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

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

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.

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.

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

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.

Each flu season brings new strains of the virus that are unpredictable. Getting a flu shot is safe and it is the very best way to protect yourself and others.

Can you get the flu after you’ve already had the flu? Is it too late to get your shot? We’ve tapped experts to answer these questions — and more.

Not sure how you should treat your symptoms? Take our quiz to help deduce what’s going on inside your body.

Find out whether it’s too late to get your flu shot, what your symptoms mean, and how long you’ll be sick with flu.