Giardia lamblia (lamblia = species name) is the only one in this genus, no
other species. Beavers, and perhaps other rodents are primary reservior
for this protozoan. I've never heard of domesticated pets having the
organism. The microbe is transmitted via contaminated water.
In article <01bcb326$f7fe5260$2901ad24 at hugo>, ahfell at netmatters.co.uk
>>Would anyone like to comment on whether G. lamblia/G. duodenalis is
>transmitted between humans, dogs and cats, or whether strains/sub-species
>And when hikers get Giardiasis by drinking water from beaver ponds, what
>species is it?