The idea that a single-celled bacterium can defend itself against viruses in a similar way as the 1.8-trillion-cell human ...

"Be sure to use a toxin-free disinfectant to keep germs at bay," says Lana Tkachenko, Eco-Friendly Cleaning Expert and ...

The word 'virus' gets tossed around a lot. Here's what actually counts, what to watch for, and how to stay two clicks ahead ...