Ducks were bird flu 'melting pot'

Ducks were the melting pot of viruses that led to the new bird flu emerging in China early this year, according to Chinese scientists tracking the evolution of the virus. Ducks picked up viruses from migrating birds and passed them onto chickens. via Pocket http://www.bbc.co.uk/news/health-23778709#sa-ns_mchannel=rss&ns_source=PublicRSS20-sa