A small study on Covid vaccine safety has sparked an online tempest — and highlighted the conundrum faced by some scientists.

I asked the rheumatologist if it could be linked to the Pfizer vaccine and booster, and she said, ‘Yes, and you’re not the only patient I have who’s had this sequence of ...

American journalist Megyn Kelly has claimed that she developed an "autoimmune condition" after taking two doses of the Pfizer ...

Novavax's fourth-quarter loss narrowed on Thursday, helped by reduced selling and administrative expenses of COVID-19 ...

COVID-19 vaccines target emerging variants, offering improved protection. Learn about their effectiveness, timing, and safety ...

Megyn Kelly made some big claims on her latest podcast episode on Wednesday, claiming that the Pfizer COVID vaccine left her with an auto-immune disorder. The 54-year-old stated t ...

Health care providers say that hesitation and outright resistance to vaccines have become disturbingly common even in ...

Multiple vaccine shots are needed to boost vasculitis patients’ immunity against COVID, especially if they have been treated ...

The Trump administration confirmed it is reevaluating a $590 million human bird flu vaccine contract awarded to Moderna in ...