A hantavirus outbreak on a cruise ship has revived fears of rodent-borne diseases. From the Black Death to modern outbreaks, here's how such infections have shaped human history, and why they still ...

Infectious diseases are common worldwide. Your immune system is able to fight most germs that you grew up with. If you've been deployed abroad, you may have encountered some germs you're not used ...

A virus is a sneaky little bugger whose goal is to get inside your body. When it does enter your body it finds a normal cell to infect. Once it’s inside the cell, the virus will create newly copied ...