US CDC director said those who had vaccinated with Covid-19 are not required to wear masks in most cases, contrary to WHO recommendations.
Local officials need to make their regional appropriate policies.
Dr. Walensky also emphasized if vaccinated with Covid-19, the injection will be safe before the strains are spreading in the United States.
WHO must make recommendations for the whole world.
American people wear and do not wear masks in Washington capital on May 14.
As of June 30, at least 66.5% of Americans have been injected with a dose of Covid-19 and 57.4% vaccinated vaccination.
However, before the concern about Delta's transformation with a stronger ability to spread, controversy about hot masks in the US.
The fourth 19 Covid-19 wave spread most of the country.