bird-flued pigeons from canada, page-4

Well, in a way you said it mate......"The three pidgeons from Canada had antibodies against the Avian flue....hence they are (were) healthy".......
The operative word here are "healthy".
The three birds that had the antibodies had them for one and only reason: To combat the avian-flu viruses they had come in contact with.
If we assume the 3 pidgeons were not as healthy as they were, what would have happened?
They would have been infected by the fatal disease and they would have carried it with them to Australia.
Fortunately they were "diagnosed" early and our health authorities took the right measures-banning all bird importations from Canada (and, hopefully from all other parts of the world), thus -to a certain extent- minimising the infection of our birds by the avian flu virus.
Here it is also important to note that the "excuse' given by the Canadian authorities, who had already examined and passed as healthy (!!) the birds, is that they ONLY check the birds to see if they are actually infected by the disease and they are carriers of the Avian flu virus....
In other words they (birds) were not checked for antibodies against the virus, and thus were found healthy!!!!
Not a very scientific examination-method I would say.....Do you agree?