Bacteria and viruses are often lumped together as germs, and they share many characteristics. They’re invisible to the human eye. They’re everywhere. And both can make us sick. Bacteria and viruses ...

How did viruses evolve? Are they a streamlined form of something that existed long ago, or an ultimate culmination of smaller genetic elements joined together? Aa Aa Aa The evolutionary history of ...

Understanding the differences between bacteria and viruses is crucial for recognizing how these microorganisms impact our ...

Because viruses reproduce so quickly, they can adapt to new conditions in real time. For COVID-19, this means targeting ever younger people whose behavior exposes them to infection as recently found ...