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.
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.
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.
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.
What Is the High-Dose Flu Vaccine, and Who Can Get It? Here's What Infectious Disease Experts Say
Flu season is starting, in case you didn't know.
Is the Flu Airborne? Here’s What Infectious Disease Experts Say
The answer is less straightforward than you might think.