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**In the video, above, hear from Ohio’s top doctor on the coronavirus vaccine**

(AP) — New York City will soon require proof of COVID-19 vaccinations for indoor activities, Mayor Bill de Blasio announced Tuesday, making it the first big city in the U.S. to impose such restrictions.

The new requirement, which will go into effect Aug. 16, applies to indoor dining, gyms and indoor entertainment venues.

De Blasio has focused on getting as many New Yorkers vaccinated as possible while resisting calls to mandate masks indoors, as several cities and counties in California have done.

A man wears a face mask in Midtown Manhattan in New York on July 29 2021. – Every US federal worker must either declare they are fully vaccinated against Covid-19 or wear masks and be regularly tested, President Joe Biden was to announce July 29, 2021, the White House said, as his administration beefs up actions against the surging delta variant. The governors of New York and New Jersey on July 28, 2021 publicly backed the idea of indoor masking for vaccinated people in high Covid-19 risk areas. (Photo by Kena Betancur / AFP) (Photo by KENA BETANCUR/AFP via Getty Images)

De Blasio said Monday he was making “a strong recommendation” that everyone wear a mask in public indoor settings but stressed that the city’s “overwhelming strategic thrust” remained getting more people vaccinated.

The mayor announced last week that city employees would be required to get vaccinated by mid-September or to face weekly testing, and he has offered a $100 incentive for city residents who get inoculated.

About 66% of adults in New York City are fully vaccinated, according to official data.

On Monday, the U.S. reached President Joe Biden’s goal of getting at least one COVID-19 shot into 70% of American adult s — a month late and amid a surge by the delta variant that is overwhelming hospitals and prompting renewed pandemic regulations around the country.