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, ...

U.S. flu cases are surging partially because of a new strain named "subclade K," that is not well covered by this year’s flu vaccine. Doctors still recommend getting the flu vaccine as it can reduce ...

Add Yahoo as a preferred source to see more of our stories on Google. People who get a flu shot are less likely to become severely ill, be hospitalized or die. - Kylie Cooper/Reuters/File Flu is ...

Add Yahoo as a preferred source to see more of our stories on Google. A vaccine is administered in this file photo. (Elizabeth Conley/Staff Photographer) Houston has seen an active flu season as a new ...

Flu is surging across most of the U.S. But, amid an early, harsh season, there is a glimmer of promising news: The flu shot may be more effective than experts predicted. Early evidence shows that this ...

This year’s flu vaccine may be more effective than experts previously believed. People who got the shot had measurable protection from severe illness, researchers at the University of Pennsylvania ...

Every year, flu vaccines are updated to match the flu viruses expected to circulate. For 2026, the vaccine focuses on several influenza strains that research predicts will be most prevalent. This ...

Flu is making people miserable from coast to coast, thanks in large part to a new strain called subclade K. That’s why infectious disease experts are telling people to run, not walk, to get this ...