Anthony Fauci, the White House chief medical adviser, said on Sunday top US health officials were discussing whether to revise mask guidance for Americans vaccinated against Covid-19.

“This is under active consideration,” Fauci told CNN’s State of the Union, though he also emphasized that local governments can issue their own rules under current guidance from the Centers for Disease Control and Prevention (CDC).

At a White House on Thursday the surgeon general, Vivek Murthy, said 97% of hospital admissions and 99.5% of Covid deaths were occurring among unvaccinated people.

Lucas said the focus in Kansas City was on getting people vaccinated and that his city did not currently have plans to re-introduce mask requirements, though it was something he had considered.

Adams wrote that he initially agreed with the CDC’s guidance in May that vaccinated people no longer needed to wear masks, hoping it would encourage vaccinations.

On CBS, Adams compared the situation to when public health officials last year told people to not use N95 masks because they needed to be reserved for medical professionals.

In hindsight, he said, he wished that guidance had been less definitive because many interpreted it as a signal that masks didn’t work