European Union Health Commissioner Stella Kyriakides holds a press conference on COVID-19 therapeutics strategy at the European Commission in Brussels, Belgium May 6, 2021. Kenzo Tribouillard/Pool via REUTERS

European Union Health Commissioner Stella Kyriakides holds a press conference on COVID-19 therapeutics strategy at the European Commission in Brussels, Belgium May 6, 2021. Kenzo Tribouillard/Pool via REUTERS

European Union Health Commissioner Stella Kyriakides holds a press conference on COVID-19 therapeutics strategy at the European Commission in Brussels, Belgium May 6, 2021. Kenzo Tribouillard/Pool via REUTERS

European Union Health Commissioner Stella Kyriakides holds a press conference on COVID-19 therapeutics strategy at the European Commission in Brussels, Belgium May 6, 2021. Kenzo Tribouillard/Pool via REUTERS

European Union Health Commissioner Stella Kyriakides holds a press conference on COVID-19 therapeutics strategy at the European Commission in Brussels, Belgium May 6, 2021. Kenzo Tribouillard/Pool via REUTERS

European Union Health Commissioner Stella Kyriakides holds a press conference on COVID-19 therapeutics strategy at the European Commission in Brussels, Belgium May 6, 2021. Kenzo Tribouillard/Pool via REUTERS

European Union Health Commissioner Stella Kyriakides holds a press conference on COVID-19 therapeutics strategy at the European Commission in Brussels, Belgium May 6, 2021. Kenzo Tribouillard/Pool via REUTERS

Mohamed Mouloudi, an Algerian publisher and expert on Islamism in the country, attends an interview with Reuters at his office in Rouiba, east of the capital Algiers, Algeria April 14, 2021. Picture taken April 14, 2021. REUTERS/Abdelaziz Boumzar

Mohamed Mouloudi, an Algerian publisher and expert on Islamism in the country, attends an interview with Reuters at his office in Rouiba, east of the capital Algiers, Algeria April 14, 2021. Picture taken April 14, 2021. REUTERS/Abdelaziz Boumzar

A migrant fills out a form during a gathering to request Chile's government regularize their immigration status before a new rule facilitating expulsion from the country, according to local media, is published, amid the coronavirus disease (COVID-19) pandemic, in Santiago, Chile April 12, 2021. REUTERS/Ivan Alvarado

A police officer requests migrants to keep social distance during a gathering to request Chile's government regularize their immigration status before a new rule facilitating expulsion from the country, according to local media, is published, amid the coronavirus disease (COVID-19) pandemic, in Santiago, Chile April 12, 2021. REUTERS/Ivan Alvarado

Migrants hold forms to request Chile's government regularize their immigration status before a new rule facilitating expulsion from the country, according to local media, is published, during the coronavirus disease (COVID-19) pandemic, in Santiago, Chile April 12, 2021. REUTERS/Ivan Alvarado

Migrants gather to request Chile's government regularize their immigration status before a new rule facilitating expulsion from the country, according to local media, is published, during the coronavirus disease (COVID-19) pandemic, in Santiago, Chile April 12, 2021. REUTERS/Ivan Alvarado

A migrant fills out a form to request Chile's government regularize immigration status before a new rule facilitating expulsion from the country, according to local media, is published, during the coronavirus disease (COVID-19) pandemic, in Santiago, Chile April 12, 2021. REUTERS/Ivan Alvarado

A lawyer shows a form to teach migrants to fill out it while gathering to request Chile's government regularize their immigration status before a new rule facilitating expulsion from the country, according local media, is published, during the coronavirus disease (COVID-19) pandemic, in Santiago, Chile, April 12, 2021. REUTERS/Ivan Alvarado

A migrant fills out a form during a gathering to request Chile's government regularize immigration status before a new rule facilitating expulsion from the country, according to local media, is published, during the coronavirus disease (COVID-19) pandemic, in Santiago, Chile April 12, 2021. REUTERS/Ivan Alvarado

Migrants fill out a form to request Chile's government regularize their immigration status before a new rule facilitating expulsion from the country, according to local media, is published, during the coronavirus disease (COVID-19) pandemic, in Santiago, Chile April 12, 2021. REUTERS/Ivan Alvarado

Migrants gather to request Chile's government regularize their immigration status before a new rule facilitating expulsion from the country, according to local media, is published, during the coronavirus disease (COVID-19) pandemic, in Santiago, Chile April 12, 2021. REUTERS/Ivan Alvarado

A migrant woman and a child kiss during a gathering to request Chile's government regularize their immigration status before a new rule facilitating expulsion from the country, according to local media, is published, during the coronavirus disease (COVID-19) pandemic, in Santiago, Chile April 12, 2021. REUTERS/Ivan Alvarado

Dimitris Karras, 36, displays the children?s book he wrote and self-published promoting firearm ownership, "The Three Little Pigs and the Wolf on the Road", at Firearms Unknown, a gun store in Oceanside, California, U.S., April 12, 2021. REUTERS/Bing Guan

