Table 2.

Currently recognised species of Giardia and genetic groupings (assemblages) within Giardia duodenalis

Species/assemblages	Hosts
G. duodenalis
Assemblage A	Humans, primates, dogs, cats, livestock, rodents, wild mammals
Assemblage B	Humans, primates, dogs, cattle, some species of wild mammals
Assemblage C	Dogs, other canids
Assemblage D	Dogs, other canids
Assemblage E	Cattle and other hoofed livestock
Assemblage F	Cats
Assemblage G	Rodents
Assemblage H	Marine vertebrates
Giardia agilis	Amphibians
Giardia ardeae	Birds
Giardia microti	Rodents
Giardia muris	Rodents
Giardia psittaci	Birds