NASA astronauts Douglas Hurley and Robert Behnken shake hands after placing decals on their crew car, before their NASA SpaceX Demo-2 mission to the International Space Station aboard a SpaceX Falcon 9 rocket and Crew Dragon spacecraft at NASA’s Kennedy Space Center in Cape Canaveral in Florida May 27, 2020. REUTERS/Joe Skipper

NASA astronauts Douglas Hurley and Robert Behnken shake hands after placing decals on their crew car, before their NASA SpaceX Demo-2 mission to the International Space Station aboard a SpaceX Falcon 9 rocket and Crew Dragon spacecraft at NASA’s Kennedy Space Center in Cape Canaveral in Florida May 27, 2020. REUTERS/Joe Skipper

A sign posted outside the office of Rep. Sam Graves (R-MO) asks visitors not to shake hands on Capitol Hill in Washington, U.S., May 14, 2020. REUTERS/Erin Scott

Flocke, a female polar bear, shakes off water at the Marineland animal park in Antibes, France, May 6, 2020. REUTERS/Eric Gaillard TPX IMAGES OF THE DAY

Doctor Bertholon shakes hand with a resident at "Les Figuiers" retirement home (Ehpad - Housing Establishment for Dependant Elderly People) amid the coronavirus disease (COVID-19) outbreak in Villeneuve-Loubet, France, April 23, 2020. REUTERS/Eric Gaillard

A dog shakes itself as its owner gives it a bath at an alley of the Rocinha slum during the coronavirus disease (COVID-19) outbreak, in Rio de Janeiro, Brazil April 22, 2020. REUTERS/Ricardo Moraes

A Shake Shack Inc. burger chain restaurant employee works during the outbreak of the coronavirus disease (COVID-19) in New York City, New York, U.S., April 20, 2020. REUTERS/Andrew Kelly

A woman walks past a Shake Shack Inc. burger chain restaurant, during the outbreak of the coronavirus disease (COVID-19) in New York City, New York, U.S., April 20, 2020. REUTERS/Andrew Kelly

An open sign is seen outside a Shake Shack Inc. burger chain restaurant, during the outbreak of the coronavirus disease (COVID-19) in New York City, New York, U.S., April 20, 2020. REUTERS/Andrew Kelly

An open sign is seen outside a Shake Shack Inc. burger chain restaurant, during the outbreak of the coronavirus disease (COVID-19) in New York City, New York, U.S., April 20, 2020. REUTERS/Andrew Kelly

A sign is seen outside a Shake Shack Inc. burger chain restaurant , during the outbreak of the coronavirus disease (COVID-19) in New York City, New York, U.S., April 20, 2020. REUTERS/Andrew Kelly

A bag from Shake Shack Inc burger chain is discarded in a trash can, during the outbreak of the coronavirus disease (COVID-19) in New York City, New York, U.S., April 20, 2020. REUTERS/Andrew Kelly

The sign for Shake Shack Inc, burger chain is seen, during the outbreak of the coronavirus disease (COVID-19) in New York City, New York, U.S., April 20, 2020. REUTERS/Andrew Kelly

The sign for Shake Shack Inc. burger chain is seen during the outbreak of the coronavirus disease (COVID-19) in New York City, New York, U.S., April 20, 2020. REUTERS/Andrew Kelly

Soccer Football - Liga Primera Nicaragua - Juventus FC v Real Madriz FC - Arnoldo Matty Chavez Stadium, Masaya, Nicaragua - April 11, 2020 Players bumps fists before the match as they avoid shaking hands despite most sport being cancelled around the world as the spread of coronavirus disease (COVID19) continues REUTERS/Oswaldo Rivas

Hwang Kyo-ahn, a candidate of the main opposition United Future Party, gives a fist bump instead of shaking hands to avoid the spread of the coronavirus disease (COVID-19) during a campaign rally in Seoul,?South Korea, April 10, 2020. REUTERS/Heo Ran

