People chat after the arriving of a plane carrying people from 26 nations who were stranded in Panama for months due to a coronavirus lockdown, in Frankfurt, Germany, May 27, 2020. REUTERS/Tillmann Blasshofer

People hug each other after the arriving of a plane carrying people from 26 nations who were stranded in Panama for months due to a coronavirus lockdown, in Frankfurt, Germany, May 27, 2020. REUTERS/Michael Dalder

People hug each other after the arriving of a plane carrying people from 26 nations who were stranded in Panama for months due to a coronavirus lockdown, in Frankfurt, Germany, May 27, 2020. REUTERS/Tillmann Blasshofer

Police officers are pictured during the curfew as the coronavirus disease (COVID-19) outbreak continues, in Panama City, Panama March 31, 2020. REUTERS/Erick Marciscano

A man drives his motorcycle along an empty avenue during the curfew as the coronavirus disease (COVID-19) outbreak continues, in Panama City, Panama March 31, 2020. REUTERS/Erick Marciscano

A banner reading "Stay at Home" is pictured near an empty avenue during the curfew as the coronavirus disease (COVID-19) outbreak continues, in Panama City, Panama March 31, 2020. REUTERS/Erick Marciscano

Police officers check the documents of a driver during the curfew as the coronavirus disease (COVID-19) outbreak continues, in Panama City, Panama March 31, 2020. REUTERS/Erick Marciscano

The cruise ship MS Zaandam, where passengers have died on board, navigates through the pacific side of the Panama Canal, in Panama City, Panama, as the coronavirus disease (COVID-19) outbreak continues, March 29, 2020. REUTERS/Erick Marciscan

The cruise ship MS Zaandam, where passengers have died on board, navigates through the pacific side of the Panama Canal, in Panama City, Panama, as the coronavirus disease (COVID-19) outbreak continues, March 29, 2020. REUTERS/Erick Marciscan TPX IMAGES OF THE DAY

The cruise ship MS Zaandam, where passengers have died on board, navigates through the pacific side of the Panama Canal, in Panama City, Panama, as the coronavirus disease (COVID-19) outbreak continues, March 29, 2020. REUTERS/Erick Marciscan

The cruise ship MS Zaandam where passengers have died on board, as the coronavirus disease (COVID-19) outbreak continues, navigates through the pacific side of the Panama Canal, in Panama City, Panama, March 29, 2020. REUTERS/Erick Marciscan

The Holland America Line cruise ship MS Zaandam is pictured, where passengers have died onboard, as the coronavirus disease (COVID-19) outbreak continues, in Panama City, Panama March 28, 2020. REUTERS/Erick Marciscano

The Holland America Line cruise ship MS Zaandam is pictured, where passengers have died onboard, as the coronavirus disease (COVID-19) outbreak continues, in Panama City, Panama March 28, 2020. REUTERS/Erick Marciscano

The Holland America Line cruise ship MS Zaandam is pictured, where passengers have died onboard, as the coronavirus disease (COVID-19) outbreak continues, in Panama City, Panama March 28, 2020. REUTERS/Erick Marciscano

An offshore supply vessel is seen next to the cruise ship MS Rotherdam, which brought supplies and Covid-19 test kits to the MS Zaandam, where four passengers died, is pictured off the coast of Panama City, Panama March 27, 2020. REUTERS/Erick Marciscano

An offshore supply vessel is seen next to the cruise ship MS Rotherdam, which brought supplies and Covid-19 test kits to the MS Zaandam, where four passengers died, pictured off the coast of Panama City, Panama March 27, 2020. REUTERS/Erick Marciscano

An offshore supply vessel is seen next to the cruise ship MS Rotherdam, which brought supplies and Covid-19 test kits to the MS Zaandam, where four passengers died, pictured off the coast of Panama City, Panama March 27, 2020. REUTERS/Erick Marciscano,

An offshore supply vessel is seen next to the cruise ship MS Rotherdam, which brought supplies and Covid-19 test kits to the MS Zaandam, where four passengers died, pictured off the coast of Panama City, Panama March 27, 2020. REUTERS/Erick Marciscano,

An offshore supply vessel is seen next to the cruise ship MS Rotherdam, which brought supplies and Covid-19 test kits to the MS Zaandam, where four passengers died, pictured off the coast of Panama City, Panama March 27, 2020. REUTERS/Erick Marciscano,

