Classical musician Mike Heitmann, who has been affected by the cancelation of events and closure of venues during the coronavirus disease (COVID-19) outbreak, poses for a portrait in Seattle, Washington, U.S. April 1, 2020. REUTERS/David Ryder

Classical musician Mike Heitmann, who has been affected by the cancelation of events and closure of venues during the coronavirus disease (COVID-19) outbreak, poses for a portrait in Seattle, Washington, U.S. April 1, 2020. REUTERS/David Ryder

Classical musician Mike Heitmann, who has been affected by the cancelation of events and closure of venues during the coronavirus disease (COVID-19) outbreak, poses for a portrait in Seattle, Washington, U.S. April 1, 2020. REUTERS/David Ryder

An interior view of Washington State Convention Center, the venue of what would have been day three of the 2020 Emerald City Comic Con, an event organizers said drew 98,000 fans over four days last year, and will be postponed to August due to the coronavirus (COVID-19) outbreak, in Seattle, Washington, U.S. March 14, 2020. REUTERS/Jason Redmond

A general view shows the venue for the sports climbing during a test event at Aomi Urban Sports Park in Tokyo, Japan, March 6, 2020. REUTERS/Stoyan Nenov

The venue for a campaign event for Democratic presidential candidate Senator Amy Klobuchar is empty after Klobuchar dropped out of the race and canceled the event in Denver, Colorado U.S., March 2, 2020. REUTERS/Rick Wilking

People celebrate the new year during an event at Shougang Industrial Park, one of the venues for the Beijing 2022 Olympics, in Beijing, China January 1, 2020. REUTERS/Jason Lee

People celebrate the new year during a countdown event at Shougang Industrial Park, one of the venues for the Beijing 2022 Olympics, in Beijing, China January 1, 2020. REUTERS/Jason Lee

People celebrate the new year during an event at Shougang Industrial Park, one of the venues for the Beijing 2022 Olympics, in Beijing, China January 1, 2020. REUTERS/Jason Lee

People celebrate the new year during an event at Shougang Industrial Park, one of the venues for the Beijing 2022 Olympics, in Beijing, China January 1, 2020. REUTERS/Jason Lee

People celebrate the new year during an event at Shougang Industrial Park, one of the venues for the Beijing 2022 Olympics, in Beijing, China January 1, 2020. REUTERS/Jason Lee

A man takes part in the event of New Year's Eve countdown celebration at Shougang Industrial Park, one of the venues for the Beijing 2022 Olympics, in Beijing, China December 31, 2019. REUTERS/Jason Lee

A man takes part in the event of New Year's Eve countdown celebration at Shougang Industrial Park, one of the venues for the Beijing 2022 Olympics, in Beijing, China December 31, 2019. REUTERS/Jason Lee

Supporters gather inside the venue of Britain's opposition Labour Party leader Jeremy Corbyn's final general election campaign event in London, Britain, December 11, 2019. REUTERS/Henry Nicholls

Supporters gather inside the venue of Britain's opposition Labour Party leader Jeremy Corbyn's final general election campaign event in London, Britain, December 11, 2019. REUTERS/Henry Nicholls

Supporters gather inside the venue of Britain's opposition Labour Party leader Jeremy Corbyn's final general election campaign event in London, Britain, December 11, 2019. REUTERS/Henry Nicholls

Supporters gather inside the venue of Britain's opposition Labour Party leader Jeremy Corbyn's final general election campaign event in London, Britain, December 11, 2019. REUTERS/Henry Nicholls

Supporters gather inside the venue of Britain's opposition Labour Party leader Jeremy Corbyn's final general election campaign event in London, Britain, December 11, 2019. REUTERS/Henry Nicholls

Supporters gather inside the venue of Britain's opposition Labour Party leader Jeremy Corbyn's final general election campaign event in London, Britain, December 11, 2019. REUTERS/Henry Nicholls

Protesters hold up placards outside the venue of Britain's opposition Labour Party leader Jeremy Corbyn's final general election campaign event in London, Britain, December 11, 2019. REUTERS/Henry Nicholls

A protester holds up a placard outside the venue of Britain's opposition Labour Party leader Jeremy Corbyn's final general election campaign event in London, Britain, December 11, 2019. REUTERS/Henry Nicholls

