A health worker walks between beds at a temporary field hospital set up in a sports complex by Medecins Sans Frontieres (MSF) during the coronavirus disease (COVID-19) outbreak in Khayelitsha township near Cape Town, South Africa, July 21, 2020. REUTERS/Mike Hutchings 

A health worker takes a break from her work at a temporary field hospital set up by Medecins Sans Frontieres (MSF) during the coronavirus disease (COVID-19) outbreak in Khayelitsha township near Cape Town, South Africa, July 21, 2020. REUTERS/Mike Hutchings 

A health worker treats a patient at a temporary field hospital set up by Medecins Sans Frontieres (MSF) during the coronavirus disease (COVID-19) outbreak in Khayelitsha township near Cape Town, South Africa, July 21, 2020. REUTERS/Mike Hutchings 

Minor migrants sit near tents at a migrant campsite housing about 100 adolescents, installed by Medecins Sans Frontieres (MSF - Doctors Without Borders) and four other humanitarian groups, in Paris, France, June 30, 2020. REUTERS/Gonzalo Fuentes 

The foot of a minor migrant who stands inside a tent is seen at a migrant campsite housing about 100 adolescents, installed by Medecins Sans Frontieres (MSF - Doctors Without Borders) and four other humanitarian groups, in Paris, France, June 30, 2020. REUTERS/Gonzalo Fuentes 

A minor migrant stands near tents at a migrant campsite housing about 100 adolescents, installed by Medecins Sans Frontieres (MSF - Doctors Without Borders) and four other humanitarian groups, in Paris, France, June 30, 2020. REUTERS/Gonzalo Fuentes 

Minor migrants sit near tents at a migrant campsite housing about 100 adolescents, installed by Medecins Sans Frontieres (MSF - Doctors Without Borders) and four other humanitarian groups, in Paris, France, June 30, 2020. REUTERS/Gonzalo Fuentes 

A view shows a migrant campsite housing about 100 adolescents, installed by Medecins Sans Frontieres (MSF - Doctors Without Borders) and four other humanitarian groups, in Paris, France, June 30, 2020. REUTERS/Gonzalo Fuentes 

A view shows a migrant campsite housing about 100 adolescents, installed by Medecins Sans Frontieres (MSF - Doctors Without Borders) and four other humanitarian groups, in Paris, France, June 30, 2020. REUTERS/Gonzalo Fuentes 

Minor migrants sit near tents at a migrant campsite housing about 100 adolescents, installed by Medecins Sans Frontieres (MSF - Doctors Without Borders) and four other humanitarian groups, in Paris, France, June 30, 2020. REUTERS/Gonzalo Fuentes 

A member of Medecins Sans Frontieres (MSF - Doctors Without Borders) sits near tents at a migrant campsite housing about 100 adolescents, installed by MSF and four other humanitarian groups, in Paris, France, June 30, 2020. REUTERS/Gonzalo Fuentes 

A volunteer sits near tents at a migrant campsite housing about 100 adolescents, installed by Medecins Sans Frontieres (MSF - Doctors Without Borders) and four other humanitarian groups, in Paris, France, June 30, 2020. REUTERS/Gonzalo Fuentes 

A minor migrant sits near tents at a migrant campsite housing about 100 adolescents, installed by Medecins Sans Frontieres (MSF - Doctors Without Borders) and four other humanitarian groups, in Paris, France, June 30, 2020. REUTERS/Gonzalo Fuentes 

A minor migrant sits near tents at a migrant campsite housing about 100 adolescents, installed by Medecins Sans Frontieres (MSF - Doctors Without Borders) and four other humanitarian groups, in Paris, France, June 30, 2020. REUTERS/Gonzalo Fuentes 

A view shows a migrant campsite housing about 100 adolescents, installed by Medecins Sans Frontieres (MSF - Doctors Without Borders) and four other humanitarian groups, in Paris, France, June 30, 2020. REUTERS/Gonzalo Fuentes 

A member of the health personnel with the medical charity Medecin Sans Frontieres or Doctors Without Borders (MSF) gets ready at the dressing area before attending to patients infected with the coronavirus disease (COVID-19), in Port-au-Prince, Haiti June 23, 2020. Picture taken June 23, 2020. REUTERS/Jeanty Junior Augustin 

Health personnel with the medical charity Medecin Sans Frontieres or Doctors Without Borders (MSF) attend to a patient infected with the coronavirus disease (COVID-19), at the MSF's facilities, in Port-au-Prince, Haiti June 23, 2020. Picture taken June 23, 2020. REUTERS/Jeanty Junior Augustin 

