Passengers wearing face masks are seen on a bus in Bucharest, Romania, on August 1, 2020. Mask-wearing is being made mandatory in crowded outdoor public places in nearly half of Romania starting Saturday, as over 1,000 new COVID-19 cases have been confirmed daily for almost two weeks in the country. (Photo by Gabriel Petrescu/Xinhua)

Passengers wearing face masks are seen on a bus in Bucharest, Romania, on August 1, 2020. Mask-wearing is being made mandatory in crowded outdoor public places in nearly half of Romania starting Saturday, as over 1,000 new COVID-19 cases have been confirmed daily for almost two weeks in the country. (Photo by Gabriel Petrescu/Xinhua)

A Romanian Policeman checks the use of masks of passengers on a bus, in Bucharest, Romania, on August 1, 2020. Mask-wearing is being made mandatory in crowded outdoor public places in nearly half of Romania starting Saturday, as over 1,000 new COVID-19 cases have been confirmed daily for almost two weeks in the country. (Photo by Gabriel Petrescu/Xinhua)

A Romanian Policeman stops a bus to check the use of masks of the passengers, in Bucharest, Romania, on August 1, 2020. Mask-wearing is being made mandatory in crowded outdoor public places in nearly half of Romania starting Saturday, as over 1,000 new COVID-19 cases have been confirmed daily for almost two weeks in the country. (Photo by Gabriel Petrescu/Xinhua)