NLD supporter wears party-themed headwear in front of the Myanmar embassy during a rally after the military seized power from a democratically elected civilian government and arrested its leader Aung San Suu Kyi, in Bangkok, Thailand February 1, 2021. REUTERS/Athit Perawongmetha

Protester wearing "Free Burma" headwear rallies against Myanmar's military after it seized power from a democratically elected civilian government and arrested its leader Aung San Suu Kyi, at United Nations University in Tokyo, Japan February 1, 2021. REUTERS/Issei Kato

A passenger approaches two airline workers in Christmas themed headwear at Ronald Reagan Washington National Airport, in Arlington, Virginia, U.S., December 22, 2020. REUTERS/Kevin Lamarque

Woman wearing a Christmas decorations headwear swims during a largest winter swimming relay in Tallinn, Estonia, December 11, 2020. Picture taken December 11, 2020. REUTERS/Janis Laizans

Woman wearing a Christmas decorations headwear swims during a largest winter swimming relay in Tallinn, Estonia, December 11, 2020. Picture taken December 11, 2020. REUTERS/Janis Laizans

Artists wear colourful "deconfinement hats" made of paper mache and inspired by Song dynasty headwear, for social distancing, at 59 Rivoli gallery in Paris as it prepares a general reopening later in the week, following the outbreak of the coronavirus disease (COVID-19) in France, June 3, 2020. Picture taken June 3, 2020. REUTERS/Benoit Tessier

An artist wears a colourful "deconfinement hat" made of paper mache and inspired by Song dynasty headwear, for social distancing, at 59 Rivoli gallery in Paris as it prepares a general reopening later in the week, following the outbreak of the coronavirus disease (COVID-19) in France, June 3, 2020. Picture taken June 3, 2020. REUTERS/Benoit Tessier

Artists wear colourful "deconfinement hats" made of paper mache and inspired by Song dynasty headwear, for social distancing, at 59 Rivoli gallery in Paris as it prepares a general reopening later in the week, following the outbreak of the coronavirus disease (COVID-19) in France, June 3, 2020. Picture taken June 3, 2020. REUTERS/Benoit Tessier

Artists wear colourful "deconfinement hats" made of paper mache and inspired by Song dynasty headwear, for social distancing, at 59 Rivoli gallery in Paris as it prepares a general reopening later in the week, following the outbreak of the coronavirus disease (COVID-19) in France, June 3, 2020. Picture taken June 3, 2020. REUTERS/Benoit Tessier

An artist wears a colourful "deconfinement hat" made of paper mache and inspired by Song dynasty headwear, for social distancing, at 59 Rivoli gallery in Paris as it prepares a general reopening later in the week, following the outbreak of the coronavirus disease (COVID-19) in France, June 3, 2020. Picture taken June 3, 2020. REUTERS/Benoit Tessier

Artists wear colourful "deconfinement hats" made of paper mache and inspired by Song dynasty headwear, for social distancing, at 59 Rivoli gallery in Paris as it prepares a general reopening later in the week, following the outbreak of the coronavirus disease (COVID-19) in France, June 3, 2020. Picture taken June 3, 2020. REUTERS/Benoit Tessier

Gaspard Delanoe, 59 Rivoli gallery director, wearing a protective face mask, gestures with a colourful "deconfinement hat" made of paper mache and inspired by Song dynasty headwear, for social distancing, at the gallery in Paris as it prepares a general reopening later in the week, following the outbreak of the coronavirus disease (COVID-19) in France, June 3, 2020. Picture taken June 3, 2020. REUTERS/Benoit Tessier

Artists wear colourful "deconfinement hats" made of paper mache and inspired by Song dynasty headwear, for social distancing, at 59 Rivoli gallery in Paris as it prepares a general reopening later in the week, following the outbreak of the coronavirus disease (COVID-19) in France, June 3, 2020. Picture taken June 3, 2020. REUTERS/Benoit Tessier

An artist wears a colourful "deconfinement hat" made of paper mache and inspired by Song dynasty headwear, for social distancing, at 59 Rivoli gallery in Paris as it prepares a general reopening later in the week, following the outbreak of the coronavirus disease (COVID-19) in France, June 3, 2020. Picture taken June 3, 2020. REUTERS/Benoit Tessier

Dominique Pouzol, artist and creator of "deconfinement hats" made of paper mache and inspired by Song dynasty headwear, for social distancing, poses at 59 Rivoli gallery in Paris as it prepares a general reopening later in the week, following the outbreak of the coronavirus disease (COVID-19) in France, June 3, 2020. Picture taken June 3, 2020. REUTERS/Benoit Tessier

A carpenter wearing protective gear sanitises his carpentry, as the spread of coronavirus disease (COVID-19) continues, in Rome, Italy, April 27, 2020. REUTERS/Remo Casilli

