People queue to be tested at a newly opened testing site at the "Revolte Bar", after the bar was closed due to coronavirus disease (COVID-19) restrictions, in Berlin, Germany, April 15, 2021. REUTERS/Christian Mang

People queue to be tested at a newly opened testing site at the "Revolte Bar", after the bar was closed due to coronavirus disease (COVID-19) restrictions, in Berlin, Germany, April 15, 2021. REUTERS/Christian Mang

Doctor Steffen Lueder takes a nasal swab from a person for a rapid antigen test at a newly opened testing site at the "Revolte Bar", after the bar was closed due to coronavirus disease (COVID-19) restrictions, in Berlin, Germany, April 15, 2021. REUTERS/Christian Mang

The coronavirus disease (COVID-19) antigen quick tests show results at a newly opened testing site at the "Revolte Bar", after the bar was closed due to coronavirus disease (COVID-19) restrictions, in Berlin, Germany, April 15, 2021. REUTERS/Christian Mang

An employee performs a rapid antigen test at a newly opened testing site at the "Revolte Bar", after the bar was closed due to coronavirus disease (COVID-19) restrictions, in Berlin, Germany, April 15, 2021. REUTERS/Christian Mang

An employee performs a rapid antigen test at a newly opened testing site at the "Revolte Bar", after the bar was closed due to coronavirus disease (COVID-19) restrictions, in Berlin, Germany, April 15, 2021. REUTERS/Christian Mang

An employee performs a rapid antigen test at a newly opened testing site at the "Revolte Bar", after the bar was closed due to coronavirus disease (COVID-19) restrictions, in Berlin, Germany, April 15, 2021. REUTERS/Christian Mang

An employee performs a rapid antigen test at a newly opened testing site at the "Revolte Bar", after the bar was closed due to coronavirus disease (COVID-19) restrictions, in Berlin, Germany, April 15, 2021. REUTERS/Christian Mang

An employee performs a rapid antigen test at a newly opened testing site at the "Revolte Bar", after the bar was closed due to coronavirus disease (COVID-19) restrictions, in Berlin, Germany, April 15, 2021. REUTERS/Christian Mang

An employee performs a rapid antigen test at a newly opened testing site at the "Revolte Bar", after the bar was closed due to coronavirus disease (COVID-19) restrictions, in Berlin, Germany, April 15, 2021. REUTERS/Christian Mang

An employee performs a rapid antigen test at a newly opened testing site at the "Revolte Bar", after the bar was closed due to coronavirus disease (COVID-19) restrictions, in Berlin, Germany, April 15, 2021. REUTERS/Christian Mang

An employee performs a rapid antigen test at a newly opened testing site at the "Revolte Bar", after the bar was closed due to coronavirus disease (COVID-19) restrictions, in Berlin, Germany, April 15, 2021. REUTERS/Christian Mang

An employee performs a rapid antigen test at a newly opened testing site at the "Revolte Bar", after the bar was closed due to coronavirus disease (COVID-19) restrictions, in Berlin, Germany, April 15, 2021. REUTERS/Christian Mang

An employee performs a rapid antigen test at a newly opened testing site at the "Revolte Bar", after the bar was closed due to coronavirus disease (COVID-19) restrictions, in Berlin, Germany, April 15, 2021. REUTERS/Christian Mang

An employee performs a rapid antigen test at a newly opened testing site at the "Revolte Bar", after the bar was closed due to coronavirus disease (COVID-19) restrictions, in Berlin, Germany, April 15, 2021. REUTERS/Christian Mang

An employee performs a rapid antigen test at a newly opened testing site at the "Revolte Bar", after the bar was closed due to coronavirus disease (COVID-19) restrictions, in Berlin, Germany, April 15, 2021. REUTERS/Christian Mang

A person holds a placard reading ''general revolt against global security'' during demonstration against the "Global Security Bill'', that right groups say would make it a crime to circulate an image of a police officer's face and would infringe journalists' freedom in the country, in Paris, France, January 30, 2021. REUTERS/Benoit Tessier

Bartender Katja sits in the bar 'Revolte', which is closed due to coronavirus disease (COVID-19) restrictions in Berlin, Germany, December 8, 2020. Picture taken December 8, 2020. Katja: "Lockdown is unlived time and it is an obstacle for me.'' REUTERS/Hannibal Hanschke