Hwang Kyo-ahn, a candidate of the main opposition United Future Party, gives a fist bump instead of shaking hands to avoid the spread of the coronavirus disease (COVID-19) during a campaign rally in Seoul, South Korea, April 10, 2020. REUTERS/Heo Ran

Ugi Lestari Widya Bahri, a 24-year-old bride, looks on as Mohamad Nurjaman, the 31-year-old groom, shakes hands with Muslim wedding officiant for 'Ijab Qabul' or wedding vow during the wedding ceremony amid the spread of coronavirus disease (COVID-19), in Tangerang, on the outskirts of Jakarta, Indonesia, April 10, 2020. REUTERS/Willy Kurniawan

A bear shakes off water as Giza Zoo keeper, Mohamed Rizq feeds it after the zoo was closed to visitors to help prevent the spread of coronavirus disease (COVID-19) on the outskirts of Cairo, Egypt April 2, 2020. Picture taken April 2, 2020. REUTERS/Amr Abdallah Dalsh

Abdourahmane, 29, from the Village Pilote association wears a protective face mask as he shakes hands with a child during a food distribution to street children amid an outbreak of the coronavirus disease (COVID-19), in Dakar, Senegal April 1, 2020. Picture taken April 1, 2020. REUTERS/Zohra Bensemra

Boys shake hands in a street after Azeri authorities tightened up measures to prevent the spread of coronavirus disease (COVID-19) in Baku, Azerbaijan April 1, 2020. REUTERS/Aziz Karimov

A display reading " Shaking hands? Better to give a smile" is pictured as the spread of the coronavirus disease (COVID-19) continues in Dresden, Germany, March 31, 2020. REUTERS/Matthias Rietschel

A display reading " Shaking hands? Better to give a smile" is pictured as the spread of the coronavirus disease (COVID-19) continues in Dresden, Germany, March 31, 2020. REUTERS/Matthias Rietschel

A display reading " Shaking hands? Better to give a smile" is pictured as the spread of the coronavirus disease (COVID-19) continues in Dresden, Germany, March 31, 2020. REUTERS/Matthias Rietschel

U.S. Lieutenant Colonel Jace Neuenschwander, a battalion commander in Task Force Nineveh, shakes hands with Iraqi General Mohammed Fadel, who wears a face mask and gloves, following the outbreak of coronavirus disease (COVID-19), during a handover ceremony of U.S.-led coalition forces to Iraqi Security Forces as part of a drawdown of coalition troops at the Nineveh presidential palace, in Nineveh, Iraq March 30, 2020. REUTERS/Abdullah Rashid REFLIE - CORRECTING TITLE

U.S. Brigadier General Vincent Barker shakes hands with Iraqi General Mohammed Fadel, as he wears face mask and gloves, following the outbreak of coronvavirus disease (COVID-19), during the hand over of Qayyarah Airfield West from US-led coalition forces to Iraqi Security Forces, in the south of Mosul, Iraq March 26, 2020. REUTERS/Thaier Al-Sudani

U.S. Brigadier General Vincent Barker shakes hands with Iraqi General Mohammed Fadel during the hand over of US-led coalition forces to Iraqi Security Forces at Qayyarah Airfield West in the south of Mosul, Iraq March 26, 2020. REUTERS/Thaier al-Sudani

German Economy Minister, Peter Altmaier, left, tries to shake hands with German Finance Minister Olaf Scholz, right, prior to a joint news conference to reveal details of a supplementary budget to counter the impact of the coronavirus disease (COVID-19) outbreak, in Berlin, Germany, March 23, 2020. Michael Sohn/Pool via REUTERS

Slovakia's President Zuzana Caputova and Prime Minister Igor Matovic wearing protective face masks shake hands as they attend the cabinet's inauguration at Presidential Palace in Bratislava, Slovakia March 21, 2020. Michal Svitok/Pool via REUTERS