A protective mask is seen on a window during the outbreak of the coronavirus disease (COVID-19) in the Brooklyn borough of New York City, U.S., April 26, 2020. REUTERS/Jeenah Moon TPX IMAGES OF THE DAY

A person in a face mask walks in front of the Manhattan skyline during the outbreak of the coronavirus disease (COVID-19) in Brooklyn borough of New York City, U.S., April 24, 2020. REUTERS/Andrew Kelly

A protective face mask is seen on the pavement in Paris during a lockdown imposed to slow the rate of the coronavirus disease (COVID-19) in France, April 24, 2020. REUTERS/Charles Platiau

A Muslim woman wearing a protective face mask plays with a cat near a closed mosque on the first day of the holy fasting month of Ramadan, amid the coronavirus disease (COVID-19) outbreak, in Bangkok, Thailand April 24, 2020. REUTERS/Soe Zeya Tun

Protective masks for sale are seen, as the spread of the coronavirus disease (COVID-19) continues in Erfurt, Germany, April 24, 2020. REUTERS/Karina Hessland

Protective masks for sale hang in a shop window, as the spread of the coronavirus disease (COVID-19) continues in Erfurt, Germany, April 24, 2020. REUTERS/Karina Hessland

Workers wearing face masks are seen either side of a protective screen in a public office as Italy is getting ready to ease some lockdown measures, including the reopening of some work activities as the spread of the coronavirus disease (COVID-19) continues in Rome, Italy, April 24, 2020. REUTERS/Yara Nardi TPX IMAGES OF THE DAY

A Muslim man wearing a protective face mask prays at a mosque on the first day of the holy fasting month of Ramadan, amid the coronavirus disease (COVID-19) outbreak, in Bangkok, Thailand April 24, 2020. REUTERS/Jorge Silva TPX IMAGES OF THE DAY

A discarded mask is seen on the ground, as the global outbreak of coronavirus disease (COVID-19) continues, in Los Angeles, California, U.S., April 23, 2020. REUTERS/Lucy Nicholson

A camera of a thermal imaging system is seen inside a public hospital to measure temperature and identify people potentially infected with the coronavirus disease (COVID-19) in Valparaiso, Chile April 23, 2020. REUTERS/Rodrigo Garrido

A discarded face mask is seen on the floor, as the spread of the coronavirus disease (COVID-19) continues, in Northwich, Britain April 23, 2020. REUTERS/Molly Darlington

A woman waits to receive free protective masks that have been bought by evangelicals in China and are distributed by Members of the Evangelical Christian Church, as the spread of the coronavirus disease (COVID-19) continues, in Rome, April 22, 2020. REUTERS/Yara Nardii

A member of the Evangelical Christian Church distributes for free protective masks that have been bought by evangelicals in China, as the spread of the coronavirus disease (COVID-19) continues, in Rome, April 22, 2020. REUTERS/Yara Nardii

A farmer carries chrysanthemum flowers from his field for sale during the coronavirus disease (COVID-19) outbreak in Hanoi, Vietnam April 22, 2020. REUTERS/Kham

A health official removes the protective gear after collecting samples from people at a fish market during the curfew amid concerns about the spread of the coronavirus disease (COVID-19), in Colombo, Sri Lanka, April 22, 2020. REUTERS/Dinuka Liyanawatte

A man reacts as a health official uses a swab to collect a sample at a fish market during the curfew amid concerns about the spread of the coronavirus disease (COVID-19), in Colombo, Sri Lanka, April 22, 2020. REUTERS/Dinuka Liyanawatte

A face mask used to protect from the coronavirus disease (COVID-19) is seen on the grass near a logistics center in Lauwin-Planque, northern France, April 22, 2020. REUTERS/Pascal Rossignol

A medical specialist wearing protective gear closes a door of a hospital for patients infected with the coronavirus disease (COVID-19) on the outskirts of Moscow, Russia April 21, 2020. REUTERS/Tatyana Makeyeva

People wearing protective face masks exercise during the coronavirus disease (COVID-19) outbreak, in Chon Buri province, east of Bangkok, Thailand April 21, 2020. REUTERS/Soe Zeya Tun

An animal figure made of straw with a mouth guard on, stands on a country road, as the spread of coronavirus disease (COVID-19) continues in Bad Zwesten near Kassel, Germany, April 21, 2020. REUTERS/Fabian Bimmer

An officer from the New York Police Department helps workers carry a body out of a house amid the coronavirus disease (COVID-19) outbreak, in the Brooklyn borough of New York City, U.S., April 20, 2020. REUTERS/Lucas Jackson

A soldier stands at a checkpoint during a police and army joint operation as part of security measures to keep people out of city downtown markets during a quarantine throughout the country to curb the spread of the coronavirus disease (COVID-19), in San Salvador, El Salvador April 20, 2020. REUTERS/Jose Cabezas