Masked protestors attend a demonstration as French parliament begins to discuss a proposed law that would make it a crime in some circumstances to circulate an image of a police officer's face, in Nantes, France, November 17, 2020. The banner read "Against global security, general revolt". REUTERS/Stephane Mahe

Masked protestors attend a demonstration as French parliament begins to discuss a proposed law that would make it a crime in some circumstances to circulate an image of a police officer's face, in Nantes, France, November 17, 2020. The banner read "Against global security, general revolt". REUTERS/Stephane Mahe

People attend a demonstration as French parliament begins to discuss a proposed law that would make it a crime in some circumstances to circulate an image of a police officer's face, in Nantes, France, November 17, 2020. The banner read "Against global security, general revolt". REUTERS/Stephane Mahe

People attend a demonstration as French parliament begins to discuss a proposed law that would make it a crime in some circumstances to circulate an image of a police officer's face, in Nantes, France, November 17, 2020. The banner read "Against global security, general revolt". REUTERS/Stephane Mahe

Rights activists and journalists attend a demonstration as French parliament begins to discuss a proposed law that would make it a crime in some circumstances to circulate an image of a police officer's face, in front of the Prefecture in Nantes, France, November 17, 2020. The banners read "Against global security, general revolt. The street is ours". REUTERS/Stephane Mahe

Members of the Greek Communist Party (KKE) flee tear gas and a water cannon during clashes with riot police, as the Greek government banned the annual march to mark the anniversary of a 1973 student revolt against the then military junta due to the coronavirus disease (COVID-19) pandemic, in Athens, Greece, November 17, 2020. REUTERS/Alkis Konstantinidis

Members of the Greek Communist Party (KKE) flee tear gas and a water cannon during clashes with riot police, as the Greek government banned the annual march to mark the anniversary of a 1973 student revolt against the then military junta due to the coronavirus disease (COVID-19) pandemic, in Athens, Greece, November 17, 2020. REUTERS/Costas Baltas

Former Greek finance minister and leader of MeRA25 party Yanis Varoufakis takes part in a sitting protest in front of a police cordon, as the Greek government banned the annual march marking the anniversary of a 1973 student revolt against the then military junta due to the coronavirus disease (COVID-19) pandemic, in Athens, Greece, November 17, 2020. The placard reads "The fight for democracy is constant". REUTERS/Alkis Konstantinidis

Former Greek finance minister and leader of MeRA25 party Yanis Varoufakis takes part in a protest, as the Greek government banned the annual march marking the anniversary of a 1973 student revolt against the then military junta due to the coronavirus disease (COVID-19) pandemic, in Athens, Greece, November 17, 2020. The placard reads "The fight for democracy is constant". REUTERS/Alkis Konstantinidis

Protesters are detained by police following clashes, as the Greek government banned the annual march to mark the anniversary of a 1973 student revolt against the then military junta due to the coronavirus disease (COVID-19) pandemic, in Athens, Greece, November 17, 2020. REUTERS/Costas Baltas

Members of the Greek Communist Party (KKE) flee tear gas and a water cannon during clashes with riot police, as the Greek government banned the annual march to mark the anniversary of a 1973 student revolt against the then military junta due to the coronavirus disease (COVID-19) pandemic, in Athens, Greece, November 17, 2020. REUTERS/Costas Baltas

Members of the Greek Communist Party (KKE) flee tear gas and a water cannon during clashes with riot police, as the Greek government banned the annual march to mark the anniversary of a 1973 student revolt against the then military junta due to the coronavirus disease (COVID-19) pandemic, in Athens, Greece, November 17, 2020. REUTERS/Costas Baltas

Protesters flee tear gas and a water cannon during clashes with riot police, as the Greek government banned the annual march to mark the anniversary of a 1973 student revolt against the then military junta due to the coronavirus disease (COVID-19) pandemic, in Athens, Greece, November 17, 2020. REUTERS/Costas Baltas

Protesters react over an injured fellow protester during clashes, as the Greek government banned the annual march to mark the anniversary of a 1973 student revolt against the then military junta due to the coronavirus disease (COVID-19) pandemic, in Athens, Greece, November 17, 2020. REUTERS/Costas Baltas