Slovakia's President Zuzana Caputova and Prime Minister Igor Matovic wearing protective face masks shake hands after the cabinet's inauguration at Presidential Palace in Bratislava, Slovakia, March 21, 2020. REUTERS/Radovan Stoklasa

A delivery rider waits to pick up an order in an empty Shake Shack restaurant in the Soho neighborhood of Manhattan during the coronavirus outbreak in New York City, New York, U.S., March 18, 2020. REUTERS/Mike Segar

A reminder to avoid shaking hands is seen at a restaurant during the spread of the coronavirus disease (COVID-19) in Munich, Germany, March 18, 2020. REUTERS/Andreas Gebert

A reminder to avoid shaking hands is seen at a restaurant during the spread of the coronavirus disease (COVID-19) in Munich, Germany, March 18, 2020. REUTERS/Andreas Gebert

Norwegian musher Thomas Waerner shakes Checker Urtha Lenharr?s hand as he is officially checked in after winning the Iditarod Trail Sled Dog Race in Nome, Alaska March 18, 2020. REUTERS/Diana Haecker/Nome Nugget

Men shake hands at Spanish Springs Town Square, amid the fears of coronavirus disease (COVID-19) in The Villages, Florida, U.S. March 16, 2020. REUTERS/Yana Paskova TPX IMAGES OF THE DAY

Soccer Football - Superliga Cup - Huracan v Talleres - Tomas Adolfo Duco Stadium, Buenos Aires, Argentina - March 15, 2020 Players bumping their elbows instead of shaking hands before the match played behind closed doors as the number of coronavirus cases grows worldwide REUTERS/Agustin Marcarian

Soccer Football - Super Lig - Galatasaray v Besiktas - Turk Telekom Stadium, Istanbul, Turkey - March 15, 2020 Players bump fists instead of shaking hands before the match as the match will be played behind closed doors as the number of coronavirus cases grow around the world REUTERS/Umit Bektas

A player and referee avoid hand shakes as they play park football at Hackney Marshes in London, Britain, March 15, 2020. REUTERS/Eddie Keogh

Players avoid hand shakes as they play park football at Hackney Marshes in London, Britain, March 15, 2020. REUTERS/Eddie Keogh

Players avoid hand shakes as they play park football at Hackney Marshes in London, Britain, March 15, 2020. REUTERS/Eddie Keogh

Liverpool Half Marathon & 10 Mile - Liverpool, Britain - March 15, 2020 Runners shake hands after the race as the marathon goes ahead despite the number of coronavirus cases growing around the world Action Images via Reuters/Jason Cairnduff

Badminton - All England Open Badminton Championships - Arena Birmingham, Birmingham, Britain - March 14, 2020 China’s Chen Yufei and Japan’s Nozomi Okuhara shake hands after their semi final match Action Images via Reuters/Andrew Boyers

Badminton - All England Open Badminton Championships - Arena Birmingham, Birmingham, Britain - March 14, 2020 Taiwan’s Lee Yang and Wang Chi-lin shake hands with Indonesia’s Marcus Fernaldi Gideon and Kevin Sanjaya Sukamuljo after their men's doubles semi final match Action Images via Reuters/Andrew Boyers

Brian Cornell, the Chairman and CEO of Target Corporation, reaches out and shakes hands with U.S. President Donald Trump after the president declared the coronavirus pandemic a national emergency during a news conference in the Rose Garden of the White House in Washington, U.S., March 13, 2020. REUTERS/Jonathan Ernst

Outgoing Greek President Prokopis Pavlopoulos shakes hands with newly sworn-in President Katerina Sakellaropoulou during a handover ceremony at the Presidential Palace, in Athens, Greece, March 13, 2020. REUTERS/Alkis Konstantinidis/Pool

Men shake hands outside the Palacio de Bellas Artes in Mexico City, Mexico March 12, 2020. REUTERS/Gustavo Graf

