I did some research on this a long time ago as we have many HIV+ friends.
 
Ferrets can carry Toxoplasmosis(sp) but that the incidence of this occurring
is very low.
 
Masks when changing the litter box are recommended.
 
The problem of things like colds/flus are only a real problem for people who
are very, very sick; T-cell counts below 500.
 
Elwin Bullard
Ferrets: Ootz, Possum, Doris and eternally Winnie
Sugar gliders: Myra and Myron
http://home1.gte.net/bounty
http://home1.gte.net/bounty/cemetary1.htm
[Posted in FML issue 2177]