Health personnel with the medical charity Medecin Sans Frontieres or Doctors Without Borders (MSF) attend to a patient infected with the coronavirus disease (COVID-19), at the MSF's facilities, in Port-au-Prince, Haiti June 23, 2020. Picture taken June 23, 2020. REUTERS/Jeanty Junior Augustin 

Health personnel with the medical charity Medecin Sans Frontieres or Doctors Without Borders (MSF) get ready at the dressing area before attending to patients infected with the coronavirus disease (COVID-19), at the MSF's facilities, in Port-au-Prince, Haiti June 23, 2020. Picture taken June 23, 2020. REUTERS/Jeanty Junior Augustin 

Health personnel with the medical charity Medecin Sans Frontieres or Doctors Without Borders (MSF) attend to a patient infected with the coronavirus disease (COVID-19), at the MSF's facilities, in Port-au-Prince, Haiti June 23, 2020. Picture taken June 23, 2020. REUTERS/Jeanty Junior Augustin 

A Congolese Medecins Sans Frontieres (MSF) health worker is seen as they prepare the introduction of the second ebola vaccine produced by Johnson & Johnson, in Majengo neighborhood of Goma, Democratic Republic of Congo, November 14, 2019. REUTERS/Fiston Mahamba 

Congolese residents gather around Medecins Sans Frontieres (MSF) health workers as they prepare the introduction of the second ebola vaccine produced by Johnson & Johnson, in Majengo neighborhood of Goma, Democratic Republic of Congo, November 14, 2019. REUTERS/Fiston Mahamba 

Congolese residents gather around Medecins Sans Frontieres (MSF) health workers as they prepare the introduction of the second ebola vaccine produced by Johnson & Johnson, in Majengo neighborhood of Goma, Democratic Republic of Congo, November 14, 2019. REUTERS/Fiston Mahamba 

Girls sit outside the house Vianey Kombi, 31, an Ebola survivor and caregiver at Medecins Sans Frontieres' Ebola Treatment Centre in Beni in the Democratic Republic of Congo, October 6, 2019. REUTERS/Zohra Bensemra 

A Medecins Sans Frontieres (MSF) worker paddles a boat through floods in Pibor, Boma state, in the Greater Upper Nile region of South Sudan November 1, 2019. Picture taken November 1, 2019. REUTERS/Samir Bol 

An Italian doctor at the Pozzallo port, Vincenzo Morello carries a child as migrants disembark at the port after spending nearly two weeks on board the Medecins Sans Frontieres (MSF)-operated Ocean Viking, on the island of Sicily, Italy, October 30, 2019. REUTERS/Antonio Parrinello 

Migrants disembark at the port of Pozzallo after spending nearly two weeks on board the Medecins Sans Frontieres (MSF)-operated Ocean Viking, on the island of Sicily, Italy, October 30, 2019. REUTERS/Antonio Parrinello 

A migrant disembarks at the port of Pozzallo after spending nearly two weeks on board the Medecins Sans Frontieres (MSF)-operated Ocean Viking, on the island of Sicily, Italy, October 30, 2019. REUTERS/Antonio Parrinello 

A migrant disembarks at the port of Pozzallo after spending nearly two weeks on board the Medecins Sans Frontieres (MSF)-operated Ocean Viking, on the island of Sicily, Italy, October 30, 2019. REUTERS/Antonio Parrinello 

Migrants disembark at the port of Pozzallo after spending nearly two weeks on board the Medecins Sans Frontieres (MSF)-operated Ocean Viking, on the island of Sicily, Italy, October 30, 2019. REUTERS/Antonio Parrinello 

Migrants disembark at the port of Pozzallo after spending nearly two weeks on board the Medecins Sans Frontieres (MSF)-operated Ocean Viking, on the island of Sicily, Italy, October 30, 2019. REUTERS/Antonio Parrinello 

Migrants disembark at the port of Pozzallo after spending nearly two weeks on board the Medecins Sans Frontieres (MSF)-operated Ocean Viking, on the island of Sicily, Italy, October 30, 2019. REUTERS/Antonio Parrinello 

Migrants disembark at the port of Pozzallo after spending nearly two weeks on board the Medecins Sans Frontieres (MSF)-operated Ocean Viking, on the island of Sicily, Italy, October 30, 2019. REUTERS/Antonio Parrinello 

Migrants disembark at the port of Pozzallo after spending nearly two weeks on board the Medecins Sans Frontieres (MSF)-operated Ocean Viking, on the island of Sicily, Italy, October 30, 2019. REUTERS/Antonio Parrinello 

