This is not tech related but interesting, the family that died of bird flu in Indonesia had a strain that could be passed from human to human. It's not easily passed though and it appears like that strain killed itself off too.

The virus had mutated, but not into a form that could be easily transmitted from person to person - the key step that might lead to a global human flu pandemic that could kill millions. "The virus died out - it didn't go beyond the family. Like other cases of human-to-human transmission, this was a dead end," said WHO spokesman Dick Thompson.