Biden says will have enough COVID-19 vaccine for every US adult by May
Biden also said plants already making J&J's vaccine would step up their output, producing 24 hours a day, 7 days a week.
Wed Mar 03 2021
Biden tours Pfizer vaccine plant as drugmaker promises to double supply
Biden challenged the company to deliver even earlier the 300 million doses of the vaccine it has agreed to supply by the end of July.
Sat Feb 20 2021
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