Advertisements Giardia is an infectious parasite and responsible for the diarrheal illness known as giardiasis. Giardia mainly infects humans, cats, and dogs. Giardia Classification Domain: Eukaryota (unranked): Excavata Phylum: Metamonada Order: Diplomonadida Family: Hexamitidae Subfamily: Giardiinae Genus: Giardia Giardia Giardia Characteristics Giardia infection/Giardiasis Giardiasis definition Giardiasis is an intestinal infection caused by the protozoan Giardia … Read more