A pedestrian wearing a form of PPE (personal protective equipment) of a perspex full-face covering, as a precautionary measure against COVID-19, walks across Oxford Street in central London on June 11, 2020, as non-essential shops prepare to re-open on June 15. Britain's current guidelines on social distancing remain at two metres (2M), but business leaders and some politicians are on Thursday calling for it to be reduced to one (1M), or one-and-a-half (1.5M) metres. (Photo by Justin Tallis/AFP Photo)

A policeman controls traffic at 42nd Street and 7th Avenue as New York City remains without electricity caused by a blackout that affected the entire city and most of the eastern part of the nation August 15, 2003 in New York, New York. More than 50 million people were affected by the outage, in Toronto, Detroit, Cleveland and New York City. (Photo by Jose Jimenez/Primera Hora/Getty Images)

A suspected Vietcong is kicked by a Vietnamese soldier holding a rifle as another soldier attempts to tie his hands on October 22, 1965. The prisoner was one of 15 captured October 21 near Xom Chua when government troops raided in the plain of reeds area. Troops killed 43 suspected Vietcong and seized some arms. (Photo by Richard Merron/AP Photo)

A couple wearing masks as a precaution against the spread of the new coronavirus walk on the Malecon seawall at sunset in Havana, Cuba, Monday, August 31, 2020. Cuban authorities will introduce new measures starting tomorrow Tuesday aimed at containing the spread of the coronavirus in Havana among others a curfew from 7 pm until 5 am and no one without special permission will be able to enter or leave the province. The new measures will last at least 15 days. (Photo by Ramon Espinosa/AP Photo)

A Kashmiri Muslim bride looks through her veil during a mass wedding event in Srinagar, Indian controlled Kashmir, Thursday, June 15, 2023. Mass weddings in India are organized by social organizations primarily to help the economically backward families who cannot afford the high ceremony costs as well as the customary dowry and expensive gifts that are still prevalent in many communities. (Photo by Mukhtar Khan/AP Photo)

A young girl tries to catch snow on her tongue near the Martin Luther King Jr. Memorial, before the start of a wreath-laying ceremony honoring the legacy of the late civil rights leader in Washington, DC on January 15, 2024. The ceremony is being held to honor the civil rights leader on the anniversary of his birthday. (Photo by Andrew Caballero-Reynolds/AFP Photo)

An indigenous man of Mahmeri tribe wearing a costume of Puteri Gunung Ledang character receives a dose of the vaccine against Covid-19 in Banting, near Kuala Lumpur, Malaysia,15 August 2021. Malaysia recorded another 20,670 new Covid-19 cases on 14 August, bringing the cumulative total to 1,384,353 cases. (Photo by Ahmad Yusni/EPA/EFE)

A rescue team flies on a Colombian Air Force helicopter during an earthquake emergency drill with Air Force troops from Colombia, Brazil, Ecuador, Bolivia and the United States at the Palenquero Air Force base in Puerto Salgar, Cundinamarca department, Colombia, on September 2, 2021. Air Force crews from 15 countries take part in the “Angel de los Andes” exercises, where they simulated several rescue operations in different scenarios. (Photo by Joaquin Sarmiento/AFP Photo)