Bird flu outbreak continues to spread in UK, North America
Thousands of birds have died in recent weeks in the US, Canada and the UK, sparking international concern.
Chickens await vaccination against bird flu at the settlement Peredovoi 100 km (62 miles) from the Russia's southern city of Stavropol, March 11, 2006.(photo credit: EDUARD KORNIYENKO/REUTERS)ByTZVI JOFFREUpdated:
