From 2004 to 2009, the number of malaria cases reported in Haiti increased nearly fivefold. The effect of the 2010 earthquake and its aftermath on malaria transmission in Haiti is not known. Imported malaria cases in the United States acquired in Haiti tripled from 2009 to 2010, likely reflecting both the increased number of travelers arriving from Haiti and the increased risk of acquiring malaria infection in Haiti. The demographics of travelers and the proportion of severe cases are similar to those statistics reported in previous years. Non-adherence to malaria chemoprophylaxis remains a nearly universal modifiable risk factor among these cases.
*Address correspondence to Meredith McMorrow, Division of Parasitic Diseases and Malaria, Center for Global Health, Centers for Disease Control and Prevention, 4770 Buford Highway, MS F-22, Atlanta, GA 30341. E-mail: firstname.lastname@example.org
Authors' addresses: Aarti Agarwal, Meredith McMorrow, and Paul M. Arguin, Division of Parasitic Diseases and Malaria, Center for Global Health, Centers for Disease Control and Prevention, Atlanta, GA, E-mails: email@example.com, firstname.lastname@example.org, and email@example.com.