Anti-Brexit protesters stand outside the venue where Britain's Prime Minister Boris Johnson arrives for a campaign event, in London, Britain, December 11, 2019. REUTERS/Hannah McKay

An anti-Brexit protester wears a mask depicting Britain's Leader of the House of Commons Jacob Rees-Mogg outside the venue where Britain's Prime Minister Boris Johnson arrives for a campaign event, in London, Britain, December 11, 2019. REUTERS/Hannah McKay

Anti-Brexit protesters stand outside the venue where Britain's Prime Minister Boris Johnson arrives for a campaign event, in London, Britain, December 11, 2019. REUTERS/Hannah McKay

Anti-Brexit protesters gather outside the venue where Britain's Prime Minister Boris Johnson arrives for a campaign event, in London, Britain, December 11, 2019. REUTERS/Hannah McKay

Brexit Party campaign bus is seen as protesters demonstrate outside the venue where Brexit Party leader Nigel Farage holds his general election campaign event in Seaton Carew, Britain December 11, 2019. REUTERS/Scott Heppell

Climate change activist Greta Thunberg walks inside the venue for U.N. Climate Change Conference (COP25) after attending the Unite Behind the Science event, in Madrid, Spain, December 10, 2019. REUTERS/Sergio Perez

Climate change activist Greta Thunberg walks inside the venue for U.N. Climate Change Conference (COP25) summit after attending the Unite Behind the Science event, in Madrid, Spain, December 10, 2019. REUTERS/Sergio Perez

Britain's Prime Minister Boris Johnson speaks to the media at the soccer match venue, during his campaign event in Cheadle Hulme, Britain December 7, 2019. REUTERS/Toby Melville/Pool

Britain's Prime Minister Boris Johnson speaks to the media at the soccer match venue, during his campaign event in Cheadle Hulme, Britain December 7, 2019. REUTERS/Toby Melville/Pool

A woman lights a candle at a make shift memorial at a fundraising event organised by Britain's Vietnamese community to raise money for the families of the 39 people found inside a container, at a conference venue near Wolverhampton, Britain November 24 2019. REUTERS/Phil Noble

A woman lights a candle at a make shift memorial at a fundraising event organised by Britain's Vietnamese community to raise money for the families of the 39 people found inside a container, at a conference venue near Wolverhampton, Britain November 24 2019. REUTERS/Phil Noble

A man lights a candle at a make shift memorial at a fundraising event organised by Britain's Vietnamese community to raise money for the families of the 39 people found inside a container, at a conference venue near Wolverhampton, Britain November 24 2019. REUTERS/Phil Noble

Candles are seen at a make shift memorial at a fundraising event organised by Britain's Vietnamese community to raise money for the families of the 39 people found inside a container, at a conference venue near Wolverhampton, Britain November 24 2019. REUTERS/Phil Noble

Children are seen on the dance floor at a fundraising event organised by Britain's Vietnamese community to raise money for the families of the 39 people found inside a container, at a conference venue near Wolverhampton, Britain November 24 2019. REUTERS/Phil Noble

Vietnamese singer Gia Huy performs at a fundraising event organised by Britain's Vietnamese community to raise money for the families of the 39 people found inside a container, at a conference venue near Wolverhampton, Britain November 24 2019. REUTERS/Phil Noble

Vietnamese singer Gia Huy performs at a fundraising event organised by Britain's Vietnamese community to raise money for the families of the 39 people found inside a container, at a conference venue near Wolverhampton, Britain November 24 2019. REUTERS/Phil Noble

A man lights a candle at a make shift memorial at a fundraising event organised by Britain's Vietnamese community to raise money for the families of the 39 people found inside a container, at a conference venue near Wolverhampton, Britain November 24 2019. REUTERS/Phil Noble

Candles are seen at a make shift memorial at a fundraising event organised by Britain's Vietnamese community to raise money for the families of the 39 people found inside a container, at a conference venue near Wolverhampton, Britain November 24 2019. REUTERS/Phil Noble

An interior view of Tokyo Aquatics Centre the venue for Tokyo 2020 Olympic and Paralympic Games swimming and diving events, in Tokyo, Japan, November 21, 2019. REUTERS/Jack Tarrant

