As the vaccination campaign against COVID-19 continues and more people receive their second dose, many have reported that it caused more intense side effects than after the first. But vaccine experts ...

In a recent study published in The Lancet Regional Health Western Pacific, researchers compare the immunogenicity, reactogenicity, and safety of a half-dose Pfizer-BioNTech BNT162b2 coronavirus ...

Learn about the safety and effectiveness of COVID-19 vaccines for kids, the possible side effects, and the benefits of vaccination.

A new study shows side effects of the Pfizer vaccine are less than trials predicted, encouraging news for those hesitant to get their shots for fear of adverse reaction. A report from Lancet ...