Bavarian State Premier and Christian Social Union (CSU) leader Markus Soeder gives a statement in Munich, Germany, April 20, 2021. Peter Kneffel/Pool via REUTERS

Bavarian State Premier and Christian Social Union (CSU) leader Markus Soeder gives a statement in Munich, Germany, April 20, 2021. Peter Kneffel/Pool via REUTERS

Bavarian State Premier and Christian Social Union (CSU) leader Markus Soeder gives a statement in Munich, Germany, April 20, 2021. Peter Kneffel/Pool via REUTERS

Bavarian State Premier and Christian Social Union (CSU) leader Markus Soeder gives a statement in Munich, Germany, April 20, 2021. Peter Kneffel/Pool via REUTERS

Bavarian State Premier and Christian Social Union (CSU) leader Markus Soeder gives a statement in Munich, Germany, April 20, 2021. Peter Kneffel/Pool via REUTERS

Bavarian State Premier and Christian Social Union (CSU) leader Markus Soeder gives a statement in Munich, Germany, April 20, 2021. Peter Kneffel/Pool via REUTERS

Bavarian State Premier and Christian Social Union (CSU) leader Markus Soeder gives a statement in Munich, Germany, April 20, 2021. Peter Kneffel/Pool via REUTERS

Bavarian State Premier and Christian Social Union (CSU) leader Markus Soeder gives a statement in Munich, Germany, April 20, 2021. Peter Kneffel/Pool via REUTERS

Bavarian State Premier and Christian Social Union (CSU) leader Markus Soeder gives a statement in Munich, Germany, April 20, 2021. Peter Kneffel/Pool via REUTERS

Bavarian State Premier and Christian Social Union (CSU) leader Markus Soeder gives a statement in Munich, Germany, April 20, 2021. Peter Kneffel/Pool via REUTERS

Bavarian State Premier and Christian Social Union (CSU) leader Markus Soeder gives a statement in Munich, Germany, April 20, 2021. Peter Kneffel/Pool via REUTERS

Harpist Sarah Christ performs in a COVID-19 rapid test centre which is located in the Palace of Culture amid the coronavirus disease (COVID-19) pandemic in Dresden, Germany, April 20, 2021. REUTERS/Matthias Rietschel

Harpist Sarah Christ performs in a COVID-19 rapid test centre which is located in the Palace of Culture amid the coronavirus disease (COVID-19) pandemic in Dresden, Germany, April 20, 2021. REUTERS/Matthias Rietschel

Harpist Sarah Christ performs in a COVID-19 rapid test centre which is located in the Palace of Culture amid the coronavirus disease (COVID-19) pandemic in Dresden, Germany, April 20, 2021. REUTERS/Matthias Rietschel

Harpist Sarah Christ performs in a COVID-19 rapid test centre which is located in the Palace of Culture amid the coronavirus disease (COVID-19) pandemic in Dresden, Germany, April 20, 2021. REUTERS/Matthias Rietschel

Harpist Sarah Christ performs in a COVID-19 rapid test centre which is located in the Palace of Culture amid the coronavirus disease (COVID-19) pandemic in Dresden, Germany, April 20, 2021. REUTERS/Matthias Rietschel

Harpist Sarah Christ performs in a COVID-19 rapid test centre which is located in the Palace of Culture amid the coronavirus disease (COVID-19) pandemic in Dresden, Germany, April 20, 2021. REUTERS/Matthias Rietschel

Migrant families disembark from an inflatable raft after crossing the Rio Grande into the United States from Mexico, in Roma, Texas, U.S., April 20, 2021. REUTERS/Go Nakamura

Harpist Sarah Christ performs in a COVID-19 rapid test centre which is located in the Palace of Culture amid the coronavirus disease (COVID-19) pandemic in Dresden, Germany, April 20, 2021. REUTERS/Matthias Rietschel

Harpist Sarah Christ performs in a COVID-19 rapid test centre which is located in the Palace of Culture amid the coronavirus disease (COVID-19) pandemic in Dresden, Germany, April 20, 2021. REUTERS/Matthias Rietschel

Harpist Sarah Christ performs in a COVID-19 rapid test centre which is located in the Palace of Culture amid the coronavirus disease (COVID-19) pandemic in Dresden, Germany, April 20, 2021. REUTERS/Matthias Rietschel

Harpist Sarah Christ performs in a COVID-19 rapid test centre which is located in the Palace of Culture amid the coronavirus disease (COVID-19) pandemic in Dresden, Germany, April 20, 2021. REUTERS/Matthias Rietschel

