When should you get your flu shot? Flu season typically starts in December and peaks in February, so the "optimal time" to get vaccinated is heading into the season, Dr. Céline Gounder ...

New York's flu vaccination rate is historically about 50%, but rising vaccine hesitancy and misinformation has fueled declines in uptake of the flu shot in recent years. The current flu season saw ...

The flu vaccine is recommended annually for all Americans 6 months and older, per the Centers for Disease Control and Prevention — but a new study from Cleveland Clinic suggests that it might ...

We asked the experts to explain what makes this year's flu season so unusual. Colored scanning electron micrograph (SEM) of H1N1 influenza (flu) virus particle isolated from a lung cell.

A new Cleveland Clinic study—yet to be peer-reviewed—found higher flu rates in vaccinated people compared to unvaccinated, but experts say testing bias likely skewed the results. The study has ...

The flu is a contagious viral infection of the respiratory system that affects the nose, throat and lungs. It is caused by influenza viruses. Symptoms of mild flu infections can resemble those of ...

Bird flu has ripped through the animal kingdom for the past few years now, killing countless birds and crossing into an alarming number of mammals. Yet people remain largely untouched. Even though ...

By Dani Blum Lauren Caggiano had felt sick for days by the time she tested positive for the flu in an emergency room on a February afternoon. Hours later, she was in the intensive care unit.