Soccer Football - Europa League - Round of 16 First Leg - Rangers v Bayer Leverkusen - Ibrox, Glasgow, Scotland, Britain - March 12, 2020 Rangers manager Steven Gerrard shakes hands with James Tavernier after he was substituted Action Images via Reuters/Lee Smith

U.S. President Donald Trump shakes hands with Brazilian President Jair Bolsonaro before attending a working dinner at the Mar-a-Lago resort in Palm Beach, Florida, U.S., March 7, 2020. Picture taken March 7, 2020. REUTERS/Tom Brenner

U.S. President Donald Trump shakes hands with Brazilian President Jair Bolsonaro before attending a working dinner at the Mar-a-Lago resort in Palm Beach, Florida, U.S., March 7, 2020. Picture taken March 7, 2020. REUTERS/Tom Brenner

A Venezuelan indigenous women from the Wayuu tribe shake hands during a reconciliation ceremony, in Castilletes, Colombia February 19, 2020. Picture taken February 19, 2020. REUTERS/Luisa Gonzalez

Mar 11, 2020; Philadelphia, Pennsylvania, USA; Philadelphia 76ers guard Shake Milton (18) brings the ball up court against the Detroit Pistons during the fourth quarter at Wells Fargo Center. Mandatory Credit: Eric Hartline-USA TODAY Sports

Soccer Football - Copa Libertadores - Group D - Sao Paulo v Liga de Quito - Morumbi Stadium, Sao Paulo, Brazil - March 11, 2020 Liga de Quito's Rodrigo Aguirre shakes hands with Sao Paulo's Dani Alves after the match REUTERS/Amanda Perobelli

Soccer Football - Copa Libertadores - Group D - Sao Paulo v Liga de Quito - Morumbi Stadium, Sao Paulo, Brazil - March 11, 2020 Sao Paulo's Dani Alves shakes hands with Reinaldo after the match REUTERS/Amanda Perobelli

Mar 11, 2020; Philadelphia, Pennsylvania, USA; Detroit Pistons guard Brandon Knight (20) drives to the basket against Philadelphia 76ers guard Shake Milton (18) during the second quarter at Wells Fargo Center. Mandatory Credit: Eric Hartline-USA TODAY Sports

Mar 11, 2020; Philadelphia, Pennsylvania, USA; Detroit Pistons guard Khyri Thomas (13) drives to the basket against Philadelphia 76ers guard Shake Milton (18) during the second quarter at Wells Fargo Center. Mandatory Credit: Eric Hartline-USA TODAY Sports

Soccer Football - Bundesliga - Borussia Moenchengladbach v FC Cologne - Borussia-Park, Moenchengladbach, Germany - March 11, 2020 Borussia Moenchengladbach coach Marco Rose shakes hands with FC Cologne's Timo Horn after the match REUTERS/Wolfgang Rattay DFL regulations prohibit any use of photographs as image sequences and/or quasi-video

A woman smeared with coloured powder shakes her head to remove it during Holi celebrations in Mumbai, India March 10, 2020. REUTERS/Francis Mascarenhas TPX IMAGES OF THE DAY

A woman smeared with coloured powder shakes her head to remove it during Holi celebrations in Mumbai, India March 10, 2020. REUTERS/Francis Mascarenhas

Soccer Football - Premier League - Leicester City v Aston Villa - King Power Stadium, Leicester, Britain - March 9, 2020 Leicester City's James Justin shakes hands with Aston Villa's Matt Targett after the match Action Images via Reuters/Andrew Boyers EDITORIAL USE ONLY. No use with unauthorized audio, video, data, fixture lists, club/league logos or "live" services. Online in-match use limited to 75 images, no video emulation. No use in betting, games or single club/league/player publications. Please contact your account representative for further details.

Brazilian President Jair Bolsonaro shakes hand with U.S. Senator Rick Scott (R-FL) after speaking during the Brazil-USA Business Relations Seminar, in Miami, Florida, U.S., March 9, 2020. REUTERS/Marco Bello