A preservative-free flu shot is a type of flu vaccine that does ... and other microorganisms that might contaminate a vial when a needle is inserted. Some people seek out preservative-free ...

Just over half of U.S. adults (53%) say they’ve gotten neither the flu shot nor the updated COVID-19 vaccine since last ...

Luckily, flu vaccine side effects in general are pretty ... When you tense up, you increase the chances that the vaccine ...

So far this season, the vaccine's protection against flu hospitalization was at least 63% for children and at least 41% for adults. These estimates of effectiveness against hospitalization ...