South Africa study shows boosters failed to block omicron, bolstering case for face masks, distancing and hand washing January 21, 2022January 21, 2022
Study Finds Two Pfizer Vaccine Doses Offer Less Protection Against Omicron Than Against Delta December 14, 2021December 14, 2021
Pfizer Says Booster Neutralized Omicron but Variant May Elude Two Doses December 8, 2021December 8, 2021
BioNTech CEO reportedly says a different COVID vaccine may be needed by next year October 4, 2021October 4, 2021
Biden Administration Plans Covid-19 Vaccine Boosters Starting at Six Months Instead of Eight August 25, 2021
Covid-19 Booster Shot to Be Offered to People Fully Vaccinated With Pfizer, Moderna August 18, 2021August 18, 2021