Hi, seems to me unexplainably like the outbreak on Ruegen / Germany in 2006.
[.. It is not yet clear how the animals were infected with H5N1, although Britain's deputy chief veterinary officer said it may have been carried by a wild bird. ..]
The poultry flocks in their (nearly perfect) isolation were infected by wild birds? And where was the Virus in the meantime, between march 2006 and today? Best greets, Werner