OTTAWA, October 13. /TASS/. The first human clinical trials of a Canadian-developed vaccine against Ebola will start in the United States on Monday, the Canadian health minister said.

"We are able to share some very promising and hopeful news in the fight against Ebola," Rona Ambrose said adding that the trials will be conducted at a medical center in Maryland.

Ambrose said that the new vaccine was "100 per cent effective" when tested on animals.

She added that if the vaccine proved safe and effective in the trials, it could stop the devastating outbreak that has alreday killed more than 4,000 people in West Africa.

Ebola virus outbreak

West African Guinea, Sierra Leone and Liberia are the worst affected countries with an overwhelming number of cases - 4,024 dead and 8,376 infected.

The most serious Ebola situation is still in Liberia, with a death toll of 2,300 and more than 4,000 infected.

The Ebola situation in other African countries has not changed: eight people died from Ebola and 20 are infected in Nigeria, one case of virus transmission was registered in Senegal.

One patient died of Ebola in the United States and one infection case reported from Spain.