We see outbreaks of some of the other strains of Avian Influenza all the time. It is endemic [occurs naturally] in the gastro-intestinal tract of just about all waterfowl. They are immune to the disease itself and act as a host.
But our domesticated birds have no resistance and hence the problems created.
Because this was an H5N2, and could possibly mutate from a Low Pathenogenic to a High Pathenogenice strain, the flocks was destroyed. Here is another link:http://www.aphis.usda.gov/newsroom/content...7/04/lpai.shtml
Our poultry industry here in the USA monitors itself rigorously, and does not take any chances when it comes to AI. We destroy the flock quickly, and confirm if it was Low Path or High Path later. And we blood check every flock within 5 to 6 miles of the infected flock.
Note that the testing we do just tells us if the bird has been exposed. This particular flock of turkeys was not sick, and were not dying. But they tested positive for the antibodies so they were destroyed. If this had been done in Asia from day 1 of identifying the H5N1 strains, we may have contained it locally there. Unfortunately that was not done, and now we have the H5N1 strain from Indonesia to England and it could become endemic in some of the fowl there meaning we will continue to have outbreaks making it more and more likely the virus will eventually mutate into a form which can spread person to person.
When you think they are ganging up against you....."Illigitimus non es carborundum"