The Bay Area was set to begin it's phase 3 trials of AstraZeneca's COVID-19 vaccine, but now the entire study is on hold after a trial participant became ill.

The Moderna vaccine is the third vaccine to be made available in the UK after Pfizer and AstraZeneca.

While the push is on to get more of the COVID-19 vaccine, there is some hope on the horizon as both Johnson & Johnson and AstraZeneca are nearing the end of their vaccine trials.

AstraZeneca announced Monday its coronavirus vaccine candidate has entered the final testing stage in the U.S. The Cambridge, England-based company said the study will involve up to 30,000 adults ...

As AstraZeneca intends to file for emergency use authorization, Americans may soon have four options for a COVID-19 vaccine. Here are the key differences between them.

In the weeks before the shooting at the CDC headquarters, posts tying Covid vaccines to mental illness accrued millions of views.

LONDON — Europe's medicines regulator found a possible link between the coronavirus vaccine developed by AstraZeneca and the University of Oxford and rare blood clotting issues — though it ...

Moderna is now testing out its potential COVID-19 vaccine boosters for protection against emerging variants.