The day before, Mr. de Blasio said he did not plan to commission the masks, noting that they were already required in many public areas, such as schools, hospitals and subways.
“People need to be vaccinated, period,” Mr. de Blasio said. “Nothing will do what a vaccination will do.”
In late June, when delta cases in the United States began to increase, Dr. Robert Wachter, chair of the department of medicine at the University of California, San Francisco, said he believed the areas needing protection the most — those with the lowest rate of full vaccination — May be the least likely to take precautions.
“What you’ll see is kind of a strange version of what you’re actually seeing in some places in the country, where the people who are most likely to wear masks inside are the people who have been vaccinated,” he said. “They need them less than unvaccinated people, but they are not confident that unvaccinated people wear them.”
Southern states that have seen spikes in reported infections are moving away from mask mandates.
In Mississippi, where only 34 percent of the population is fully vaccinated, intensive care capacity in some hospitals is running out due to Covid, the state’s health official, Dr. Thomas E. Dobbs III, Tuesday.
the A country he called recently دعا Population 65 and older or with chronic medical conditions to avoid large indoor gatherings, children 12 and older should be vaccinated, and for unvaccinated people to wear masks in public, but it stopped short of a commitment.
In Texas, where only 43 percent of the population has been fully vaccinated, there has been a 194 percent increase in the number of people testing positive in the past two weeks, according to the New York Times Tracker.