Britain's Prime Minister Boris Johnson gives an update on relaxing restrictions imposed on the country during the coronavirus disease (COVID-19) pandemic at a news conference inside the Downing Street Briefing Room in London, Britain July 12, 2021. Daniel Leal-Olivas/Pool via REUTERS 

Britain's Prime Minister Boris Johnson gives an update on relaxing restrictions imposed on the country during the coronavirus disease (COVID-19) pandemic at a news conference inside the Downing Street Briefing Room in London, Britain July 12, 2021. Daniel Leal-Olivas/Pool via REUTERS 

Britain's Prime Minister Boris Johnson gives an update on relaxing restrictions imposed on the country during the coronavirus disease (COVID-19) pandemic at a news conference inside the Downing Street Briefing Room in London, Britain July 12, 2021. Daniel Leal-Olivas/Pool via REUTERS 

Britain's Prime Minister Boris Johnson gives an update on relaxing restrictions imposed on the country during the coronavirus disease (COVID-19) pandemic at a news conference inside the Downing Street Briefing Room in London, Britain July 12, 2021. Daniel Leal-Olivas/Pool via REUTERS 

A man relaxes on Karon beach as Phuket gets ready to open to overseas tourists from July 1 allowing fully vaccinated foreigns to visit the resort island without quarantine, Phuket, Thailand June 29, 2021. REUTERS/Jorge Silva 

People relax in chairs around a fountain in the Tuileries Garden in Paris, France, June 28, 2021. REUTERS/Sarah Meyssonnier 

Asylum seekers, under the Migrant Protection Protocols (MPP) program, do relaxation exercises at the Leona Vicario temporary migrant shelter before being transferred to continue their asylum request in the United States, in Ciudad Juarez, Mexico June 18, 2021. Picture taken June 18, 2021. REUTERS/Jose Luis Gonzalez 

People relax at Lido beach, Mogadishu's Abdiaziz District, Somalia June 18, 2021. REUTERS/Feisal Omar 

Fully vaccinated fans arrive for a concert by Coldplay on NBC's “Today” show, as New York State relaxed restrictions after reaching a 70 percent vaccination threshold for the coronavirus disease (COVID-19), in Rockefeller Center in New York City, U.S., June 17, 2021. REUTERS/Brendan McDermid 

Fully vaccinated fans arrive for a concert by Coldplay on NBC's "Today" show, as New York State relaxed restrictions after reaching a 70 percent vaccination threshold for the coronavirus disease (COVID-19), in Rockefeller Center in New York City, U.S., June 17, 2021. REUTERS/Brendan McDermid 

Fans show proof of being fully vaccinated as they arrive for a concert by Coldplay on NBC's "Today" show, as New York State relaxed restrictions after reaching a 70 percent vaccination threshold for the coronavirus disease (COVID-19), in Rockefeller Center in New York City, U.S., June 17, 2021. REUTERS/Brendan McDermid 

Fully vaccinated fans enjoy a concert by Coldplay on NBC's “Today” show, as New York State relaxed restrictions after reaching a 70 percent vaccination threshold for the coronavirus disease (COVID-19), in Rockefeller Center in New York City, U.S., June 17, 2021. REUTERS/Brendan McDermid 

Fully vaccinated fans enjoy a concert by Coldplay on NBC's “Today” show, as New York State relaxed restrictions after reaching a 70 percent vaccination threshold for the coronavirus disease (COVID-19), in Rockefeller Center in New York City, U.S., June 17, 2021. REUTERS/Brendan McDermid 

Fully vaccinated fans enjoy a concert by Coldplay on NBC's "Today" show, as New York State relaxed restrictions after reaching a 70 percent vaccination threshold for the coronavirus disease (COVID-19), in Rockefeller Center in New York City, U.S., June 17, 2021. REUTERS/Brendan McDermid 

