Los Angeles Times

Why do we get side effects from vaccines? Experts say that means it’s working

The cooling sensation of an alcohol swab on your upper bicep is a cue for what’s about to come next: the injection of a needle that delivers a dose of vaccine. More than 69% of Americans have received at least one dose of a COVID-19 vaccine, and as a bandage is applied to your arm, you are part of the club. Whether you’re getting your first shot, a second dose or a booster, you’re likely to ...

The cooling sensation of an alcohol swab on your upper bicep is a cue for what’s about to come next: the injection of a needle that delivers a dose of vaccine.

More than 69% of Americans have received at least one dose of a COVID-19 vaccine, and as a bandage is applied to your arm, you are part of the club.

Whether you’re getting your first shot, a second dose or a booster, you’re likely to experience some side effects.

They may be inconvenient, and they certainly can be uncomfortable. But immunologists and virologists say they are to be expected.

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