Rwanda has placed a German student with Ebola-like symptoms in isolation while awaiting test results checking for the deadly tropical disease, the health ministry said late last night.

"Samples from the suspected case have been sent for testing to an international accredited laboratory for approval, results will be available in 48 hours," the health ministry said in a statement.

The patient is the first to be tested in Rwanda since the outbreak in west Africa.

Minister of Health Agnes Binagwaho said the patient was a German medical student, who had recently spent time in Liberia.

He had a fever and malaria but for "100% security" Rwanda had quarantined him until test results, expected within two days, were back, she said.

Ebola has claimed nearly 1,000 lives in west Africa in the worst outbreak in four decades, prompting the World Health Organization last week to declare the epidemic a global health emergency.

Like other nations across east Africa, Rwanda said it had put in place measures against the deadly virus.

"Surveillance systems and emergency management systems have been established," the health ministry said.

"Health workers have been trained across the country and are vigilant."

Nigeria today confirmed a new Ebola case in Lagos, according to the health minister.

Meanwhile, the Ivory Coast has announced that it has banned all flights from countries hit by Ebola.

The Liberian army has also put a third province under quarantine in an attempt to prevent the spread of the deadly virus.

"Lofa county in the north has been quarantined by the army. So from now on, no one will be allowed to go to Lofa, no one will come out of there," President Ellen Johnson Sirleaf said, after similar measures were taken in the provinces of Boma and Grand Cape Mount.