
Vaccine news: Pfizer announced today the results of a study, which shows their COVID-19 vaccine is 90% effective for at least 6 months—and protects against the South Africa variant.
01 Apr, 2021 - VACCINE UPDATES -
This comes after yesterday's announcement that their coronavirus vaccine was 100% effective in preventing COVID-19 in children ages 12 to 15. www.usatoday.com