Could anyone tell me if ferrets are susceptible to Lyme disease? I've read that cats seem to be immune. I live in Bucks County, Pennsylvania and Bucks has just been listed as #7 in the country in terms of reported human infections. I would like to take Cody out more this summer but want to be careful. Also, are ferrets susceptible to heartworm infection? My vet didn't know. Thanks, Jim Cristea <[log in to unmask]> [Posted in FML issue 1158]