Migrants disembark at the port of Pozzallo after spending nearly two weeks on board the Medecins Sans Frontieres (MSF)-operated Ocean Viking, on the island of Sicily, Italy, October 30, 2019. REUTERS/Antonio Parrinello 

A migrant disembarks at the port of Pozzallo after spending nearly two weeks on board the Medecins Sans Frontieres (MSF)-operated Ocean Viking, on the island of Sicily, Italy, October 30, 2019. REUTERS/Antonio Parrinello 

Preparations are made at the port of Pozzallo for migrants to disembark after spending nearly two weeks on board the Medecins Sans Frontieres (MSF)-operated Ocean Viking, on the island of Sicily, Italy, October 30, 2019. REUTERS/Antonio Parrinello 

Vianey Kombi, 31, An Ebola survivor and caregiver, takes care of a three-month-old orphan girl who is confirmed to be suffering from Ebola, inside the Biosecure Emergency Care Unit (CUBE) at Medecins Sans Frontieres (MSF) Ebola treatment center (ETC) in Beni, in the Democratic Republic of Congo, October 6, 2019. Kombi was a maths teacher when he contracted Ebola last November. He found it impossible to return to his former job and now cares for Ebola patients. "It hurts when I walk past the school where I was teaching, and the children who recognise me start screaming in my direction: Ebola, Ebola," Kombi said. "We have all been accused of receiving money to say that we had Ebola," he said. "It hurts a lot when your community treats you as corrupt after you've been at your sickest." REUTERS/Zohra Bensemra 

Vianey Kombi, 31, An Ebola survivor and caregiver, takes care of a three-month-old orphan girl who is confirmed to be suffering from Ebola, inside the Biosecure Emergency Care Unit (CUBE) at Medecins Sans Frontieres (MSF) Ebola treatment center (ETC) in Beni, in the Democratic Republic of Congo, October 6, 2019. Kombi was a maths teacher when he contracted Ebola last November. He found it impossible to return to his former job and now cares for Ebola patients. "It hurts when I walk past the school where I was teaching, and the children who recognise me start screaming in my direction: Ebola, Ebola," Kombi said. "We have all been accused of receiving money to say that we had Ebola," he said. "It hurts a lot when your community treats you as corrupt after you've been at your sickest." REUTERS/Zohra Bensemra SEARCH "EBOLA ZOHRA" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

Grace, a health worker, uses a clock to time an intravenous drip for a three-month-old orphan girl who is confirmed to be suffering from Ebola, inside the Biosecure Emergency Care Unit (CUBE) at Medecins Sans Frontieres (MSF) Ebola treatment center (ETC) in Beni, in the Democratic Republic of Congo, October 6, 2019. REUTERS/Zohra Bensemra SEARCH "EBOLA ZOHRA" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

Joanne Liu, international president of Medecins Sans Frontieres (MSF - Doctors Without Borders), and Hassiba Hadj Sahraoui, Humanitarian Affairs Adviser at Medecins sans Frontieres, attend a news conference, about the restart of their migrant rescue mission off the coast of Libya with SOS Mediterranee's new ship, the Ocean Viking, in Paris, France, July 22, 2019. REUTERS/Benoit Tessier 

Joanne Liu, international president of Medecins Sans Frontieres (MSF - Doctors Without Borders), attends a news conference, about the restart of their migrant rescue mission off the coast of Libya with SOS Mediterranee's new ship, the Ocean Viking, in Paris, France, July 22, 2019. REUTERS/Benoit Tessier 

Francois Thomas, president of SOS Mediterranee, and Joanne Liu, international president of Medecins Sans Frontieres (MSF - Doctors Without Borders), and Hassiba Hadj Sahraoui, Humanitarian Affairs Adviser at Medecins sans Frontieres, attend a news conference, about the restart of their migrant rescue mission off the coast of Libya with SOS Mediterranee's new ship, the Ocean Viking, in Paris, France, July 22, 2019. REUTERS/Benoit Tessier 

Frederic Penard, Director of Operations, SOS Mediterranee, Sophie Beau, co-founder of the charity SOS Mediterranee, Francois Thomas, president of SOS Mediterranee, and Joanne Liu, international president of Medecins Sans Frontieres (MSF - Doctors Without Borders), and Hassiba Hadj Sahraoui , Humanitarian Affairs Adviser at Medecins sans Frontieres, attend a news conference, about the restart of their migrant rescue mission off the coast of Libya with SOS Mediterranee's new ship, the Ocean Viking, in Paris, France, July 22, 2019. REUTERS/Benoit Tessier 