Members of the Greek Communist Party (KKE) apply social distancing during a rally marking the anniversary of a 1973 student revolt against the then military junta, as the Greek government banned the annual march due to the coronavirus disease (COVID-19) pandemic, in Athens, Greece, November 17, 2020. REUTERS/Costas Baltas

A detained protester shouts slogans from the window of a police bus following clashes, as the Greek government banned the annual march to mark the anniversary of a 1973 student revolt against the then military junta due to the coronavirus disease (COVID-19) pandemic, in Athens, Greece, November 17, 2020. REUTERS/Costas Baltas

People wearing protective face masks hold a banner which reads "Capitalism is the virus, the revolt is its vaccine" as they attend a demonstration against the construction of an Amazon logistic center in Montbert near Nantes, France, November 17, 2020. REUTERS/Stephane Mahe

An injured member of the Greek Communist Party (KKE) is detained during clashes, as the Greek government banned the annual march to mark the anniversary of a 1973 student revolt against the then military junta due to the coronavirus disease (COVID-19) pandemic, in Athens, Greece, November 17, 2020. REUTERS/Alkis Konstantinidis

A police officer wearing a protective face mask walks past the closed entrance of the Athens' Polytechnic School, as the Greek government banned the annual march marking the anniversary of a 1973 student revolt against the then military junta due to the coronavirus disease (COVID-19) pandemic, in Athens, Greece, November 17, 2020. REUTERS/Alkis Konstantinidis

A wreath is placed on the closed entrance of the Athens' Polytechnic School, as the Greek government banned the annual march marking the anniversary of a 1973 student revolt against the then military junta due to the coronavirus disease (COVID-19) pandemic, in Athens, Greece, November 17, 2020. REUTERS/Alkis Konstantinidis

Members of the Greek Communist Party (KKE) apply social distancing during a rally marking the anniversary of a 1973 student revolt against the then military junta, as the Greek government banned the annual march due to the coronavirus disease (COVID-19) pandemic, in Athens, Greece, November 17, 2020. REUTERS/Alkis Konstantinidis

Members of the Greek Communist Party (KKE) apply social distancing during a rally marking the anniversary of a 1973 student revolt against the then military junta, as the Greek government banned the annual march due to the coronavirus disease (COVID-19) pandemic, in Athens, Greece, November 17, 2020. REUTERS/Alkis Konstantinidis

Protesters apply social distancing during a rally marking the anniversary of a 1973 student revolt against the then military junta, as the Greek government banned the annual march due to the coronavirus disease (COVID-19) pandemic, in Athens, Greece, November 17, 2020. REUTERS/Alkis Konstantinidis

Police detain members of the Greek Communist Party (KKE) during clashes, as the Greek government banned the annual march to mark the anniversary of a 1973 student revolt against the then military junta due to the coronavirus disease (COVID-19) pandemic, in Athens, Greece, November 17, 2020. REUTERS/Alkis Konstantinidis

Members of the Greek Communist Party (KKE) flee tear gas and a water cannon during clashes with riot police, as the Greek government banned the annual march to mark the anniversary of a 1973 student revolt against the then military junta due to the coronavirus disease (COVID-19) pandemic, in Athens, Greece, November 17, 2020. REUTERS/Alkis Konstantinidis

Members of the Greek Communist Party (KKE) flee tear gas and a water cannon during clashes with riot police, as the Greek government banned the annual march to mark the anniversary of a 1973 student revolt against the then military junta due to the coronavirus disease (COVID-19) pandemic, in Athens, Greece, November 17, 2020. REUTERS/Alkis Konstantinidis TPX IMAGES OF THE DAY

Members of the Greek Communist Party (KKE) flee tear gas and a water cannon during clashes with riot police, as the Greek government banned the annual march to mark the anniversary of a 1973 student revolt against the then military junta due to the coronavirus disease (COVID-19) pandemic, in Athens, Greece, November 17, 2020. REUTERS/Alkis Konstantinidis

Members of the Greek Communist Party (KKE) flee tear gas and a water cannon during clashes with riot police, as the Greek government banned the annual march to mark the anniversary of a 1973 student revolt against the then military junta due to the coronavirus disease (COVID-19) pandemic, in Athens, Greece, November 17, 2020. REUTERS/Alkis Konstantinidis

