Dengue Virus Infections Among Travelers Returning From Haiti-Georgia and Nebraska, October 2010

The Nebraska's Central District Health Department, the Nebraska Department of Health and Human Services, the Georgia Department of Public Health, and CDC conducted a retrospective cohort study to assess the pretravel dengue knowledge and mosquito-avoidance practices of those with and without laboratory-confirmed infection. Here, Anderson et al describe the results of that study, which indicated that 90% of those in the study had a pretravel health-care appointment, 57% sought travel advice on the Internet, and 24% used mosquito repellent several times a day; neither pretravel knowledge nor mosquito-avoidance practices were significantly associated with absence of DENV infection. A CDC editorial note is included. Accordingly, clinicians should be vigilant for dengue among travelers returning from Haiti and other areas where DENV is endemic or likely to be endemic and should report suspected cases of dengue to public health authorities.