Avian influenza is spreading to many new countries. But migrating wild birds may not be the only culprits
"IN AROUND a month, bird flu has appeared in a seemingly alarming number of new countries. The disease is already endemic in the poultry flocks of much of Asia. In the face of the relentless march of the H5N1 virus around the world, fatalism is not an appropriate response. Better to look at exactly what is going on.
The arrival of bird flu in Europe and its neighbourhood has caused most of the flap, yet the cases in Azerbaijan, Bulgaria, Greece, Italy, Slovenia, Iran, Austria, Germany, France, Hungary and Croatia are only in wild birds. In Nigeria, Egypt and India, the virus has been discovered to be widely distributed across poultry flocks."
http://www.economist.com/science/displaystory.cfm?story_id=5545392
"IN AROUND a month, bird flu has appeared in a seemingly alarming number of new countries. The disease is already endemic in the poultry flocks of much of Asia. In the face of the relentless march of the H5N1 virus around the world, fatalism is not an appropriate response. Better to look at exactly what is going on.
The arrival of bird flu in Europe and its neighbourhood has caused most of the flap, yet the cases in Azerbaijan, Bulgaria, Greece, Italy, Slovenia, Iran, Austria, Germany, France, Hungary and Croatia are only in wild birds. In Nigeria, Egypt and India, the virus has been discovered to be widely distributed across poultry flocks."
http://www.economist.com/science/displaystory.cfm?story_id=5545392