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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 ...

Knowing how germs are transmitted is key to preventing disease, and it varies for different bacteria, viruses, and other pathogens. In some cases, you have to come into direct contact with an infected ...

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, even kill us. That last ...