Aerial photo taken on March 27, 2020 shows the construction site of a temporary hospital in the suburbs of Moscow, Russia. Russia is constructing its first temporary hospital at a location about 60 kilometers southwest of Moscow to fight the pandemic of COVID-19. (Sputnik/Handout via Xinhua)

Workers work at the construction site of a temporary hospital in the suburbs of Moscow, Russia, March 28, 2020. Russia is constructing its first temporary hospital at a location about 60 kilometers southwest of Moscow to fight the pandemic of COVID-19. (Sputnik/Handout via Xinhua)

Workers work at the construction site of a temporary hospital in the suburbs of Moscow, Russia, March 28, 2020. Russia is constructing its first temporary hospital at a location about 60 kilometers southwest of Moscow to fight the pandemic of COVID-19. (Sputnik/Handout via Xinhua)