Two members of the Greek Communist Party (KKE) react to tear gas and a water cannon during clashes with riot police, as the Greek government banned the annual march to mark the anniversary of a 1973 student revolt against the then military junta due to the coronavirus disease (COVID-19) pandemic, in Athens, Greece, November 17, 2020. REUTERS/Alkis Konstantinidis

Two members of the Greek Communist Party (KKE) react to tear gas and a water cannon during clashes with riot police, as the Greek government banned the annual march to mark the anniversary of a 1973 student revolt against the then military junta due to the coronavirus disease (COVID-19) pandemic, in Athens, Greece, November 17, 2020. REUTERS/Alkis Konstantinidis

Members of the Greek Communist Party (KKE) flee tear gas and a water cannon during clashes with riot police, as the Greek government banned the annual march to mark the anniversary of a 1973 student revolt against the then military junta due to the coronavirus disease (COVID-19) pandemic, in Athens, Greece, November 17, 2020. REUTERS/Alkis Konstantinidis

Riot police use a water cannon to disperse members of the Greek Communist Party (KKE) as the Greek government banned the annual march to mark the anniversary of a 1973 student revolt against the then military junta due to the coronavirus disease (COVID-19) pandemic, in Athens, Greece, November 17, 2020. REUTERS/Alkis Konstantinidis

Members of the Greek Communist Party (KKE) flee tear gas and a water cannon during clashes with riot police, as the Greek government banned the annual march to mark the anniversary of a 1973 student revolt against the then military junta due to the coronavirus disease (COVID-19) pandemic, in Athens, Greece, November 17, 2020. REUTERS/Alkis Konstantinidis

Members of the Greek Communist Party (KKE) flee tear gas and a water cannon during clashes with riot police, as the Greek government banned the annual march to mark the anniversary of a 1973 student revolt against the then military junta due to the coronavirus disease (COVID-19) pandemic, in Athens, Greece, November 17, 2020. REUTERS/Alkis Konstantinidis

A man with a hat that states "Make America Revolt Again" kneels down at a candlelight vigil for Elijah McClain during a protest against racial inequality in Aurora, Colorado, U.S., July 11, 2020. REUTERS/Kevin Mohatt

A protester dressed in a vintage uniform gestures during a demonstration to demand for change in the constitution on the 88th anniversary of a revolt that ended absolute monarchy in the country, in front of parliament building in Bangkok, Thailand, June 24, 2020. REUTERS/Jorge Silva

A protester dressed in a vintage uniform speaks next to the original plaque commemorating the end of the absolute monarchy during a demonstration to demand for change in the constitution on the 88th anniversary of a revolt that ended absolute monarchy in the country, in front of the parliament building in Bangkok, Thailand, June 24, 2020. REUTERS/Athit Perawongmetha

A protester dressed in a vintage uniform gestures during a demonstration to demand for change in the constitution on the 88th anniversary of a revolt that ended absolute monarchy in the country, in front of the parliament building in Bangkok, Thailand, June 24, 2020. REUTERS/Athit Perawongmetha

Protesters gather around the original plaque commemorating the end of the absolute monarchy during a demonstration to demand for change in the constitution on the 88th anniversary of a revolt that ended absolute monarchy in the country, in front of the parliament building in Bangkok, Thailand, June 24, 2020. REUTERS/Athit Perawongmetha

A pro-democracy activist holds the original plaque commemorating the end of the absolute monarchy during a demonstration to demand for change in the constitution on the 88th anniversary of a revolt that ended absolute monarchy in the country, in front of the parliament building in Bangkok, Thailand, June 24, 2020. REUTERS/Athit Perawongmetha

Police officers secure the area during a demonstration to demand for change in the constitution on the 88th anniversary of a revolt that ended absolute monarchy in the country, in front of the parliament building in Bangkok, Thailand, June 24, 2020. REUTERS/Athit Perawongmetha

A protester dressed in a vintage uniform takes part in a demonstration to demand for change in the constitution on the 88th anniversary of a revolt that ended absolute monarchy in the country, in front of parliament building in Bangkok, Thailand, June 24, 2020. REUTERS/Jorge Silva