A police officer wearing a protective face mask sits next to barricades placed there to ensure people abide by restrictions during the national holiday of Sham el-Nessim marking the beginning of spring season, with almost empty streets to contain the spread of the coronavirus disease (COVID-19) in Cairo, Egypt April 20, 2020. REUTERS/Amr Abdallah Dalsh

A placard advertising protective masks is seen near a bus-stop, as the spread of the coronavirus disease (COVID-19) continues in Hanau, Germany, April 20, 2020. REUTERS/Ralph Orlowski

Health workers walk through a slum as they conduct an inspection, during a nationwide lockdown in India to slow the spread of COVID-19, in Dharavi, one of Asia's largest slums, during the coronavirus disease outbreak, in Mumbai, India, April 11, 2020. REUTERS/Francis Mascarenhas SEARCH "CORONAVIRUS MUMBAI SLUM" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.

A wheelchair-bound patient is helped by a nurse before undergoing dialysis treatment at a dialysis centre, amidst the coronavirus disease (COVID-19) outbreak, in Guayaquil, Ecuador April 18, 2020. Picture taken April 18, 2020. REUTERS/Santiago Arcos

A protective face mask lies on the street at Trastevere district as the spread of coronavirus disease (COVID-19) continues in Rome, Italy, April 19, 2020. REUTERS/Alberto Lingria

A protective face mask lies on the street at Trastevere district as the spread of coronavirus disease (COVID-19) continues in Rome, Italy, April 19, 2020. REUTERS/Alberto Lingria

A protective face mask lies on the street during the lockdown following the coronavirus disease (COVID-19) outbreak in Ronda, southern Spain, April 19, 2020. REUTERS/Jon Nazca

A believer wearing a protective face mask, used as a preventive measure against the coronavirus disease (COVID-19), prays near a cathedral of the Ukrainian Greek Catholic Church during the Orthodox Easter celebrations in Kiev, Ukraine April 19, 2020. REUTERS/Valentyn Ogirenko

A health official arrives to collect samples from villagers during the curfew amid concerns about the spread of coronavirus disease (COVID-19), in Colombo, Sri Lanka, April 18, 2020. REUTERS/Dinuka Liyanawatte

A worker fumigates an apartment amidst the outbreak of the coronavirus disease (COVID-19), in Guayaquil, Ecuador April 17, 2020. REUTERS/Vicente Gaibor del Pino

A worker fumigates an apartment amidst the outbreak of the coronavirus disease (COVID-19), in Guayaquil, Ecuador April 17, 2020. REUTERS/Vicente Gaibor del Pino

A worker sews washable versions of masks sized to fit everyone from children to bearded men who shun shaving due to their religion, during the coronavirus disease (COVID-19) outbreak, in Kibbutz Tzuba, Israel April 16, 2020. REUTERS/Dedi Hayun

A municipal worker cremates the body a man who died due to the coronavirus disease (COVID-19), at a crematorium in New Delhi, India, April 16, 2020. REUTERS/Danish Siddiqui

A person wearing a protective face mask by beach in Margate, as the spread of the coronavirus disease (COVID-19) continues, Margate, Britain, April 16, 2020. REUTERS/Dylan Martinez

People cross a near-empty street after the government announced a state of emergency for the capital and some prefectures following the coronavirus disease (COVID-19) outbreak, in Tokyo, Japan April 16, 2020. REUTERS/Kim Kyung-Hoon

A passenger receives a mask for mandatory use from next Friday onwards, inside any subway station, as a measure to contain the spread of the coronavirus disease (COVID-19), in Mexico City, Mexico April 15, 2020. REUTERS/ Edgard Garrido

A worker disinfects at Rato metro station as the spread of the coronavirus disease (COVID-19) continues, in Lisbon, Portugal April 15, 2020. REUTERS/Rafael Marchante

A member of medical staff is seen walking on Harley street as the spread of coronavirus disease (COVID-19) continues in London, Britain, April 15, 2020. REUTERS/John Sibley

A woman receives a self coronavirus test from a medical student on her doorsteps, amid the coronavirus disease (COVID-19) outbreak, in Sao Caetano do Sul, Sao Paulo State, Brazil, April 14, 2020. REUTERS/Rahel Patrasso

A medical specialist wearing protective gear walks out of a hospital for patients infected with the coronavirus disease (COVID-19) on the outskirts of Moscow, Russia April 14, 2020. REUTERS/Tatyana Makeyeva

A woman wears a protective mask as she shops flowers at the central flower market (Grossgruenmarkt) during the partial reopening of stores after the Austrian government loosens its lockdown restrictions during the global coronavirus disease (COVID-19) outbreak in Vienna, Austria, April 14, 2020. REUTERS/Lisi Niesner

A woman receives a nucleic acid test for COVID-19 on a street near a hospital after the lockdown was lifted in Wuhan, capital of Hubei province and China's epicentre of the novel coronavirus disease (COVID-19) outbreak, April 13, 2020. Picture taken April 13, 2020. REUTERS/Aly Song