Harpist Sarah Christ performs in a COVID-19 rapid test centre which is located in the Palace of Culture amid the coronavirus disease (COVID-19) pandemic in Dresden, Germany, April 20, 2021. REUTERS/Matthias Rietschel

Migrant families make their way to the location where they turn themselves in to the U.S. Border Patrol after crossing the Rio Grande into the United States from Mexico, in Roma, Texas, U.S. April 20, 2021. REUTERS/Go Nakamura

Migrant families disembark from an inflatable raft after crossing the Rio Grande into the United States from Mexico, in Roma, Texas, U.S., April 20, 2021. REUTERS/Go Nakamura

Migrant families pray after crossing the Rio Grande into the United States from Mexico, in Roma, Texas, U.S. April 20, 2021. REUTERS/Go Nakamura

Migrant families disembark from an inflatable raft after crossing the Rio Grande into the United States from Mexico, in Roma, Texas, U.S., April 20, 2021. REUTERS/Go Nakamura

Tennis - WTA 500 - Stuttgart Open - Porsche-Arena, Stuttgart, Germany - April 20, 2021 Czech Republic's Karolina Muchova in action during her round of 32 match against Russia's Ekaterina Alexandrova Pool via REUTERS/Thomas Kienzle

Tennis - WTA 500 - Stuttgart Open - Porsche-Arena, Stuttgart, Germany - April 20, 2021 Russia's Ekaterina Alexandrova in action during her round of 32 match against Czech Pepublic's Karolina Muchova Pool via REUTERS/Thomas Kienzle

Tennis - WTA 500 - Stuttgart Open - Porsche-Arena, Stuttgart, Germany - April 20, 2021 Russia's Ekaterina Alexandrova in action during her round of 32 match against Czech Pepublic's Karolina Muchova Pool via REUTERS/Thomas Kienzle

Migrant families pray after crossing the Rio Grande into the United States from Mexico, in Roma, Texas, U.S. April 20, 2021. REUTERS/Go Nakamura

Migrant families make their way to the location where they turn themselves in to the U.S. Border Patrol after crossing the Rio Grande into the United States from Mexico, in Roma, Texas, U.S. April 20, 2021. REUTERS/Go Nakamura

Migrant families pray after crossing the Rio Grande into the United States from Mexico, in Roma, Texas, U.S. April 20, 2021. REUTERS/Go Nakamura

Migrant families pray after crossing the Rio Grande into the United States from Mexico, in Roma, Texas, U.S. April 20, 2021. REUTERS/Go Nakamura

Migrant families wait to be escorted by a local church group to the location where they turn themselves in to the U.S. Border Patrol after crossing the Rio Grande into the United States from Mexico, in Roma, Texas, U.S., April 19, 2021. Picture taken April 19, 2021. REUTERS/Go Nakamura

Migrant families wait to be escorted by a local church group to the location where they turn themselves in to the U.S. Border Patrol after crossing the Rio Grande into the United States from Mexico, in Roma, Texas, U.S., April 19, 2021. Picture taken April 19, 2021. REUTERS/Go Nakamura

Migrant families wait to be escorted by a local church group to the location where they turn themselves in to the U.S. Border Patrol after crossing the Rio Grande into the United States from Mexico, in Roma, Texas, U.S., April 20, 2021. REUTERS/Go Nakamura

Harpist Sarah Christ performs in a COVID-19 rapid test centre which is located in the Palace of Culture amid the coronavirus disease (COVID-19) pandemic in Dresden, Germany, April 20, 2021. REUTERS/Matthias Rietschel

Migrant families try to contact their relatives who live in the U.S. while waiting to be escorted by a local church group to the location where they turn themselves in to the U.S. Border Patrol after crossing the Rio Grande into the United States from Mexico, in Roma, Texas, U.S., April 19, 2021. Picture taken April 19, 2021. REUTERS/Go Nakamura

Migrant families wait to be escorted by a local church group to the location where they turn themselves in to the U.S. Border Patrol after crossing the Rio Grande into the United States from Mexico, in Roma, Texas, U.S., April 19, 2021. Picture taken April 19, 2021. REUTERS/Go Nakamura

Migrant families wait to be escorted by a local church group to the location where they turn themselves in to the U.S. Border Patrol after crossing the Rio Grande into the United States from Mexico, in Roma, Texas, U.S., April 19, 2021. Picture taken April 19, 2021. REUTERS/Go Nakamura

Migrant families disembark from an inflatable raft after crossing the Rio Grande into the United States from Mexico, in Roma, Texas, U.S., April 19, 2021. Picture taken April 19, 2021. REUTERS/Go Nakamura