BioNTech founders Ugur Sahin and Oezlem Tuereci are flanked by CEO Mathias Doepfner and publisher Friede Springer at the Axel Springer Award ceremony in Berlin, Germany, March 18, 2021. Bernd von Jutrczenka/Pool via REUTERS

BioNTech founders Ugur Sahin and Oezlem Tuereci are flanked by Austrian Chancellor Sebastian Kurz , CEO Mathias Doepfner and publisher Friede Springer during the Axel Springer Award ceremony in Berlin, Germany, March 18, 2021. Bernd von Jutrczenka/Pool via REUTERS

BioNTech founders Ugur Sahin and Oezlem Tuereci are flanked by CEO Mathias Doepfner and publisher Friede Springer during the Axel Springer Award ceremony in Berlin, Germany, March 18, 2021. Bernd von Jutrczenka/Pool via REUTERS

BioNTech founders Ugur Sahin and Oezlem Tuereci are flanked by Springer CEO Mathias Doepfner (R) and publisher Friede Springer (L) during the Axel Springer Award ceremony in Berlin, Germany, March 18, 2021. Bernd von Jutrczenka/Pool via REUTERS

Isabelle de Silva, Head of France's competition authority, attends a news conference after French antitrust authority published a decision on iPhone maker Apple, in Paris, France, March 17, 2021. REUTERS/Gonzalo Fuentes

Isabelle de Silva, Head of France's competition authority, talks during a news conference after French antitrust authority published a decision on iPhone maker Apple, in Paris, France, March 17, 2021. REUTERS/Gonzalo Fuentes

Isabelle de Silva, Head of France's competition authority, talks during a news conference after French antitrust authority published a decision on iPhone maker Apple, in Paris, France, March 17, 2021. REUTERS/Gonzalo Fuentes

Isabelle de Silva, Head of France's competition authority, talks during a news conference after French antitrust authority published a decision on iPhone maker Apple, in Paris, France, March 17, 2021. REUTERS/Gonzalo Fuentes

Alisha Zucker, who was laid off in September from her job in educational publishing, uses her phone in Central Park in New York City, U.S., March 1, 2021. Picture taken March 1, 2021. REUTERS/Brendan McDermid REFILE - CORRECTING INFORMATION

Alisha Zucker, who was laid off in September from her job in educational publishing, poses for a portrait in Central Park in New York City, U.S., March 1, 2021. Picture taken March 1, 2021. REUTERS/Brendan McDermid REFILE - CORRECTING INFORMATION

Alisha Zucker, who was laid off in September from her job in educational publishing, poses for a portrait in Central Park in New York City, U.S., March 1, 2021. Picture taken March 1, 2021. REUTERS/Brendan McDermid REFILE - CORRECTING INFORMATION

Alisha Zucker, who was laid off in September from her job in educational publishing, poses for a portrait in Central Park in New York City, U.S., March 1, 2021. Picture taken March 1, 2021. REUTERS/Brendan McDermid REFILE - CORRECTING INFORMATION

Alisha Zucker, who was laid off in September from her job in educational publishing, poses for a portrait in Central Park in New York City, U.S., March 1, 2021. Picture taken March 1, 2021. REUTERS/Brendan McDermid REFILE - CORRECTING INFORMATION

A copy of the children's book "If I Ran The Zoo" by author Dr. Seuss, which the publisher said will no longer be published, is seen in this photo illustration taken in Brooklyn, New York, U.S., March 2, 2021. REUTERS/Brendan McDermid/Illustration REFILE - UPDATING BYLINE

A copy of the children's book "If I Ran The Zoo" by author Dr. Seuss, which the publisher said will no longer be published, is seen in this photo illustration taken in Brooklyn, New York, U.S., March 2, 2021. REUTERS/Brendan McDermid/Illustration REFILE - UPDATING BYLINE

A copy of the children's book "If I Ran The Zoo" by author Dr. Seuss, which the publisher said will no longer be published, is seen in this photo illustration taken in Brooklyn, New York, U.S., March 2, 2021. REUTERS/Brendan McDermid/Illustration REFILE - UPDATING BYLINE

A statue of a character from a book by Theodor Seuss Geisel (Dr. Seuss) stands in the Dr. Seuss National Memorial Sculpture Garden, after the company set up to preserve the deceased author's legacy announced that six of his children's books will no longer be published because they contain racist and insensitive imagery, in his birthplace of Springfield, Massachusetts, U.S., March 2, 2021. REUTERS/Brian Snyder

A statue of author Theodor Seuss Geisel (Dr. Seuss) stands in the Dr. Seuss National Memorial Sculpture Garden, after the company set up to preserve the deceased author's legacy announced that six of his children's books will no longer be published because they contain racist and insensitive imagery, in his birthplace of Springfield, Massachusetts, U.S., March 2, 2021. REUTERS/Brian Snyder

A statue of a character from a book by Theodor Seuss Geisel (Dr. Seuss) stands in the Dr. Seuss National Memorial Sculpture Garden, after the company set up to preserve the deceased author's legacy announced that six of his children's books will no longer be published because they contain racist and insensitive imagery, in his birthplace of Springfield, Massachusetts, U.S., March 2, 2021. REUTERS/Brian Snyder

