(Reuters) -Around 3.9 million people in the United States received updated COVID-19 booster shots over the past week, the Centers for Disease Control and Prevention said on... TOKYO (Reuters) -A ...

Conservative commentator Megyn Kelly claimed the Pfizer COVID vaccine left her with an auto-immune disorder in explosive new comments on her latest podcast episode Wednesday. Kelly, 54 ...

Pfizer's Covid-19 vaccine is considered by healthcare authorities to be safe and effective, with data gathered from billions ...

American journalist Megyn Kelly has claimed that she developed an "autoimmune condition" after taking two doses of the Pfizer COVID-19 vaccine and a follow-up booster in 2021. In her podcast ...

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

Among the limitations acknowledged by the authors are that they couldn’t be sure that the subjects’ ailments might have stemmed from infections with COVID itself, rather than vaccination.

“The effectiveness of the COVID vaccines can vary depending on which variants are targeted in the vaccine, which variants are circulating, and host factors,” said Shirin A. Mazumder, MD, and ...

This new type of vaccine, which is based on the same technology as the Covid vaccines first developed by BioNTech and Moderna, is seen by many as a potential breakthrough in the fight against cancer.

A group of researchers last week released a small, preliminary paper theorizing that Covid ... vaccine. There were cases among people who received most of the vaccines used in the U.S. — Pfizer ...

Yale researchers have found "differences in immune profiles" among those who struggle with negative reactions to the Covid vaccine Spencer Platt/Getty Scientists are trying to understand why a ...

For a majority of people, the COVID vaccine doesn’t cause adverse health effects — but a small percentage experience chronic symptoms that can last for months or even years. Yale researchers ...