People wearing face masks and gloves to protect against coronavirus, observe social distancing guidelines as they go down the subway on the escalator in Moscow, Russia, Tuesday, May 12, 2020. From Tuesday onward, wearing face masks and latex gloves is mandatory for people using Moscow's public transport. President Vladimir Putin on Monday declared an end to a partial economic shutdown across Russia due to the coronavirus pandemic, but he said that many restrictions will remain in place. (Photo by Alexander Zemlianichenko/AP Photo)





A Russian Emergency Situation worker disinfects people leaving a hospital near the scene of a fire at St. George Hospital in St. Petersburg, Russia, Tuesday, May 12, 2020. A fire at St. George Hospital has killed five coronavirus patients. Russian emergency officials said all five had been put on ventilators. The emergency officials told the state Tass new agency the fire broke out in an intensive care unit and was put out within half an hour. (Photo by Dmitry Lovetsky/AP Photo)





Medical face masks and portraits of St.Petersburg's medical workers who died from coronavirus infection during their work, hang at a unofficial memorial in front of the local health department in St.Petersburg, Russia, Thursday, May 14, 2020. (Photo by Dmitri Lovetsky/AP Photo)





Cemetery workers wearing protective equipment bury a coronavirus victim at a cemetery on the outskirts of Moscow on May 15, 2020. (Photo by Kirill Kudryavtsev/AFP Photo)





Medical workers wearing protective gear walk after an evacuation at Spasokukotskogo Hospital in Moscow, Russia, Saturday, May 9, 2020. A fire at a Moscow hospital treating people infected by the coronavirus killed one patient and forced the evacuation of about 200 others. (Photo by Pavel Golovkin/AP Photo)





Russian army officers wearing face masks to protect against coronavirus walk in St.Petersburg, Russia, Tuesday, May 19, 2020. Russia has continued to see a steady rise of new infections, and new hot spots have emerged across the vast country of 147-million people that ranks the second in the world behind the United States in the number of coronavirus cases. (Photo by Dmitri Lovetsky/AP Photo)





Fireworks explode over Moscow buildings during the celebration of the 75th anniversary of the Nazi defeat in World War II in Moscow, Russia, Saturday, May 9, 2020. Russian President Vladimir Putin has marked Victory Day, the anniversary of the defeat of Nazi Germany in World War II, in a ceremony shorn of its usual military parade and pomp by the coronavirus pandemic. (Photo by Denis Tyrin/AP Photo)





Women wearing face masks to protect against coronavirus look at their smartphones in downtown St.Petersburg, Russia, Monday, May 11, 2020. Russian President Vladimir Putin has declared an end to a nationwide partial economic shutdown but noted that some restrictions will remain. (Photo by Dmitri Lovetsky/AP Photo)





A passenger wearing a protective mask walks on a platform at a metro station in Moscow on May 11, 2020, during a strict lockdown in Russia to stop the spread of the COVID-19 infection caused by the novel coronavirus. President Vladimir Putin said that Russia's non-working period imposed to contain the spread of the coronavirus will be lifted from May 12. (Photo by Kirill Kudryavtsev/AFP Photo)





People wearing face masks and gloves to protect against coronavirus, observe social distancing guidelines as they ride a carriage in the subway on the escalator in Moscow, Russia, Wednesday, May 13, 2020. Wearing face masks and latex gloves is mandatory for people using Moscow's public transport. President Vladimir Putin declared an end to a partial economic shutdown across Russia due to the coronavirus pandemic, but he said that many restrictions will remain in place. (Photo by Alexander Zemlianichenko/AP Photo)





A mourner wearing a protective face mask throws ground into the grave of Orthodox deacon Andrei Molchanov, 54, who died after contracting the coronavirus disease (COVID-19), during a funeral at a cemetery in Moscow, Russia on May 9, 2020. (Photo by Evgenia Novozhenina/Reuters)





Elderly people, including veteran Pyotr Beznosenko, sit on a bench and receive congratulations during the celebrations of Victory Day, which marks the anniversary of the victory over Nazi Germany in World War Two, amid the outbreak of the coronavirus disease (COVID-19) in the town of Tara in Omsk Region, Russia on May 9, 2020. (Photo by Alexey Malgavko/Reuters)





Guests congratulate a newly-wed couple outside a marriage registration building in Moscow, Russia, April 8, 2020. (Photo by Sergei Kiselyov/Moscow News Agency via Reuters)





Grave diggers wearing personal protective equipment (PPE) walk away after burying a person, who presumably died of the coronavirus disease (COVID-19), in the special purpose section of a graveyard on the outskirts of Saint Petersburg, Russia on May 13, 2020. (Photo by Anton Vaganov/Reuters)





A woman waves a Victory Banner in Tverskaya Street on the day of the 75th anniversary of the victory over Nazi Germany in World War II on May 9, 2020. Moscow Mayor Sobyanin has extended the self-isolation regime in Moscow till May 31, 2020 to prevent the spread of the novel coronavirus. (Photo by Sergei Fadeichev/TASS via Getty Images)





A girl seen on a zebra crossing in Bolshaya Dorogomilovskaya Street during the ongoing COVID-19 pandemic. Moscow Mayor Sergei Sobyanin made mandatory wearing face masks and gloves in public places and on public transport since May 12. The Moscow authorities also extended the self-isolation regime through May 31 in order to prevent the spread of the novel coronavirus infection. (Photo by Gavriil Grigorov/TASS via Getty Images)





Workers of Ministry of Emergency Situations wearing protective suits disinfect themselves after the disinfection of Vitebsky railway station to prevent the spread of coronavirus (COVID-19). Russia has recorded at least 290678 cases and 2722 deaths by the COVID-19 disease. (Photo by Sergei Mikhailichenko/SOPA Images/Rex Features/Shutterstock)





An elderly woman seen on a city street in Moscow, Russia on May 13, 2020. The self-isolation regime in Moscow has been extended until 31 May 2020 to combat the spread of the novel coronavirus (COVID-19). (Photo by Stanislav Krasilnikov/TASS via Getty Images)





People with a dog ride a car on Naberezhnaya Tarasa Shevchenko Street in Moscow, Russia on May 11, 2020, during the pandemic of the novel coronavirus disease (COVID-19). Seen in the distance are the skyscrapers of the Moscow International Business Centre. Since 30 March 2020, Moscow has been in lockdown, which has been extended till 31 May. Earlier, the Russian government announced a nationwide paid period off work for employed people, which was extended till the 11 May inclusively. As of 11 May 2020, Russia has reported more than 221,400 confirmed cases of the novel coronavirus infection, with more than 115,900 confirmed cases in Moscow. (Photo by Sergei Bobylev/TASS)





A worker cleans letters on the wall of the Russian State Duma (the lower house of the parliament) in central Moscow on May 17, 2020, during a strict lockdown in Russia to stop the spread of the novel coronavirus COVID-19. (Photo by Yuri Kadobnov/AFP Photo)