A statue of "The Lorax" from a book by Theodor Seuss Geisel (Dr. Seuss) stands in the Dr. Seuss National Memorial Sculpture Garden, after the company set up to preserve the deceased author's legacy announced that six of his children's books will no longer be published because they contain racist and insensitive imagery, in his birthplace of Springfield, Massachusetts, U.S., March 2, 2021. The sign with the sculpture carries the quote "Unless someone like you cares a whole awful lot, nothing is going to get better. It’s not." REUTERS/Brian Snyder

A statue of a character from a book by Theodor Seuss Geisel (Dr. Seuss) stands in the Dr. Seuss National Memorial Sculpture Garden, after the company set up to preserve the deceased author's legacy announced that six of his children's books will no longer be published because they contain racist and insensitive imagery, in his birthplace of Springfield, Massachusetts, U.S., March 2, 2021. REUTERS/Brian Snyder

A statue of author Theodor Seuss Geisel (Dr. Seuss) stands in the Dr. Seuss National Memorial Sculpture Garden, after the company set up to preserve the deceased author's legacy announced that six of his children's books will no longer be published because they contain racist and insensitive imagery, in his birthplace of Springfield, Massachusetts, U.S., March 2, 2021. REUTERS/Brian Snyder

A statue of author Theodor Seuss Geisel (Dr. Seuss) stands in the Dr. Seuss National Memorial Sculpture Garden, after the company set up to preserve the deceased author's legacy announced that six of his children's books will no longer be published because they contain racist and insensitive imagery, in his birthplace of Springfield, Massachusetts, U.S., March 2, 2021. REUTERS/Brian Snyder

A closed sign is seen in a shop, as official figures are published for UK GDP in 2020, London, Britain, February 12, 2021. REUTERS/Toby Melville

A closed sign is seen on a shopfront in Oxford Street, as official figures are published for UK GDP in 2020, London, Britain, February 12, 2021. REUTERS/Toby Melville

A closed sign is seen in a shop, as official figures are published for UK GDP in 2020, London, Britain, February 12, 2021. REUTERS/Toby Melville

People walked past a closed shopfront on Oxford Street, as official figures are published for UK GDP in 2020, London, Britain, February 12, 2021. REUTERS/Toby Melville

A person walks past a closed shopfront on Oxford Street, as official figures are published for UK GDP in 2020, London, Britain, February 12, 2021. REUTERS/Toby Melville

An almost empty Oxford Street is seen, as official figures are published for UK GDP in 2020, London, Britain, February 12, 2021. REUTERS/Toby Melville

A person walks past a closed shopfront on Oxford Street, as official figures are published for UK GDP in 2020, London, Britain, February 12, 2021. REUTERS/Toby Melville

A person crosses an almost empty New Bond Street, as official figures are published for UK GDP in 2020, London, Britain, February 12, 2021. REUTERS/Toby Melville

A person crosses an almost empty Oxford Street, as official figures are published for UK GDP in 2020, London, Britain, February 12, 2021. REUTERS/Toby Melville

A person crosses an almost empty New Bond Street, as official figures are published for UK GDP in 2020, London, Britain, February 12, 2021. REUTERS/Toby Melville

Activists hold up pieces of paper with the words in Arabic, "zero fear" during the memorial service to pay tribute to Lokman Slim, a Shi'ite publisher and activist, who was found dead in his car, in Beirut, Lebanon February 11, 2021. REUTERS/Mohamed Azakir

Activists hold up pieces of paper with the words in Arabic, "zero fear" during the memorial service to pay tribute to Lokman Slim, a Shi'ite publisher and activist, who was found dead in his car, in Beirut, Lebanon February 11, 2021. REUTERS/Mohamed Azakir

Activists hold up pieces of paper with the words in Arabic, "zero fear" during the memorial service to pay tribute to Lokman Slim, a Shi'ite publisher and activist, who was found dead in his car, in Beirut, Lebanon February 11, 2021. REUTERS/Mohamed Azakir

U.S. Ambassador to Lebanon Dorothy Shea is pictured during a memorial service to pay tribute for lokman Slim, a Shi'ite publisher and activist who was found dead in his car, in Beirut, Lebanon February 11, 2021. REUTERS/Mohamed Azakir

A picture of Lokman Slim, a Shi'ite publisher and activist, is seen during a memorial service to pay tribute to him, one week after he was found dead in his car, in Beirut, Lebanon February 11, 2021. REUTERS/Mohamed Azakir

Pictures of Lokman Slim, a Shi'ite publisher and activist, are seen during a memorial service to pay tribute to him, one week after he was found dead in his car, in Beirut, Lebanon February 11, 2021. REUTERS/Mohamed Azakir

U.S. Ambassador to Lebanon Dorothy Shea speaks during a memorial service to pay tribute for lokman Slim, a Shi'ite publisher and activist who was found dead in his car, in Beirut, Lebanon February 11, 2021. REUTERS/Mohamed Azakir