Pfizer sees waning immunity from its Covid-19 vaccine, says developing new booster; Pfizer said it would seek emergency use authorization from the US Food and Drug Administration for a booster dose in August after releasing more data about how well a third, booster dose of vaccine works.

Pfizer sees waning immunity from its Covid-19 vaccine, says developing new booster; Pfizer said it would seek emergency use authorization from the US Food and Drug Administration for a booster dose in August after releasing more data about how well a third, booster dose of vaccine works.: https://ift.tt/3k4o6ul Read more... https://ift.tt/3xuG1y7