Sophie Beau, co-founder of the charity SOS Mediterranee, Francois Thomas, president of SOS Mediterranee, and Joanne Liu, international president of Medecins Sans Frontieres (MSF - Doctors Without Borders), attend a news conference, about the restart of their migrant rescue mission off the coast of Libya with SOS Mediterranee's new ship, the Ocean Viking, in Paris, France, July 22, 2019. REUTERS/Benoit Tessier 

Sophie Beau, co-founder of the charity SOS Mediterranee, Francois Thomas, president of SOS Mediterranee, and Joanne Liu, international president of Medecins Sans Frontieres (MSF - Doctors Without Borders), attend a news conference, about the restart of their migrant rescue mission off the coast of Libya with SOS Mediterranee's new ship, the Ocean Viking, in Paris, France, July 22, 2019. REUTERS/Benoit Tessier 

Joanne Liu, international president of Medecins Sans Frontieres (MSF - Doctors Without Borders), attends a news conference, about the restart of their migrant rescue mission off the coast of Libya with SOS Mediterranee's new ship, the Ocean Viking, in Paris, France, July 22, 2019. REUTERS/Benoit Tessier 

Francois Thomas, president of SOS Mediterranee, and Joanne Liu, international president of Medecins Sans Frontieres (MSF - Doctors Without Borders), attend a news conference, about the restart of their migrant rescue mission off the coast of Libya with SOS Mediterranee's new ship, the Ocean Viking, in Paris, France, July 22, 2019. REUTERS/Benoit Tessier 

Medecins Sans Frontieres (MSF) staffs inspect ebola preparedness facility at the Bwera general hospital near the border with the Democratic Republic of Congo in Bwera, Uganda, June 14, 2019. REUTERS/James Akena 

The logo of Medecins Sans Frontieres (MSF - Doctors Without Borders) is seen at the international medical humanitarian organisation MSF logistique centre in Merignac near Bordeaux, France, December 6, 2018. REUTERS/Regis Duvignau 

An employee of Medecins Sans Frontieres (MSF - Doctors Without Borders) puts a sticker on a car at the international medical humanitarian organisation MSF logistique centre in Merignac near Bordeaux, France, December 6, 2018. REUTERS/Regis Duvignau 

A sticker of Medecins Sans Frontieres (MSF - Doctors Without Borders) is pictured on a box of drugs for Nigeria, at the international medical humanitarian organisation MSF logistique centre in Merignac near Bordeaux, France, December 6, 2018. REUTERS/Regis Duvignau 

The logo of Medecins Sans Frontieres (MSF - Doctors Without Borders) is seen at the international medical humanitarian organisation MSF logistique centre in Merignac near Bordeaux, France, December 6, 2018. REUTERS/Regis Duvignau 

The logo of Medecins Sans Frontieres (MSF - Doctors Without Borders) is seen at the international medical humanitarian organisation MSF logistique centre in Merignac near Bordeaux, France, December 6, 2018. REUTERS/Regis Duvignau 

The logo of Medecins Sans Frontieres (MSF - Doctors Without Borders) is seen at the international medical humanitarian organisation MSF logistique centre in Merignac, near Bordeaux, France, December 6, 2018. REUTERS/Regis Duvignau 

The logo of Medecins Sans Frontieres (MSF - Doctors Without Borders) is seen on the back of an employee at the international medical humanitarian organisation MSF logistique centre in Merignac near Bordeaux, France, December 6, 2018. REUTERS/Regis Duvignau 

The logo of Medecins Sans Frontieres (MSF - Doctors Without Borders) is seen at the international medical humanitarian organisation MSF logistique centre in Merignac near Bordeaux, France, December 6, 2018. REUTERS/Regis Duvignau 

The logo of Medecins Sans Frontieres (MSF - Doctors Without Borders) is seen at the international medical humanitarian organisation MSF logistique centre in Merignac near Bordeaux, France, December 6, 2018. REUTERS/Regis Duvignau 

An employee of Medecins Sans Frontieres (MSF - Doctors Without Borders) puts a flag on a car at the international medical humanitarian organisation MSF logistique centre in Merignac near Bordeaux, France, December 6, 2018. REUTERS/Regis Duvignau 

An employee of Medecins Sans Frontieres (MSF - Doctors Without Borders) puts a stickers on a car at the international medical humanitarian organisation MSF logistique centre in Merignac near Bordeaux, France, December 6, 2018. REUTERS/Regis Duvignau