Fully vaccinated fans enjoy a concert by Coldplay on NBC's "Today" show, as New York State relaxed restrictions after reaching a 70 percent vaccination threshold for the coronavirus disease (COVID-19), in Rockefeller Center in New York City, U.S., June 17, 2021. REUTERS/Brendan McDermid 

Fully vaccinated fans enjoy a concert by Coldplay on NBC's "Today" show, as New York State relaxed restrictions after reaching a 70 percent vaccination threshold for the coronavirus disease (COVID-19), in Rockefeller Center in New York City, U.S., June 17, 2021. REUTERS/Brendan McDermid 

A South African sea lion relaxes in its enclosure at Schoenbrunn Zoo on a sunny day in Vienna, Austria June 17, 2021. REUTERS/Leonhard Foeger 

A South African sea lion relaxes in its enclosure at Schoenbrunn Zoo on a sunny day in Vienna, Austria June 17, 2021. REUTERS/Leonhard Foeger 

People enjoy a sunny day on Wall Street, on the first day of relaxed restrictions after New York State reached a 70 percent vaccination threshold for the coronavirus disease (COVID-19), outside of the New York Stock Exchange (NYSE) in New York City, U.S., June 16, 2021. REUTERS/Brendan McDermid 

People enjoy a sunny day on Wall Street, on the first day of relaxed restrictions after New York State reached a 70 percent vaccination threshold for the coronavirus disease (COVID-19), outside of the New York Stock Exchange (NYSE) in New York City, U.S., June 16, 2021. REUTERS/Brendan McDermid 

A tour group pose together on the steps of Federal Hall on Wall Street, on the first day of relaxed restrictions after New York State reached a 70 percent vaccination threshold for the coronavirus disease (COVID-19), across from the New York Stock Exchange (NYSE) in New York City, U.S., June 16, 2021. REUTERS/Brendan McDermid 

People enjoy a sunny day on Wall St., on the first day of relaxed restrictions after New York State reached a 70 percent vaccination threshold for the coronavirus disease (COVID-19), outside of the New York Stock Exchange (NYSE) in New York City, U.S., June 16, 2021. REUTERS/Brendan McDermid 

A tourist holds her mask while using her phone for a selfie on Wall Street, on the first day of relaxed restrictions after New York State reached a 70 percent vaccination threshold for the coronavirus disease (COVID-19), outside of the New York Stock Exchange (NYSE) in New York City, U.S., June 16, 2021. REUTERS/Brendan McDermid 

Tourists look around on Wall Street, on the first day of relaxed restrictions after New York State reached a 70 percent vaccination threshold for the coronavirus disease (COVID-19), outside of the New York Stock Exchange (NYSE) in New York City, U.S., June 16, 2021. REUTERS/Brendan McDermid 

A tour guide speaks with her mask pulled down, on the first day of relaxed restrictions after New York State reached a 70 percent vaccination threshold for the coronavirus disease (COVID-19), outside of the New York Stock Exchange (NYSE) on Wall Street in New York City, U.S., June 16, 2021. REUTERS/Brendan McDermid 

Sarah Bulat (L) and Tricia Watts relax in the water during a heat wave in Lake Havasu, Arizona, U.S. June 15, 2021. REUTERS/Bridget Bennett 

Transgender woman Daniella Milla Tokodi relaxes after her performance in a bar in Budapest, Hungary, June 12, 2021. Picture taken June 12, 2021. REUTERS/Bernadett Szabo 

People wearing protective face masks walk at the financial and business district of La Defense in Nanterre as work rules have been relaxed with teleworking requirements gradually being lifted amid the coronavirus disease (COVID-19) outbreak in France, June 10, 2021. REUTERS/Pascal Rossignol 

People wearing protective face masks walk at the financial and business district of La Defense in Nanterre as work rules have been relaxed with teleworking requirements gradually being lifted amid the coronavirus disease (COVID-19) outbreak in France, June 10, 2021. REUTERS/Pascal Rossignol 

