There’s no cure for Ebola. But a group of scientists is exploring whether some drugs already approved to treat cancer might help tame the virus. Sounds wild. But there’s a reason to think it might work.
Dengue fever, a nasty disease caused by a virus, is just beginning to show up in the U.S. It’s carried from person to person by mosquitoes, and one researcher studying the spread is looking for clues in the age of the insects. But it’s not very easy to tell how old a mosquito is.