Five human cases of H5N6 bird flu reported in China
Five human cases of the H5N6 strain of avian influenza have been reported in China in recent weeks.
A sign at the edge of an exclusion zone warns of the closure of a footpath after an outbreak of bird flu in the village of Upham in southern England, February 3, 2015.(photo credit: REUTERS/PETER NICHOLLS)Updated: 
