On 2/25/06, Fran wrote:
Let me ask you this. Can an adult, otherwise healthy bird be a carrier
of polyoma, not actually sick but
able to transfer the virus to a baby bird?
I may not explain this correctly 100 percent, but I understand that
asymptomatic adults can pass the virus on to baby birds if they are
shedding the virus.
I believe it can be spread or transferred to baby birds that an infected
parent is feeding, from the infected cells that slough off in the crop of
the parent bird and go along with the food that is passed.
Also feather dust cells can contain it and the baby bird breathes it in
and contracts the disease. Fecal matter is another route of transmission.
But I was also told that infected parents can produce perfectly normal
offspring in spite of them being carriers.
I guess there are many variables that make it difficult to give a