Ebola victims in Nigeria's commercial capital Lagos will receive an experimental drug called Nano Silver, the country's top health official said on Thursday, in a step that introduces a new untested treatment to the fight against an outbreak in several West African countries.

Nigeria's Minister of Health, Onyebuchi Chukwu, said the experimental drug came from a Nigerian scientist, whose name he wouldn't disclose. He said the drug, which was on its way to Lagos, would aim to treat the eight Nigerians who have tested positive...