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Infectious Diseases

Flu (Influenza)

Find the latest stories, news, and expert advice about influenza, including medical research on symptoms, treatment, and prevention.

Woman getting flu shot at pharmacy counter image.
Risk Factors

When Is It Too Early to Get a Flu Shot?

Getting vaccinated for the flu in late summer, particularly for older adults, may mean less protection from the virus as flu season ramps up in the winter.

The Latest

Woman with a cold outside.
Prevention

Worst Flu Season Ever?

We hate to be the bearers of bad news, but this is shaping up to be another crazy-bad flu season. Check out these tips to stay healthy.

tired woman exercising
Complications

Should I Exercise When I'm Sick?

Some people believe in sweating out the sickness — but is it safe?

Woman with the flu drinking tea.
Prevention

This Flu Season is the Longest in 10 Years

We’re going on Week 22 of flu season, and no, it’s not necessarily too late to get your shot. Here’s what you should know.

Woman with the flu drinking tea and covered with a blanket.
Risk Factors

Could You Catch the Flu From a Bat?

You’ve heard of bird (avian) flu and swine flu. New research published in Nature identified influenza viruses in South American bats that could pass to humans.

Woman with the flu on the couch at home.
Risk Factors

What's Lurking in Your Nose That Could Up Your Flu Risk?

Certain bacteria in the respiratory system — specifically in the nose and throat — could impact your susceptibility to the flu, according to a study.

Doctor talking to young pregnant woman about flu risks.
Risk Factors

Are You at Risk for Serious Flu Complications?

People at increased risk for flu complications should be tested and receive antiviral therapy as soon as possible if they experience flu-like symptoms.

Smiling teen girl after getting a flu shot.
Vaccines

Flu Shots: Racial Disparities in Teens Who Get Them

African-American teens get flu vaccines at lower rates than white or Hispanic adolescents and teens have lower flu shot rates than other age groups overall.

Doctor administering a flu shot.
Prevention

Want to Live Longer With Heart Failure? Get That Flu Shot

New research shows that getting an annual flu shot reduces the risk of premature death from heart failure, particularly in patients 65 and older who already have compromised circulation and other health complications.

Young people with flu in hospital waiting room.
Weight

Does Your Weight Affect Your Risk of Flu Complications?

People who are significantly underweight and those who are morbidly obese are at increased risk for serious complications and hospitalization from the flu.

Man sick with the flu lying on the couch.
Medication

FDA Okays First New Drug to Fight the Flu in Nearly 20 Years

The FDA approved baloxavir marboxil (Xofluza) for acute influenza without complications in people over 12 who’ve had flu symptoms for no more than 48 hours.