A waiter wearing a protective face mask carries drinks to clients as he walks past a bulldog sculpture, at a reopened street cafe in the center of Kiev on May 21, 2020, as Ukraine partially lifts some restrictions imposed to curb the spread of the COVID-19 outbreak, caused by the novel coronavirus. (Photo by Sergei SUPINSKY / AFP)

A waiter wearing a protective face mask carries drinks to clients as he walks past a dog sculpture, at a reopened street cafe in the center of Kiev on May 21, 2020, as Ukraine partially lifts some restrictions imposed to curb the spread of the COVID-19 outbreak, caused by the novel coronavirus. (Photo by Sergei SUPINSKY / AFP)