Unproven H7N9 spread by human

A recent study to be the first to make sure that the scarce H7N9 bird flu virus transmitted from birds to humans. However, this study found no evidence of transmission from human to human.In this study, researchers tested samples from 20 chickens, five doves, and 57 ducks at six farms in China, where the patient contracted the bird flu. Two of the five pigeons and chickens known to four of the 20