A medical worker in protective gear sprays mist on her colleague during a hot day at an outdoor clinic for coronavirus tests at a public health facility in the southwestern city of Gwangju, South Korea, 05 June 2020. (Photo by Yonhap/EPA/EFE)

South Korean residents 89-year-old Jeong Nam-poong and 80-year-old Jang Yoon-hui , wearing protective masks, dance at park after their daytime discotheque “colatec” has been closed amid the coronavirus disease (COVID-19) outbreak in Seoul, South Korea, May 19, 2020. (Photo by Minwoo Park/Reuters)

A man wearing a beard imprinted facemask as a preventive measure against the COVID-19 coronavirus walks along a street in New Delhi on June 19, 2020. India has recorded more than 380,000 cases of COVID-19, the fourth-highest in the world, with over 12,500 deaths, health ministry data show. (Photo by Jewel Samad/AFP Photo)

A woman wearing a protective face mask walks past a graffiti, after authorities eased lockdown restrictions that were imposed to slow the spread of the coronavirus disease (COVID-19), in Mumbai, India, June 12, 2020. (Photo by Hemanshi Kamani/Reuters)

Women are pictured wearing a protective face mask and face shield as the Indonesian government eases restrictions to prevent the spread of the coronavirus disease (COVID-19) outbreak in Jakarta, Indonesia, June 8, 2020. (Photo by Ajeng Dinar Ulfiana/Reuters)

A showgirl in a face mask stands by the door at the reopening of Bally's Las Vegas hotel and casino, Thursday, July 23, 2020, in Las Vegas. The casino reopened for the first time since March following a closure to prevent the spread of the coronavirus. (Photo by John Locher/AP Photo)

Commuters wearing face masks jostle for a ride on a bus discarding social distancing guidelines in Kolkata, India, Tuesday, July 21, 2020. With a surge in coronavirus cases in the past few weeks, state governments in India have been ordering focused lockdowns in high-risk areas to slow down the spread of infections. (Photo by Bikas Das/AP Photo)

A boy attends Eid al-Adha prayers on the street outside Abu Hanifa mosque in Baghdad Adhamiya district, during the outbreak of the coronavirus disease (COVID-19), in Iraq, July 31, 2020. (Photo by Thaier Al-Sudani/Reuters)