A police officer places a barrier across a closed road leading to a chicken farm after an outbreak of...
A police officer places a barrier across a closed road leading to a chicken farm, after an outbreak of bird flu in the village of Upham in southern England February 3, 2015. 10,000 chickens are to be slaughtered at the farm following the outbreak of the H7 strain of avian influenza, local media reported. REUTERS/Peter Nicholls (REUTERS - Tags: ANIMALS FOOD ENVIRONMENT)