| In this Aug. 26, 2020, file photo, the face on a replica of the Statue of Liberty covers with a protective face mask against the coronavirus. The 1/18th scale replica on Seattle's Alki Beach was erected in 1952 and recast in 2006. AP |
| A face mask-clad student walks through a gate equipped with disinfectant spray as part of measures against the COVID-19 coronavirus in Phnom Penh on September 7, 2020, as schools reopen across the country. AFP |
| A woman wearing a face mask travels inside a Delhi metro train, on the first day of the restart of their operations, amidst the spread of coronavirus disease (COVID-19), in New Delhi, India, September 7, 2020. Reuters |
| A man wearing a face mask walks across a pedestrian bridge in Marseille, southern France, Monday, Sept. 7, 2020. AP |
| A woman wears a face mask as she walks by a mural on a street in Montreal, Monday, Sept. 7, 2020, as the COVID-19 pandemic continues in Canada and around the world. AP |
| A demonstrator wearing a face mask reading 'Out Bolsonaro' attends the Grito dos Excluidos (Cry of the Excluded) as part of a demonstration against the President Jair Bolsonaro government during Brazilian Independence Day in Sao Paulo, Brazil September 7, 2020. Reuters |
| Myanmar leader Aung San Suu Kyi gestures while wearing a face shield, mask and gloves during a flag-raising ceremony to mark the first day of election campaigning at the National League for Democracy party's temporary headquarters in Naypyitaw, Myanmar on Tuesday, September 8, 2020. AP |
| Wearing a face mask to reduce the risk from the coronavirus, Democratic presidential nominee Joe Biden meets with veterans and union leaders in the backyard of a supporter on Labor Day September 07, 2020 in Lancaster, Pennsylvania. AFP |
| In this photo released by the official website of the office of the Iranian Presidency, President Hassan Rouhani, right, welcomes Swiss Foreign Minister Ignazio Cassis as they wear protective face masks to help prevent spread of the coronavirus, at the presidency office in Tehran, Iran, Monday, Sept. 7, 2020. AP |
| Pope Francis takes off his face mask as he arrives by car to hold a limited public audience at the San Damaso courtyard in The Vatican on September 9, 2020 during the COVID-19 infection, caused by the novel coronavirus. AFP |
| Attendees wearing face masks watch an event to honor some of those involved in China's fight against COVID-19 at the Great Hall of the People in Beijing, Tuesday, Sept. 8, 2020. AP |
| Wearing masks amid the new coronavirus pandemic, sex workers protest asking the government to lift restrictions on their work, in La Paz, Bolivia, Tuesday, Sept. 8, 2020. AP |
| A woman wearing a face mask as a protective measure against the coronavirus disease (COVID-19) is seen during festivities to honor the Virgin of Santa Rosa de Lima, in Jujuy, Argentina August 28, 2020. Picture taken August 28, 2020. Reuters |
| Ultra-Orthodox Jews keep social distancing and wearing face masks during a morning prayer next to their houses as synagogues are limited to twenty people following the government's measures to help stop the spread of the coronavirus, in Bnei Brak, Israel, Tuesday, Sept 8, 2020. AP |
| Paraprofessional Jaevon Walton, center, reminds a student to wear his face mask in a learning pod of second through seventh graders at Harvest Best Academy, Tuesday, Sept. 8, 2020, in Minneapolis. AP |
| A child wearing a face mask as a protective measure against the coronavirus disease (COVID-19) is seen at a street market, in Jujuy, Argentina August 28, 2020. Picture taken August 28, 2020. Reuters |
| alestinians wearing protective face masks amid the ongoing coronavirus COVID-19 pandemic in Gaza port, Gaza City, 10 September 2020. EPA |
| In this file photograph taken on April 22, 2020, a woman in a mask walks past a mural of a hand on the side of a building in Midtown, New York City. AFP |
| Two women wearing face masks enter an underpass before a poster commemorating the 72nd anniversary of the founding of North Korea, in Pyongyang on September 9, 2020. AFP |
| A couple wearing face masks walk along a boulevard in Barcelona, Spain on Wednesday Sept. 9, 2020. AP |