The world has gotten really clean during the pandemic and our hypersanitized lives may pose health risks.
Scientists had been blaming mosquitoes for the transmission of Zika. Now a Texas patient is believed to have become infected via sex — it's at least the second documented case.
A Sri Lankan paper recently tried a new way to fight disease: printing the news using mosquito-repelling ink. But no one knows for sure if such moves are effective — or just a creative advertising stunt.