People wearing protective face masks walk at the financial and business district of La Defense in Nanterre as work rules have been relaxed with teleworking requirements gradually being lifted amid the coronavirus disease (COVID-19) outbreak in France, June 10, 2021. REUTERS/Pascal Rossignol 

People wearing protective face masks walk at the financial and business district of La Defense in Nanterre as work rules have been relaxed with teleworking requirements gradually being lifted amid the coronavirus disease (COVID-19) outbreak in France, June 10, 2021. REUTERS/Pascal Rossignol 

A man wearing a protective face mask walks at the financial and business district of La Defense in Nanterre as work rules have been relaxed with teleworking requirements gradually being lifted amid the coronavirus disease (COVID-19) outbreak in France, June 10, 2021. REUTERS/Pascal Rossignol 

People enjoy the night sitting at bars and restaurants, as the region of Veneto becomes a "white zone", following a relaxation of the coronavirus disease (COVID-19) restrictions with only masks and social distancing required, in Venice, Italy, June 7, 2021. REUTERS/Yara Nardi 

A woman walks, as the region of Veneto becomes a "white zone", following a relaxation of the coronavirus disease (COVID-19) restrictions with only masks and social distancing required, in Venice, Italy, June 7, 2021. REUTERS/Yara Nardi 

People sit at a restaurant, as the region of Veneto becomes a "white zone", following a relaxation of the coronavirus disease (COVID-19) restrictions with only masks and social distancing required, in Venice, Italy, June 7, 2021. REUTERS/Yara Nardi 

People walk, as the region of Veneto becomes a "white zone", following a relaxation of the coronavirus disease (COVID-19) restrictions with only masks and social distancing required, in Venice, Italy, June 7, 2021. REUTERS/Yara Nardi 

People enjoy the night sitting at bars and restaurants, as the region of Veneto becomes a "white zone", following a relaxation of the coronavirus disease (COVID-19) restrictions with only masks and social distancing required, in Venice, Italy, June 7, 2021. REUTERS/Yara Nardi 

People sit at a restaurant, as the region of Veneto becomes a "white zone", following a relaxation of the coronavirus disease (COVID-19) restrictions with only masks and social distancing required, in Venice, Italy, June 7, 2021. REUTERS/Yara Nardi 

Gondoliers wait for customers, as the region of Veneto becomes a "white zone", following a relaxation of the coronavirus disease (COVID-19) restrictions with only masks and social distancing required, in Venice, Italy, June 7, 2021. REUTERS/Yara Nardi 

Women walk on the Rialto Bridge, as the region of Veneto becomes a "white zone", following a relaxation of the coronavirus disease (COVID-19) restrictions with only masks and social distancing required, in Venice, Italy, June 7, 2021. REUTERS/Yara Nardi 

A woman walks with her dog near a canal, as the region of Veneto becomes a "white zone", following a relaxation of the coronavirus disease (COVID-19) restrictions with only masks and social distancing required, in Venice, Italy, June 7, 2021. REUTERS/Yara Nardi 

People sit on a bench, as the region of Veneto becomes a "white zone", following a relaxation of the coronavirus disease (COVID-19) restrictions with only masks and social distancing required, in Venice, Italy, June 7, 2021. REUTERS/Yara Nardi 

A couple walk near a canal, as the region of Veneto becomes a "white zone", following a relaxation of the coronavirus disease (COVID-19) restrictions with only masks and social distancing required, in Venice, Italy, June 7, 2021. REUTERS/Yara Nardi 

A man walks near a canal, as the region of Veneto becomes a "white zone", following a relaxation of the coronavirus disease (COVID-19) restrictions with only masks and social distancing required, in Venice, Italy, June 7, 2021. REUTERS/Yara Nardi 

Tourists enjoy a sunny day at Rialto Bridge, as the region of Veneto becomes a "white zone", following a relaxation of coronavirus disease (COVID-19) restrictions with only masks and social distancing required, in Venice, Italy, June 7, 2021. REUTERS/Yara Nardi 

