This is an older report but I didn't see it on the boards when I made a few searches. THought I'd post it here despite it's age!
news.bbc.co.uk...
Scientists have said a woman who died of bird flu probably contracted the disease from her daughter.
The researchers from the Thai Ministry of Public Health warn it is likely there will be more cases where the virus is passed from human to human.
Professor John Oxford, a leading UK expert, said the virus had broken down the "final door" which prevented it being spread between people.

Seems like the Z and Z+ strains that forced scientists to create a new method for creating flu vaccines, since they killed the eggs before any testing
could be done.
[edit on 11-10-2005 by sanctum]