Danee Devore writes:
>To my surprise, though, that did not happen.  After the initial
>infection, the ones that were negative have remained negative.
>Apparently, some ferrets have a natural immunity to ADV, or are able
>to fight the virus off.
 
Danee,
 
Can the negative ferrets that live amoung the positives be carriers?
 
Robin
[Posted in FML issue 4117]