated with personal travel. The majority of cases exposed while on personal travel were foreign born (74.2%). This comprehensive assessment of trends and burden of malaria among Sailors and Marines is essential to ensure mission readiness and the management and evaluation of malaria control programs. Further analysis may be warranted to explore the relationship between personal travel and foreign-born status in the Department of the Navy to determine potential for additional intervention and education.