Follows outbreak of H5N1 virus which can be deadly in humans . Chickens culled and eggs buried in pits in bid to contain virus . Virus has caused deaths of About 250,000 people worldwide since 2006 .
Follows outbreak of H5N1 virus which can be deadly in humans . Chickens culled and eggs buried in pits in bid to contain virus . Virus has caused deaths of nearly 400 people worldwide since 2006 .