Infectious Diseases

Infectious diseases are everywhere. Learn about infection symptoms, types of infections, prevention and more.

These 9 Diseases Are the Most Deadly in the World

You might be surprised by a few diseases on this list from the World Health Organization.


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7 Things That Can Happen If You Don’t Wash Your Hands

Handwashing is a simple act that you (hopefully!) do many times a day, but it's even more important than...


What Doctors Need You to Know About Hand, Foot, and Mouth Disease

Coxsackievirus causes this common childhood ailment. Here's the scoop on the illness, its treatment—and everything else you need to know.


12 Scary Diseases You Didn’t Know You Could Catch at the Beach

Sunburn isn't the only concern at the shore this year. Keep your family safe by protecting them against these scary...


12 Diseases You Didn’t Know You Could Get on Vacation

Vacations are about leaving worry behind—but you'll want to take measures to avoid these disgusting and sometimes deadly infections. Here's...


9 Things That Food Poisoning Experts Never Eat

Some foods are more associated with illnesses than others, according to the Centers for Disease Control and Prevention (CDC). But...


15 Diseases You Thought Were Gone—but Aren’t

Believe it or not, these retro-sounding illnesses are still alive and well, and without the necessary precautions, you could wind...


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10 Ways You’re Washing Your Hands Wrong

Improper handwashing can leave you susceptible to germs. Make sure you’re not making common hand-washing mistakes.

You’ll Never Guess What Researchers Found Living in Semen

First, Zika was linked to sexual transmission. Now it looks like semen can harbor several dangerous viruses. Here's what you...


Science May Have Just Found a New Vaccine to Protect Against Some Dangerous Diseases

British researchers have made tremendous inroads into stopping global viruses like Zika, dengue and yellow fever, and Hepatitis C. Even...


Doctors Still Don’t Know What Caused This Man to Lose His Limbs—but They Were Able to Miraculo...

A mysterious illness cost a healthy, athletic man parts of all four limbs. But thanks to one doctor’s groundbreaking surgery,...


The Scary Health Threat You Need to Know if You’re Planning to Visit Florida Anytime Soon

A parasitic worm that can infect your brain. Sounds like science fiction, but it isn't—the thing lives in Florida, and...


The Zika Virus May Someday Be Used to Treat Incurable Brain Cancer—Here’s How

Zika has caused a lot of grief and concern, but researchers think they may be able to squeeze some good...


5 Things You Need to Know About Cyclosporiasis (besides That It’s Gross and It’s on the ...

It sounds like a wild ride at an amusement park, but cyclosporiasis is no fun at all—and, spoiler alert, it...


Do You Really Need to Clean Your Grocery Store Shopping Cart?

Your grocery store shopping cart could be a germ magnet! Here's what you need to know.


Listen Up, There’s a New STI You Need to Worry About

There's a new sexually transmitted infection (STI) that you may not know about, and it could put you or your...

Are Measles Coming Back? What You Need to Know

Measles are so last century, right? You might think no one actually gets them anymore, but recent outbreaks suggest otherwise.


Let’s Settle This: Does Double-Dipping Get You Sick?

Sometimes you realize that you want a little more salsa on the second half of your chip, but should you...


8 Calming Facts You Need to Know About the Zika Virus—and 3 Reasons to Worry

Freaked out about the Zika virus this summer? The soothing facts no one is talking about—plus when you should worry.


Kissing! Sex! 6 Answers to Very Personal Zika Virus Questions to Keep You Safe

The Zika virus has been detected in blood, semen, saliva, and urine. Here's what you need to know about Zika...


6 Ways to Avoid Getting Bitten By a Zika Virus Mosquito

The most effective way to protect yourself from the Zika virus is to prevent mosquito bites.

9 Fast Facts You Need to Know About the Rapidly Spreading Zika Virus

The mosquito-borne infection is spreading quickly and possibly causing irreversible birth defects.


Why a Doctor Wants You to Know These 9 Crucial Facts About Tuberculosis

An ancient disease that is still an epidemic in much of the world, tuberculosis, or TB, is largely misunderstood. Here’s...


“I Survived a Flesh-Eating Bacteria”

Author Hampton Sides was 41 years old, in the prime of life, and (he thought) in excellent health.


Health News: Creepy Creatures Fight Disease, Infection and More

Sometimes the most innovative medical treatments come from the grossest of creatures.