The cruise ship MS Zaandam is pictured off the coast of Panama City, after four passengers died on board, as the coronavirus disease (COVID-19) outbreak continues, March 27, 2020. REUTERS/Erick Marciscano

The cruise ship MS Zaandam is pictured off the coast of Panama City, after four passengers died on board, as the coronavirus disease (COVID-19) outbreak continues, March 27, 2020. REUTERS/Erick Marciscano TPX IMAGES OF THE DAY

The cruise ship MS Zaandam is pictured off the coast of Panama City, after four passengers died on board, as the coronavirus disease (COVID-19) outbreak continues, March 27, 2020. REUTERS/Erick Marciscano

The cruise ship MS Zaandam is pictured after four passengers have died on board, as the coronavirus disease (COVID-19) outbreak continues, in Panama City, Panama March 27, 2020. REUTERS/Erick Marciscano

The cruise ship MS Zaandam is pictured after four passengers have died on board, as the coronavirus disease (COVID-19) outbreak continues, in Panama City, Panama March 27, 2020. REUTERS/Erick Marciscano

The cruise ship MS Zaandam is pictured after four passengers have died on board, as the coronavirus disease (COVID-19) outbreak continues, in Panama City, Panama March 27, 2020. REUTERS/Erick Marciscano

The cruise ship MS Zaandam is pictured after four passengers have died on board, as the coronavirus disease (COVID-19) outbreak continues, in Panama City, Panama March 27, 2020. REUTERS/Erick Marciscano

The cruise ship MS Zaandam is pictured after four passengers have died on board, as the coronavirus disease (COVID-19) outbreak continues, in Panama City, Panama March 27, 2020. REUTERS/Erick Marciscano

The cruise ship MS Zaandam is pictured after four passengers have died on board, as the coronavirus disease (COVID-19) outbreak continues, in Panama City, Panama March 27, 2020. REUTERS/Erick Marciscano

The military mobile hospital that will care for patients infected with coronavirus disease (COVID-19) in San Miguel, on the outskirts of Buenos Aires, Argentina March 24, 2020. REUTERS/Matias Baglietto

The military mobile hospital that will care for patients infected with coronavirus disease (COVID-19) in San Miguel, on the outskirts of Buenos Aires, Argentina March 24, 2020. REUTERS/Matias Baglietto

A soldier is seen at the military mobile hospital that will care for patients infected with coronavirus disease (COVID-19) in San Miguel, on the outskirts of Buenos Aires, Argentina March 24, 2020. REUTERS/Matias Baglietto

A soldier is seen at the military mobile hospital that will care for patients infected with coronavirus disease (COVID-19) in San Miguel, on the outskirts of Buenos Aires, Argentina March 24, 2020. REUTERS/Matias Baglietto

A soldier is seen at the military mobile hospital that will care for patients infected with coronavirus disease (COVID-19) in San Miguel, on the outskirts of Buenos Aires, Argentina March 24, 2020. REUTERS/Matias Baglietto

Uruguayan cellist Karina Nunez performs for her neighbours at the balcony of her department during the coronavirus disease (COVID-19) outbreak, in Panama City, Panama March 20, 2020. Picture taken March 20, 2020. REUTERS/Erick Marciscano

Uruguayan cellist Karina Nunez performs for her neighbours at the balcony of her department during the coronavirus disease (COVID-19) outbreak, in Panama City, Panama March 20, 2020. Picture taken March 20, 2020. REUTERS/Erick Marciscano

Uruguayan cellist Karina Nunez waves from the balcony of her department after performing for her neighbours during the coronavirus disease (COVID-19) outbreak, in Panama City, Panama March 20, 2020. Picture taken March 20, 2020. REUTERS/Erick Marciscano

Copa Airlines' plane is pictured at Tocumen International Aiport after the company said it will suspend all operations in order to weather the coronavirus disease (COVID-19) crisis, in Panama City, Panama March 21, 2020. REUTERS/Erick Marciscano

Copa Airlines' planes are pictured at Tocumen International Aiport after the company said it will suspend all operations in order to weather the coronavirus disease (COVID-19) crisis, in Panama City, Panama March 21, 2020. REUTERS/Erick Marciscano

Copa Airlines' planes are pictured at Tocumen International Aiport after the company said it will suspend all operations in order to weather the coronavirus disease (COVID-19) crisis, in Panama City, Panama March 21, 2020. REUTERS/Erick Marciscano