An interior view of Tokyo Aquatics Centre, the venue for Tokyo 2020 Olympic and Paralympic Games swimming and diving events, in Tokyo, Japan, November 21, 2019. REUTERS/Jack Tarrant

An exterior view of Ariake Arena, the venue for Tokyo 2020 Olympic and Paralympic Games volleyball and wheelchair basketball events, in Tokyo, Japan, November 21, 2019. REUTERS/Jack Tarrant

An exterior view of Tokyo Aquatics Centre, the venue for Tokyo 2020 Olympic and Paralympic Games swimming and diving events, in Tokyo, Japan, November 21, 2019. REUTERS/Jack Tarrant

An interior view of Ariake Arena, the venue for Tokyo 2020 Olympic and Paralympic Games volleyball and wheelchair basketball events, in Tokyo, Japan, November 21, 2019. REUTERS/Jack Tarrant

Protestors are escorted out of the venue before an event launching the Conservative Party's general election campaign in Birmingham, Britain, November 6, 2019. REUTERS/Phil Noble

A protestor is escorted out of the venue before an event launching the Conservative Party's general election campaign in Birmingham, Britain, November 6, 2019. REUTERS/Phil Noble

Protestors are escorted out of the venue before an event launching the Conservative Party's general election campaign in Birmingham, Britain, November 6, 2019. REUTERS/Phil Noble

Anti-Brexit campaigners demonstrate outside the venue of an event, where Brexit Party is introducing 600 parliamentary candidates running in the general election, in London, Britain November 4, 2019. REUTERS/Yara Nardi

Security personnel stand in front of a billboard with an image of Los Angeles Lakers basketball players outside the venue that was scheduled to hold fan events ahead of an NBA China game between Brooklyn Nets and Los Angeles Lakers, at the Oriental Sports Center in Shanghai, China October 9, 2019. REUTERS/Aly Song

People walk down steps outside the venue that was scheduled to hold fan events ahead of an NBA China game between Brooklyn Nets and Los Angeles Lakers, at the Oriental Sports Center in Shanghai, China October 9, 2019. REUTERS/Aly Song

People are seen next to fences outside the venue that was scheduled to hold fan events ahead of an NBA China game between Brooklyn Nets and Los Angeles Lakers, at the Oriental Sports Center in Shanghai, China October 9, 2019. REUTERS/Aly Song

Security personnel walk past the venue that was scheduled to hold fan events ahead of an NBA China game between Brooklyn Nets and Los Angeles Lakers, at the Oriental Sports Center in Shanghai, China October 9, 2019. REUTERS/Aly Song

A woman walks past an entrance of the venue that was scheduled to hold fan events ahead of an NBA China game between Brooklyn Nets and Los Angeles Lakers, at the Oriental Sports Center in Shanghai, China October 9, 2019. REUTERS/Aly Song

Security personnel are seen at the venue that was scheduled to hold fan events ahead of an NBA China game between Brooklyn Nets and Los Angeles Lakers, at the Oriental Sports Center in Shanghai, China October 9, 2019. REUTERS/Aly Song

Staff members sit on steps in front of the venue that was scheduled to hold fan events ahead of an NBA China game between Brooklyn Nets and Los Angeles Lakers, at the Oriental Sports Center in Shanghai, China October 9, 2019. REUTERS/Aly Song

A security personnel walks inside the venue that was scheduled to hold fan events ahead of an NBA China game between Brooklyn Nets and Los Angeles Lakers, at the Oriental Sports Center in Shanghai, China October 9, 2019. REUTERS/Aly Song

Security personnel walk past the venue that was scheduled to hold fan events ahead of an NBA China game between Brooklyn Nets and Los Angeles Lakers, at the Oriental Sports Center in Shanghai, China October 9, 2019. REUTERS/Aly Song

A man walks past the venue that was scheduled to hold a fan event ahead of an NBA China game between Brooklyn Nets and Los Angeles Lakers, at the Oriental Sports Center in Shanghai, China October 9, 2019. REUTERS/Aly Song

People are seen near the venue that was scheduled to hold a fan event ahead of an NBA China game between Brooklyn Nets and Los Angeles Lakers, at the Oriental Sports Center in Shanghai, China October 9, 2019. REUTERS/Aly Song