Every year, tens of millions of people in the U.S. get the flu vaccine. That’s because the virus changes year-to-year and ...

In a typical year, the process of bringing a new seasonal flu shot to market is one of the United States’ most predictable ...

Some surveys have shown that nearly 30% of people believe getting a flu shot can actually cause influenza. This belief is likely due to common side effects linked to the vaccine, including headache, ...

Add Yahoo as a preferred source to see more of our stories on Google. Holidays are upon us — and so is the flu. More Americans are getting infected with seasonal influenza and seeking care, according ...

Add Yahoo as a preferred source to see more of our stories on Google. Schools across the United States are being forced to close due to surges of influenza and other seasonal illnesses. As the ...

A team at the Larner College of Medicine at the University of Vermont has stumbled onto a finding that upends a long-standing ...

Flu changes every year, so our vaccine has to change with it. Here’s the quick what-and-why behind the annual shot, how it’s picked, made, and when to get it. Here are a few questions about influenza ...

When the flu comes at you, brace yourself for a tough time. “It’s like a truck hit you,” says Carlene Muto, MD, an infectious disease specialist and medical director of infection prevention at Temple ...

Influenza is a seasonal condition that causes coughing, sneezing, mild fever and aches in most cases. However, it can sometimes take a serious turn, leading to hospitalization, especially for young ...

Flu cases are high in California with respiratory virus season in full swing. About 20% of tests for influenza came back as positive in California for the week of Dec. 29 to Jan. 4, according to the ...