Oxford-AstraZeneca promised its COVID-19 vaccine would be effective, cheap and available worldwide. Five months after its launch, the path forward has been anything but smooth.
The Danish Health Authority said it will continue its vaccination campaign without the shot made by AstraZeneca, but said its benefits outweigh the risks for those who do get it.
One of the hottest areas of research right now: studies to determine how well current vaccines work against emerging coronavirus "variants of concern."
The European Medicines Agency said Wednesday that blood clots should be listed as a possible but rare side effect of the AstraZeneca COVID-19 vaccine, stressing the shot's benefits outweigh the risks.
Some Mexicans with family ties or dual citizenship in the U.S., or who can afford the airfare, head north of the border to get vaccinated faster than the months of waiting for one back home.
The German chancellor announces an intensified coronavirus lockdown going into Easter, warning that new mutations raise the specter of a potentially deadly "third wave" of COVID-19.
In an unusual post-midnight statement, the National Institute of Allergy and Infectious Diseases said AstraZeneca might have used old data for its COVID-19 vaccine trial.