Additional Covid-19 vaccine booster shots are not needed for the general population, leading scientists including two departing senior US Food and Drug Administration officials and several from the World Health Organization (WHO) said in an article published in a medical journal on Monday.

The scientists said more evidence was needed to justify boosters. That view disagrees with US 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...