Nigeria's Mealth Minister Onyebuchi Chukwu has stressed that the capital Abuja is free of Ebola cases.
Nigeria has a third confirmed case of Ebola disease in the oil hub of Port Harcourt, bringing the country's total infections to 16, with around 200 people under surveillance, the health minister said in statements on Monday.
The outbreak of Ebola in West Africa is the world's worst ever.
It has killed at least 1,550 people, and the World Health Organisation says it could infect 20,000 more.