Tide turning in Ebola fight after hard lessons

A top U.N. official in the fight against Ebola greeted just three patients at one treatment center he visited this week in Sierra Leone. Families in Liberia are no longer required to cremate the remains of loved ones to halt the spread of the virulent disease.

And in the streets of Guinea's capital, it is rare to see the formerly ubiquitous plastic buckets of bleach and water for hand washing.

Ten months after it dawned on health officials that they were facing an unprecedented Ebola outbreak in West Africa, experts and officials agree the tide is turning, although previous lulls have proved short-lived.

There is still no vaccine o