CHANGING PATTERNS OF AUTOCHTHONOUS MALARIA TRANSMISSION IN THE UNITED-STATES - A REVIEW OF RECENT OUTBREAKS

Three recent outbreaks of locally acquired malaria in densely populate d areas of the United States demonstrate the continued risk for mosqui toborne transmission of this disease. Increased global travel, immigra tion, and the presence of competent anopheline vectors throughout the continental United States contribute to the ongoing threat of malaria transmission. The likelihood of mosquitoborne transmission in the Unit ed States is dependent on the interactions between the human host, ano pheline vector, malaria parasite, and environmental conditions. Recent changes in the epidemiology of locally acquired malaria and possible factors contributing to these changes are discussed.