Some vaccine doses kept too cold, Pfizer having manufacturing issues, US officials say
Officials are investigating whether storing the vaccines at excessively cold temperatures poses a safety or efficacy risk.
Thu Dec 17 2020
Explainer: What do the UK allergic reaction cases mean for Pfizer's COVID-19 vaccine
Two people reported adverse reactions on the first day of the vaccine rollout in the UK. Here's what you need to know.
Thu Dec 10 2020
With vaccine drawing closer, U.S. tops 15 million coronavirus cases
With the virus showing no sign of abating, health officials are sounding the alarm of further spread when people gather for holidays.
Wed Dec 09 2020
COVID-19 wrecked 2020. Will 2021 be different?
With the prospect of several vaccines coming online, experts say it's possible 2021 will return to a semblance of normality.
Thu Dec 03 2020