United States

This report summarizes cases in persons with onset of illness in 2010 and summarizes trends during previous years.

This article reviews the history of malaria and its eradication in the U.S. and discusses methods for laboratory diagnosis.

Although malaria diagnostic testing services were available to a majority of U.S. laboratories surveyed, very few were in complete compliance with all of the CLSI guidelines for analysis and reporting of results, and most respondents reported very few cases of malaria annually.

During May 4, 2007–February 29, 2008, the United States resettled 6,159 refugees from Tanzania. Refugees received pre-departure antimalarial treatment with sulfadoxine-pyrimethamine (SP), partially supervised (three/six doses) artemether-lumefantrine (AL), or fully supervised AL.

Malaria is a preventable disease for which the risk to life and costs of treatment are significant.

Decreasing the number of malaria cases in subsequent years will require conveying the importance of adhering to appropriate preventive measures for malaria specifically targeting travelers visiting friends and relatives, missionary, and pregnant populations.

Initial responses to questionnaires used to assess participants' understanding of informed consent for malaria vaccine trials conducted in the United States and Mali were tallied.

CDC received reports of 1,298 cases of malaria with an onset of symptoms in 2008 among patients in the United States, a decrease of 13.8% from the 1,505 cases reported for 2007 (p<0.001). These cases included one transfusion-related case, one congenital case, and two fatal cases. Plasmodium falciparum, P. vivax, P. malariae, and P. ovale were identified in 40.6%, 14.6%, 1.5%, and 1.4% of cases, respectively.