Dengue fever is endemic to tropical and sub-tropical regions of the world. It can result in a painful fever and, in extreme cases, even death.

Severe dengue occurs in about 1 in 20 infections and can include vomiting, restlessness, rapid breathing and bloody gums, nose or stool. Infants, elderly people and pregnant women are at increased ...

Puerto Rico has declared a dengue fever epidemic following a spike in cases, prompting questions about the mosquito-borne virus. The U.S. territory declared the public health emergency Monday ...

Scientists say gene-editing technology may eradicate a mosquito in the U.S. that spreads dengue and other diseases. Concerns remain about the possible environmental impact of bioengineered mosquitoes.