As of Sept. 1, the Centers for Disease Control and Prevention authorized an updated COVID-19 vaccine with the goal of fending off a surge in cases this fall and winter. Moderna and Pfizer both have ...

If you're thinking about getting a Covid booster shot, you're probably wondering about its side effects. Don't worry: Compared with your last dose, your booster shot should be a much smoother ...

If you're thinking of getting an omicron-specific Covid booster shot, you might be wondering what its side effects are — and how severe they might be. Rest assured: They're not expected to be much ...

However, the study found that a third dose of the Pfizer vaccine, and mixing Pfizer and AstraZeneca preventives may protect ...

Pfizer and BioNTech said Wednesday that initial lab tests show that the omicron variant partly escapes protection offered by the companies' two-dose regimen of their COVID-19 vaccine. However, those ...