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This Is When You’re Most Contagious With the Flu

What Is the Incubation Period of the Flu—And When Are You Most Contagious?

You may be able to pass on the virus, even if you don't feel sick yet.

This Is the Most Common Cause of Fever, According to Doctors

What Causes a Fever? Here’s What to Know—And When to See a Doctor

FYI: A fever is actually a good sign that your body's fighting off illness.

Why You Shouldn’t Just Ignore Cold Sweats, According to Experts

Cold Sweats: What to Know About Causes and Treatments, According to Experts

Plus, why you shouldn't ignore them if they happen often.

How Are the Spanish Flu and COVID-19 Alike? Here's What Doctors Say

How Are the Spanish Flu and COVID-19 Alike? Here's What Doctors Say

Both caused global pandemics; here's how they compare in terms of symptoms, treatment, and death toll.

This Is Exactly How Long You Can Be Contagious with a Cold, According to Doctors

How Long Is a Cold Contagious? Here’s What Experts Say

Unfortunately, you may not be in the clear as soon as your nose stops running.

Here’s What You Should Do If You Think You Have a Low Grade Fever

What Is a Low Grade Fever? We Asked Experts to Explain

Plus, what to do if you've had a low grade fever for a few days.

More on Cold, Flu, and Sinus

What Is In the Flu Shot? Here’s How Experts Explain Common Ingredients

What Is in the Flu Shot? Here’s How Experts Explain Common Ingredients

Remember: the ingredients in your flu vaccine are there to keep you safe from a deadly virus.

Is Stuffy Nose a Symptom of COVID? Here’s What an Expert Says

Is Stuffy Nose a Symptom of COVID? Here’s What an Expert Says

Read this if you've been sniffling a bit more lately.

4 Vaccines You Should Consider if You (or a Loved One) Are Over 65

4 Vaccines You Should Consider if You (or a Loved One) Are Over 65

What Is a Chest Cold? Here’s How Doctors Explain It

What Is a Chest Cold? Here’s How Doctors Explain It

What Is the High-Dose Flu Vaccine, and Who Can Get It? Here's What Infectious Disease Experts Say

What Is the High-Dose Flu Vaccine, and Who Can Get It? Here's What Infectious Disease Experts Say

This Is the Most Common Way the Flu Spreads

Is the Flu Airborne? Here’s What Infectious Disease Experts Say

The Early Flu Symptoms You Should Know About, According to Infectious Disease Experts

There's a reason people say it feels like being "hit by a truck."

All Cold, Flu and Sinus

This Busy Philipps-Loved Skincare Brand Still Has Hand Sanitizer in Stock

This Busy Philipps-Loved Skincare Brand Still Has Hand Sanitizer in Stock

How to Boost Your Immune System, According to Experts

How to Boost Your Immune System, According to Experts

This $7 CBD Hand Sanitizer Sold Out in 12 Hours—and It’s Back in Stock

This $7 CBD Hand Sanitizer Sold Out in 12 Hours—and It’s Back in Stock

This $13 Eucalyptus Essential Oil Diffusing Pod Clears Sinuses and Relieves Congestion

This $13 Eucalyptus Essential Oil Diffusing Pod Clears Sinuses and Relieves Congestion

Doctors Start to Worry When Your Fever Goes Above This Temperature

What Temperature is Considered a Fever in Adults? Doctors Explain the Most Common Coronavirus Symptom

HGTV Star Erin Napier Says She and Her Daughter Helen May Have Had Coronavirus Without Knowing It

HGTV Star Erin Napier Says She and Her Daughter Helen May Have Had Coronavirus Without Knowing It

7 Things You Should Sanitize to Avoid Getting Sick

7 Things You Should Sanitize to Avoid Getting Sick

The Best Disinfectants Approved by the EPA to Kill the Coronavirus

The Best Disinfectants Approved by the EPA to Kill the Coronavirus

Hand Sanitizer Is Still in High Demand—Here Are 19 Picks You Can Shop Now

The 19 Best Hand Sanitizers That Meet the CDC Guidelines

14 Foods to Eat When You Have a Cold

14 Foods to Eat When You Have a Cold

Graduate Student Dies of the Flu Before Rescuers Find Him Following Garbled 911 Call

Graduate Student Dies of the Flu Before Rescuers Find Him Following Garbled 911 Call

This Is How Many People Die From the Flu Each Year, According to the CDC

This Is How Many People Die From the Flu Each Year, According to the CDC

Anti-Vaxxer Facebook Groups Are Putting Children's Lives at Risk By Advising Against Using Tamiflu

Anti-Vaxxer Facebook Groups Are Putting Children's Lives at Risk By Advising Against Using Tamiflu

Calif. Dad of 3 Fighting for His Life After Contracting 'Grim' Bacterial Blood Infection and Flu on Business Trip

Calif. Dad of 3 Fighting for His Life After Contracting Bacterial Blood Infection & Flu on Work Trip

A Doctor Told Us How to Avoid Getting Sick While Traveling

A Doctor Told Us How to Avoid Getting Sick While Traveling

Keith Urban Says He's Heading Home 'ASAP' from Grammys to Tend to Nicole Kidman, Who Has the Flu

Keith Urban Says He's Heading Home 'ASAP' from Grammys to Tend to Nicole Kidman, Who Has the Flu

Netflix's 'Pandemic' Highlights the Need for a Universal Flu Vaccine—So Why Don't We Have One Yet?

Netflix's 'Pandemic' Highlights The Need for a Universal Flu Vaccine—So Why Don't We Have One Yet?

15-Year-Old Cheerleader Dies Unexpectedly From Septic Shock After Having the Flu

A 15-Year-Old Cheerleader Died From Septic Shock After Having the Flu—Here's How That Can Happen

Ohio Teen, 16, Dies from the Flu Just Days After Spending Christmas with Family

Ohio Teen, 16, Dies from the Flu Just Days After Spending Christmas with Family

What Exactly is 'Normal' Human Body Temperature—and Has It Really Decreased?

What Exactly is 'Normal' Human Body Temperature—and Has It Really Decreased?

Your Fitbit Can Apparently Help Predict Flu Outbreaks—But How?

Your Fitbit May Help Predict Flu Outbreaks, According to New Study

More Than Half of Parents Skip Out on Getting Their Kids a Flu Shot—Here's Why

Parents Reportedly Don't Take the Flu Seriously Enough—and it Could Be Hurting Their Children

11-Year-Old New York Boy Dies from Flu-Related Complications Despite Being Vaccinated

11-Year-Old New York Boy Dies from Flu-Related Complications Despite Being Vaccinated

This Year's Flu Shot May Not Be as Effective Against One Common Strain—Here's What That Means

This Year's Flu Shot May Not Be as Effective Against One Common Strain—Here's What That Means

Idaho Girl, 13, Dies from Flu Complications 4 Days Before Birthday

Idaho Girl, 13, Dies from Flu Complications 4 Days Before Birthday