date:Aug 23, 2013
Researchers have found that domestic ducks seem to act as intermediate hosts for a variety of avian viruses because of their contact with migrating birds.
Ducks, which picked up bird flu from migrating birds, passed the virus on to chickens and humans were likely later infected with H7N9 avian flu after contact with chickens at live poultry markets in China, according to a new study published in the science journal, Nature.
A team of researchers set out to trace the root of the outbreak, which