Vaccine 3rd Dose Likely Needed Within 12 Months as Covid Variants Will Play 'Key Role': Pfizer CEO

Pfizer published a study earlier this month that said its jab is more than 91 percent effective at protecting against the coronavirus, and more than 95 percent effective against severe cases of Covid-19 up to six months after the second dose.

from Top World News- News18.com https://ift.tt/3uSOxoF