Sierra Leone Ebola escapee found

Sierra Leone's authorities have taken in a woman who went on the run after testing positive for the Ebola virus.

The 32-year-old turned herself in after local radio broadcast appeals asking for help locating her, officials said.

Since February, more than 660 people have died of Ebola in West Africa - the world's deadliest outbreak to date.

Nigeria has put all its entry points on red alert after confirming the death there of a Liberian man who was carrying the highly contagious virus.

The man died after arriving at Lagos airport on Tuesday, in the first Ebola case in Africa's most populous country.

The outbreak began in southern Guinea and spread to Liberia and Sierra Leone.

Hospital stormed

The virus, which kills up to 90% of those infected, spreads through contact with an infected person's bodily fluids.

Patients have a better chance of survival if they receive treatment early.

The Sierra Leone woman was the first registered Ebola case in the capital Freetown.

Both she and her parents - who are suspected of having the virus - have been taken to Ebola treatment centres in the east of the country, health ministry spokesman Sidi Yahya Tunis told the BBC.

Her family had forcibly removed her from a public hospital on Thursday after she tested positive for Ebola, the BBC's Umaru Fofana reports from the capital, Freetown.

Ebola virus disease (EVD)

Coloured transmission electron micro graph of a single Ebola virus, the cause of Ebola fever

Symptoms include high fever, bleeding and central nervous system damage
Fatality rate can reach 90%
Incubation period is two to 21 days
There is no vaccine or cure
Supportive care such as rehydrating patients who have diarrhoea and vomiting can help recovery
Fruit bats are considered to be the natural host of the virus

She was one of dozens of people who have tested positive but are unaccounted for, our correspondent adds.

The Ebola cases in Sierra Leone are centred in the country's eastern districts of Kenema and Kailahun, just over the border from the Guekedou region of Guinea where the outbreak started.

Police said thousands of people joined a street protest in Kenema on Friday over the government's handling of the outbreak.

Earlier this week, it was announced that the doctor leading Sierra Leone's fight against Ebola was being treated for the virus.

On Thursday, the World Health Organization said that 219 people had died of Ebola in Sierra Leone.

Members of Doctors Without Borders (MSF) wearing protective gear walk outside the isolation ward of the Donka Hospital, on 23 July 2014 in Conakry

There is no vaccine or cure for Ebola, which spreads via bodily fluids including sweat

Meanwhile, in Nigeria, the health minister Onyebuchi Chukwu said that all other passengers on board the flight with the infected man had been traced and were being monitored.

The patient had "avoided contact with the general public" between the airport and the hospital, he said.

"All ports of entry to Nigeria, including airports, sea ports and land borders have been placed on red alert," he added.