Last month, a trial for a new HIV vaccine started up in Orlando. The National Institutes of Health and a Seattle-based research organization have been recruiting volunteers nationwide for more than a year, but they haven’t found enough candidates. That’s why they’ve expanded their search to include Florida. One problem is the enrollment criteria are so stringent that many people don’t qualify. Euna Lee reports.

A Collier County man died last week after contracting West Nile Virus. Another is hospitalized, and the illness has also claimed the life of an Orange County resident. In addition, more than a hundred cases of another mosquito-borne illness, dengue fever, have been reported in Florida this year. Mosquitoes carrying the dengue virus haven’t been seen in the state for decades, but they have now shown up in Key West and Broward County. With mosquito-borne diseases on the rise, public health officials are increasing mosquito control efforts, and a team of researchers from the University of Central Florida is trying to produce a low-cost dengue fever vaccine. Euna Lhee reports.