People sit at a restaurant, as the region of Veneto becomes a "white zone", following a relaxation of coronavirus disease (COVID-19) restrictions with only masks and social distancing required, in Venice, Italy, June 7, 2021. REUTERS/Yara Nardi 

A gondolier is seen through the arcades in St. Mark's Square, as the region of Veneto becomes a "white zone", following a relaxation of coronavirus disease (COVID-19) restrictions with only masks and social distancing required, in Venice, Italy, June 7, 2021. REUTERS/Yara Nardi 

People sit at a restaurant in St. Mark's Square, as the region of Veneto becomes a "white zone", following a relaxation of coronavirus disease (COVID-19) restrictions with only masks and social distancing required, in Venice, Italy, June 7, 2021. REUTERS/Yara Nardi 

Tourists take a selfie in St. Mark's Square, as the region of Veneto becomes a "white zone", following a relaxation of coronavirus disease (COVID-19) restrictions with only masks and social distancing required, in Venice, Italy, June 7, 2021. REUTERS/Yara Nardi 

People sit at a restaurant in St. Mark's Square, as the region of Veneto becomes a "white zone", following a relaxation of coronavirus disease (COVID-19) restrictions with only masks and social distancing required, in Venice, Italy, June 7, 2021. REUTERS/Yara Nardi 

A man sits under arcades at St. Mark's Square, as the region of Veneto becomes a "white zone", following a relaxation of coronavirus disease (COVID-19) restrictions with only masks and social distancing required, in Venice, Italy, June 7, 2021. REUTERS/Yara Nardi 

People sit at a restaurant in St. Mark's Square, as the region of Veneto becomes a "white zone", following a relaxation of coronavirus disease (COVID-19) restrictions with only masks and social distancing required, in Venice, Italy, June 7, 2021. REUTERS/Yara Nardi 

Bride Milica Ljumovic goes down the stairs of the Rialto Bridge, as the region of Veneto becomes a "white zone", following a relaxation of COVID-19 restrictions with only masks and social distancing required, in Venice, Italy, June 7, 2021. REUTERS/Yara Nardi 

Tourists pose for a picture at the Rialto Bridge, as the region of Veneto becomes a "white zone", following a relaxation of COVID-19 restrictions with only masks and social distancing required, in Venice, Italy, June 7, 2021. REUTERS/Yara Nardi 

Gondoliers help tourists to get on the gondolas, as the region of Veneto becomes a "white zone", following a relaxation of COVID-19 restrictions with only masks and social distancing required, in Venice, Italy, June 7, 2021. REUTERS/Yara Nardi TPX IMAGES OF THE DAY 

A seagull flies in front of the Rialto Bridge, as the region of Veneto becomes a "white zone", following a relaxation of COVID-19 restrictions with only masks and social distancing required, in Venice, Italy, June 7, 2021. REUTERS/Yara Nardi 

People sit at a restaurant near the Rialto Bridge, as the region of Veneto becomes a "white zone", following a relaxation of COVID-19 restrictions with only masks and social distancing required, in Venice, Italy, June 7, 2021. REUTERS/Yara Nardi 

A child looks at gondolas from the Rialto Bridge, as the region of Veneto becomes a "white zone", following a relaxation of COVID-19 restrictions with only masks and social distancing required, in Venice, Italy, June 7, 2021. REUTERS/Yara Nardi 

Gondoliers raw near Rialto Bridge, as the region of Veneto becomes a "white zone", following a relaxation of COVID-19 restrictions with only masks and social distancing required, in Venice, Italy, June 7, 2021. REUTERS/Yara Nardi 

Tourists enjoy a sunny day, as the region of Veneto becomes a "white zone", following a relaxation of COVID-19 restrictions with only masks and social distancing required, in Venice, Italy, June 7, 2021. REUTERS/Yara Nardi