<http://www.smallanimalchannel.com/ferrets/ferret-health/heartworm-and-ferrets.aspx> and for more info see also: http://www.miamiferret.org/heartworm.htm http://ferrethealth.org/archive/FHL10409 http://ferrethealth.org/archive/FHL10403 http://ferrethealth.org/archive/FHL353 and more at that archive http://www.ncbi.nlm.nih.gov/pubmed/20045834 http://www.ncbi.nlm.nih.gov/pubmed/18486691 http://www.ncbi.nlm.nih.gov/pubmed/10812548 http://www.ncbi.nlm.nih.gov/pubmed/9753800 and two much older ones in PubMed http://www.heartwormsociety.org/ http://www.edis.or.at/ Sukie (not a vet) Recommended ferret health links: http://pets.groups.yahoo.com/group/ferrethealth/ http://ferrethealth.org/archive/ http://www.afip.org/ferrets/index.html http://www.miamiferret.org/ http://www.ferrethealth.msu.edu/ http://www.ferretcongress.org/ http://www.trifl.org/index.shtml http://homepage.mac.com/sukie/sukiesferretlinks.html all ferret topics: http://listserv.ferretmailinglist.org/archives/ferret-search.html "All hail the procrastinators for they shall rule the world tomorrow." (2010, Steve Crandall) On change for its own sake: "You can go really fast if you just jump off the cliff." (2010, Steve Crandall) [Posted in FML 7217]