Additional COVID-19 vaccine booster shots are not needed for the general population, leading scientists including two departing senior U.S. Food and Drug Administration officials and several from the World Health Organization said in an article published in medical journal Lancet.
The scientists said more evidence was needed to justify boosters. That view disagrees with the U.S. government plans to begin offering another round of shots to many fully vaccinated Americans as soon as next week, contingent on approval from health regulators.
As COVID-19 cases caused by the Delta variant of the virus rise, President Joe Biden’s administration is concerned that infections among those already vaccinated are a sign that their protection is waning and has pushed boosters as a way to rebuild immunity.
The WHO has argued vaccines are still needed for first doses around the globe and boosters could also prove risky if introduced too soon or too frequently.