An interval of eight-to-10 weeks between doses of the Pfizer vaccine boosts the effectiveness of the two-shot regimen, according to a U.K. study
STUDY: #Pfizer vaccine highly effective against delta variant. Thoughts?
The Biden administration purchased an additional 200 million doses of Pfizer-BioNTech's Covid-19 vaccine to prepare for potential additional vaccine needs in the US
BREAKING: "We've now purchased enough vaccine supply to vaccinate all Americans," President Biden says after announcing the purchase of 200M more coronavirus vaccines (100M Moderna, 100M Pfizer). "We're now on track to have enough supply for 300M Americans by the end of July."
Covid-19 vaccine more than 90% effective in preventing disease in preliminary results, says drugs firm Pfizer