Copa Airlines' planes are pictured at Tocumen International Aiport after the company said it will suspend all operations in order to weather the coronavirus disease (COVID-19) crisis, in Panama City, Panama March 21, 2020. REUTERS/Erick Marciscano

A Copa Airlines employee, wearing a protective mask, talks to a passenger at Tocumen International Airport after the Panamanian government restricted flights in recent days due to the coronavirus disease (COVID-19) outbreak, in Panama City, Panama March 18, 2020. REUTERS/Erick Marciscano

A general view shows passengers at the counters of Copa Airlines at Tocumen International Airport after the Panamanian government restricted flights in recent days due to the coronavirus disease (COVID-19) outbreak, in Panama City, Panama March 18, 2020. REUTERS/Erick Marciscano

Passengers talk to Copa Airlines employees, wearing protective masks, at Tocumen International Airport after the Panamanian government restricted flights in recent days due to the coronavirus disease (COVID-19) outbreak, in Panama City, Panama March 18, 2020. REUTERS/Erick Marciscano

A Copa Airlines employee, wearing a protective mask, talks to a passenger at Tocumen International Airport after the Panamanian government restricted flights in recent days due to the coronavirus disease (COVID-19) outbreak , in Panama City, Panama March 18, 2020. REUTERS/Erick Marciscano

A Copa Airlines employee, wearing a protective mask, works at the airline counter at Tocumen International Airport after the Panamanian government restricted flights in recent days due to the coronavirus disease (COVID-19) outbreak, in Panama City, Panama March 18, 2020. REUTERS/Erick Marciscano

A Copa Airlines plane sits in the tarmac is pictured at Tocumen International Airport after the Panamanian government restricted flights in recent days due to the coronavirus disease outbreak (COVID-19), in Panama City, Panama March 18, 2020. REUTERS/Erick Marciscano

Yelitza Morles talks on her mobile phone next to her daughter as Brayan Graterol checks his mobile phone at the Tocumen International Airport amid travel restrictions due to the outbreak of coronavirus disease (COVID-19), in Panama City, Panama March 17, 2020. REUTERS/Marcelo Rochabrun

A man stands at an elementary school, closed as part of the government's measures following an outbreak of the coronavirus (COVID-19), in Panama City, Panama March 12, 2020. REUTERS/Erick Marciscano

A general view shows an elementary school, closed as part of the government's measures following an outbreak of the coronavirus (COVID-19), in Panama City, Panama March 12, 2020. REUTERS/Erick Marciscano

People wear protective masks following an outbreak of the coronavirus (COVID-19) in Panama City, Panama March 12, 2020. REUTERS/Erick Marciscano

Panama's Health Minister Rosario Turner speaks during a news conference to announce the country's first death from the coronavirus, in Panama City, Panama March 10, 2020. REUTERS/Erick Marciscano

Panama's Health Minister Rosario Turner speaks during a news conference to announce the country's first death from the coronavirus, in Panama City, Panama March 10, 2020. REUTERS/Erick Marciscano

Spain's Infanta Elena visits the Miraflores Locks at the Panama Canal, in Panama City, Panama March 5, 2020. REUTERS/Erick Marciscano

Spain's Infanta Elena visits the Miraflores Locks at the Panama Canal, in Panama City, Panama March 5, 2020. REUTERS/Erick Marciscano

Spain's Infanta Elena (C) visits the Miraflores Locks at the Panama Canal, in Panama City, Panama March 5, 2020. REUTERS/Erick Marciscano

Spain's Infanta Elena (2nd L) visits the Miraflores Locks at the Panama Canal, in Panama City, Panama March 5, 2020. REUTERS/Erick Marciscano

Spain's Infanta Elena visits the Panamanian Association of Assistance to the Burned Child in Panama City, Panama March 4, 2020. REUTERS/Erick Marciscano

Spain's Infanta Elena visits the Panamanian Association of Assistance to the Burned Child in Panama City, Panama March 4, 2020. REUTERS/Erick Marciscano

Spain's Infanta Elena visits the Panamanian Association of Assistance to the Burned Child in Panama City, Panama March 4, 2020. REUTERS/Erick Marciscano

Spain's Infanta Elena visits the Panamanian Association of Assistance to the Burned Child in Panama City, Panama March 4, 2020. REUTERS/Erick Marciscano