A young woman reacts as a health worker injects her with the Ebola vaccine, in Goma, Democratic Republic of Congo, August 5, 2019. REUTERS/Baz Ratner TPX IMAGES OF THE DAY

A child reacts as a health worker injects her with the Ebola vaccine, in Goma, Democratic Republic of Congo, August 5, 2019. REUTERS/Baz Ratner

Health workers dressed in protective suits are seen at the newly constructed MSF(Doctors Without Borders) Ebola treatment centre in Goma, Democratic Republic of Congo, August 4, 2019.REUTERS/Baz Ratner

A health worker fills a syringe with Ebola vaccine before injecting it to a patient, in Goma, Democratic Republic of Congo, August 5, 2019. REUTERS/Baz Ratner

A health worker injects a man with Ebola vaccine in Goma, Democratic Republic of Congo, August 5, 2019. REUTERS/Baz Ratner

An ambulance waits next to a health clinic to transport a suspected Ebola patient, in Goma in the Democratic Republic of Congo, August 5, 2019.REUTERS/Baz Ratner

A woman and child wait to receive the Ebola vaccination in Goma, Democratic Republic of Congo, August 5, 2019. REUTERS/Baz Ratner

A health worker dressed in a protective suit talks to medical staff at the newly constructed MSF(Doctors Without Borders) Ebola treatment centre in Goma, Democratic Republic of Congo, August 4, 2019.REUTERS/Baz Ratner

A health worker speaks to people who are waiting to receive the Ebola vaccination in Goma, Democratic Republic of Congo, August 5, 2019. REUTERS/Baz Ratner

A construction worker adjusts a window frame on a structure at the newly constructed MSF(Doctors Without Borders) Ebola treatment centre in Goma, Democratic Republic of Congo, August 4, 2019.REUTERS/Baz Ratner

Health workers dressed in protective suits disinfect an ambulance transporting a suspected Ebola patient to the newly constructed MSF(Doctors Without Borders) Ebola treatment centre in Goma, Democratic Republic of Congo, August 4, 2019.REUTERS/Baz Ratner

A health worker holds an infant at the low risk zone of newly constructed MSF(Doctors Without Borders) Ebola treatment centre in Goma, Democratic Republic of Congo, August 4, 2019.REUTERS/Baz Ratner

Health workers dressed in protective suits help a suspected Ebola patient into the newly constructed MSF(Doctors Without Borders) Ebola treatment centre in Goma, Democratic Republic of Congo, August 3, 2019. Picture taken August 3, 2019.REUTERS/Baz Ratner

A health worker dressed in protective suit disinfects an ambulance transporting a suspected Ebola patient to the newly constructed MSF (Doctors Without Borders) Ebola treatment centre in Goma, Democratic Republic of Congo, August 4, 2019.REUTERS/Baz Ratner

A Health worker dressed in protective suits is seen at the newly constructed MSF (Doctors Without Borders) Ebola treatment centre in Goma in the Democratic Republic of Congo, August 3, 2019.REUTERS/Baz Ratner

A Health worker dressed in protective suit is seen at the newly constructed MSF(Doctors Without Borders) Ebola treatment centre in Goma in the Democratic Republic of Congo, August 3, 2019.REUTERS/Baz Ratner

A Health worker dressed in protective suits is seen at the newly constructed MSF (Doctors Without Borders) Ebola treatment centre in Goma in the Democratic Republic of Congo, August 3, 2019.REUTERS/Baz Ratner

Children sit on top of a monument in a cemetery in Goma in Democratic Republic of Congo, August 3, 2019.REUTERS/Baz Ratner

Congolese people ride a motorcycle past the newly constructed MSF (Doctors Without Borders) Ebola treatment centre in Goma in Democratic Republic of Congo, August 3, 2019.REUTERS/Baz Ratner

Congolese volunteer Ferdinand Tangenyi displays a flip book he uses to inform people about the Ebola virus, in Goma in the Democratic Republic of Congo, August 3, 2019.REUTERS/Baz Ratner

Children look at a billboard providing information about Ebola outside the newly constructed MSF (Doctors Without Borders) Ebola treatment centre in Goma in Democratic Republic of Congo, August 3, 2019.REUTERS/Baz Ratner

Men sit under a beer advertisement, in Goma in the Democratic Republic of Congo, August 3, 2019.REUTERS/Baz Ratner

Congolese volunteer Ferdinand Tangenyi displays a flip book he uses to inform people about the Ebola virus, in Goma in the Democratic Republic of Congo, August 3, 2019.REUTERS/Baz Ratner

A health worker uses a thermometer to checks the temperature of a child in Goma in the Democratic Republic of Congo, August 3, 2019.REUTERS/Baz Ratner

Health workers dressed in protective suits are seen at the newly constructed MSF (Doctors Without Borders) Ebola treatment centre in Goma in the Democratic Republic of Congo, August 3, 2019.REUTERS/Baz Ratner