Migrant families disembark from an inflatable raft after crossing the Rio Grande into the United States from Mexico, in Roma, Texas, U.S., April 19, 2021. Picture taken April 19, 2021. REUTERS/Go Nakamura

Portugal's European Affairs Secretary Ana Paula Zacarias, center, arrives to a European Foreign Ministers videoconference meeting at the European Council headquarters in Brussels, Belgium April 20, 2021. Francisco Seco/Pool via REUTERS

A Saudi volunteer, distributes boxes of Iftar meals provided by a charity organisation during the holy month of Ramadan, in Riyadh, Saudi Arabia, April 19, 2021. Picture taken April 19, 2021. REUTERS/Ahmed Yosri

Nouran Mutabaghani, a Saudi volunteer, prepares boxes of Iftar meals provided by a charity organisation during the holy month of Ramadan, in Riyadh, Saudi Arabia, April 19, 2021. Picture taken April 19, 2021. REUTERS/Ahmed Yosri

Nouran Mutabaghani, a Saudi volunteer, prepares boxes of Iftar meals provided by a charity organisation during the holy month of Ramadan, in Riyadh, Saudi Arabia, April 19, 2021. Picture taken April 19, 2021. REUTERS/Ahmed Yosri

Nouran Mutabaghani, a Saudi volunteer, distributes boxes of Iftar meals provided by a charity organisation during the holy month of Ramadan, in Riyadh, Saudi Arabia, April 19, 2021. Picture taken April 19, 2021. REUTERS/Ahmed Yosri

Soccer Football - Twelve of Europe's top football clubs launch a breakaway Super League - Liverpool, Britain - April 20, 2021 A anti Super League message on a Liverpool shirt outside Anfield as twelve of Europe's top football clubs launch a breakaway REUTERS/Phil Noble

Soccer Football - Twelve of Europe's top football clubs launch a breakaway Super League - Liverpool, Britain - April 20, 2021 A man cycles in front of anti Super League banners outside Anfield as twelve of Europe's top football clubs launch a breakaway REUTERS/Phil Noble

Soccer Football - Twelve of Europe's top football clubs launch a breakaway Super League - Liverpool, Britain - April 20, 2021 A anti Super League message on a Liverpool shirt outside Anfield as twelve of Europe's top football clubs launch a breakaway REUTERS/Phil Noble

An aerial view shows the statue of Pope Urbain II overlooking Champagne vineyards in the village of Chatillon-sur-Marne, France, April 14, 2021. Picture taken with a drone April 14, 2021 . REUTERS/Pascal Rossignol

Bottles of red wine are seen on display for sale in a wine shop in Paris, France, April 19, 2021. Picture taken April 19, 2021. REUTERS/Sarah Meyssonnier

French oenologist Sophie Pallas, who lost her senses of taste and smell after been infected with the coronavirus disease (COVID-19) and who now retrains her palate, holds a glass of wine as she poses during a wine tasting session in a shop in Paris, France, April 19, 2021. Picture taken April 19, 2021. REUTERS/Sarah Meyssonnier

Bottles of wine are seen on display for sale in a wine shop in Paris, France, April 19, 2021. Picture taken April 19, 2021. REUTERS/Sarah Meyssonnier

French Champagne-maker Charles Philipponnat, who doctors put into an induced coma for a week as the coronavirus disease (COVID-19) ravaged his body in October and awoke to find he had partially lost his senses, smells wine next to Thierry Garnier, cellar master, during a wine testing session to elaborate his Champagne in Mareuil-sur-Ay, France, April 14, 2021. Picture taken April 14, 2021. REUTERS/Pascal Rossignol

Didier Fages, President of French oenologists union, poses as he smells a glass of Champagne at Philipponnat Champagne house in Mareuil-sur-Ay, France, April 14, 2021. Picture taken April 14, 2021. REUTERS/Pascal Rossignol

An aerial view shows the statue of Virgin and Child overlooking Philipponnat Champagne vineyards in the village of Mareuil-sur-Ay, France, April 14, 2021. Picture taken with a drone April 14, 2021 . REUTERS/Pascal Rossignol

French Champagne-maker Charles Philipponnat, who doctors put into an induced coma for a week as the coronavirus disease (COVID-19) ravaged his body in October and awoke to find he had partially lost his senses, smells a glass of Champagne in his cellar in Mareuil-sur-Ay, France, April 14, 2021. Picture taken April 14, 2021. REUTERS/Pascal Rossignol

A view shows bottles and glasses during a wine testing session to elaborate Philipponnat Champagne in Mareuil-sur-Ay, France, April 14, 2021. Picture taken April 14, 2021. REUTERS/Pascal Rossignol