
CDC warns travelers of dengue risk in 16 countries
The CDC updated a Level 1 travel advisory to warn travelers about dengue in 16 countries, urging precautions like long sleeves, insect repellent and sleeping in screened rooms; dengue can rapidly worsen and cause severe symptoms such as brain bleeding, and there is no vaccine for travelers; most US cases come from international travel, with outbreaks recurring every few years.












