Originally posted by bsherman
Isn't Newcastle desease a Bird Virus?
Yes, as it says in what I quoted:
"Well, knowing that Newcastle serum had helped some dogs, an that Newcastle disease had been transmitted to humans from birds, and it was related to Avian flu, I decided to go down that path and try to find someone who could test a sick dog’s blood for the presence of either of those viruses. It turned out to be much of a dead end. Incidentally, the benefit of the Newcastle serum could have been to boost the pups immune response by providing a foreign protein, and not necessarily a specific anti-Newcastle virus response."

Much like a cross medicine for one disease works to help another in a human.