We know how to avoid germs: wash your hands, wear a mask, and maybe try to avoid people who have obvious cold or flu symptoms.
But there are also some things you can do every day to help your immune system fight off passing viruses. One of the most effective is vaccination. Although the Covid and flu vaccines don’t prevent illness, “year after year they provide protection against more serious illness, that is, they help you stay out of the hospital,” said William Schaffner, professor of infectious diseases and preventive medicine at Vanderbilt University.
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