Prognosis

Fed’s Shot Mandate; Moderna, Pfizer Tout Boosters: Virus Update

Pfizer Points to Waning Immunity in Need for Booster Shots
Lock
This article is for subscribers only.

Pfizer Inc. and Moderna Inc. pushed for booster shots, saying separately the immunity offered by their Covid-19 vaccines may wane over time.

U.S. President Joe Biden met with executives who’ve taken steps to require employees to be vaccinated, turning to businesses to drive a new wave of inoculations. The number of people getting a first dose is declining again in the U.S. after a fleeting uptick in August, underscoring Biden’s challenge.