Bacteria and viruses are the most common causes of disease, but they have some key differences. Here's what you need to know.

A computer virus is a type of malware that can replicate itself on your computer and spread to other devices.

Ebola is one of the nasty viruses that can hide in the body even after a patient recovers and tests negative. It can reemerge and trigger a new outbreak years later. How do they survive? And how can ...

Coronavirus disease 2019 (COVID-19) is caused by a virus that spreads between people. Find out how to protect yourself and those close to you.

With hand, foot, and mouth disease, or HFMD, spreading through certain parts of the country, there are certain symptoms to look for and ways to treat the illness.

The Antarctic is a harsh and unforgiving climate for many, though there is no shortage of important biological activity happening in the frigid temperatures. Antarctic marine viruses, while proven to ...

Experts warn about the possibility of a new pandemic in 2025 as the H5N1 bird flu virus spreads across all 50 states, impacting US dairy farms and leading to human infections. Here's what to know.

We've all heard of "the flu" but when it comes to types, subtypes and variants, influenza can get a bit complicated. According to the U.S. Centers for Disease Control and Prevention (CDC), nearly ...

If all viruses disappeared, the world would be very different — and not necessarily for the better. But what exactly would happen? Viruses seem to exist solely to wreak havoc on society and bring ...

What is chikungunya virus? Symptoms and advice after first case confirmed in New York - Health authorities have urged people to take precautions against mosquito bites when travelling ...

Sara Moniuszko is a health and lifestyle reporter at CBSNews.com. Previously, she wrote for USA Today, where she was selected to help launch the newspaper's wellness vertical. She now covers breaking ...