A Cuban doctor who survived his diagnoses of Ebola vowed on Saturday to return to Sierra Leone to continue treating patients, Reuters reported.

Doctor Felix Baez contracted Ebola when he was in West Africa treating patients and was sent for treatment in Geneva at a Swiss hospital.

"I will finish what I started. I am returning to Sierra Leone," the 43-year-old doctor said to reporters after being treated for the virus.

Cuba has won the Caribbean island international praise for sending over 300 doctors and nurses to West Africa to fight the biggest outbreak of Ebola in history.

When Baez was sent to Geneva for treatment of Ebola, doctors used the experimental drug ZMab on arrival, and he quickly started to recover.

Geneva's chief medical officer Jacques-André Romand said Baez started to recover within two days with ZMab, and the drug was also sent to Rome for an Italian doctor who has contracted Ebola.

Felix was the first of Cuba's doctors to contract the virus, BBC reported.

He was also given a Japanese flu drug for this treatment, which has never been tested but now he has made full recovery.

The World Health Organization included the untested flu drug favipiravir made by Japan's Fujifilm to its list of potential Ebola treatments, according to Reuters.

It is not clear if Cuban officials would allow the doctor to return to Africa as of yet.

Since the Ebola outbreak a little over 19,000 people have been infected by the outbreak in Sierra Leone, Guinea and Liberia. Over 7,000 have died from the Ebola epidemic.

More healthcare workers who contracted Ebola in Sierra Leone have died than the workers sent to Liberia and Guinea. There were 106 healthcare workers in Sierra Leone out of 138 have died from the Ebola virus.

A government and hospital source said the virus recently killed two other doctors in Sierra Leone.