Dr Sheik Umar Khan, the lead doctor in Sierra Leone's fight against the Ebola outbreak, has died, the Ministry of Health and Sanitation said Tuesday.
Khan, 39, tested positive for the virus last week, after treating over 100 patients.
He was head of the country's only haemorrhagic fever hospital, located in the eastern district of Kenema, and he championed the fight against the Ebola outbreak when it was confirmed back in May.
"It is a big and irreparable loss to Sierra Leone as he was the only specialist the county had in viral haemorrhagic fevers," said Dr Brima Kargbo, Chief Medical Officer at the ministry.
Dr Khan was undergoing treatment at the Kailahun treatment centre under the management of MSF, where he died.
President Ernest Bai Koroma was due to visit him on Wednesday.