BBC         22 September 2014 Last updated at 14:11 ET

A three-day curfew aimed at containing the Ebola outbreak in Sierra Leone has been declared a success by authorities.

They say more than a million households were surveyed and 130 new cases discovered.

Sierra Leone is one of the countries worst affected by the outbreak, with nearly 600 of the almost 2,800 total deaths recorded so far.

Some health groups have criticised the lockdown, saying it would destroy trust between patients and doctors.

Nearly all of the deaths in the world's worst Ebola outbreak have been recorded in Guinea, Liberia and Sierra Leone.

The World Health Organization (WHO) says the situations in Senegal and Nigeria have now been "pretty much contained".

According to the UN agency, the number of overall deaths from Ebola has risen to 2,793 and the disease remains "a public health emergency of international concern".

The deadly virus is transmitted through sweat, blood and saliva, and there is no proven cure.

In other developments:

At the time of Wednesday’s announc

ement out of Guinea that seven of nine missing Ebola workers had been found dead, we knew little. Men with knives had abducted members of a group sent there to spread awareness about the disease. Two relief workers were missing; the rest, dead. Six suspects were in custody.

By Friday morning, we knew more. These details, the stuff of horror films. A local government group of relief workers—a mix of doctors, religious leaders, and journalists—had arrived Monday to educate the remote southeastern village of Womey about Ebola. Just 24 hours after their arrival, violence broke out, allegedly sparked by the false belief that a disinfectant being sprayed was actually the disease itself. An angry mob brandishing machetes, stones, and knives lashed out.

It was humid, muddy and raining when WHO staff approached a compound in heavily populated New Kru Town, outside Monrovia, Liberia to look for people who have had contact with people infected with Ebola. A WHO technical adviser from Rwanda, sent in to help the zone coordinator, spoke to a woman who had cared for an Ebola patient. She understood the need to be monitored for the disease, but another man with whom the team talked denied knowing anyone with Ebola and refused further contact with the team.