From: 
ferretgirl6@cs.com 
Date: 2001-09-10 15:08:00 UTC
Subject: Re: [Ferret-Health-list] Re: Segregation of ADV (+ )vs( - ) 
            fererts
             In a message dated 9/10/2001 1:31:07 PM Eastern Daylight Time, 
            shurcool@infi.net writes: 
              Does this mean that, if your ferrets have already been exposed but 
              still test negative, that it's OK to put a ADV+ ferret with them?  
               
              Once they have been exposed, they can't get ADV from a future 
              ferret? 
              I can't seem to ask the question right, but maybe someone will 
              understand it. 
            I would like to know myself. It seems that some ferrets are 
            resistant to ADV. 
            They stay negative after repetive exposure. (I'm going off what was 
            said 
            earlier on this list.) It would be an important fact in ADV 
            research, and 
            these type of ferrets could be a control or have something usefull 
            in 
            preventing or stopping ADV.