Giardia duodenalis and G. felis are a cosmopolitan protozoan intestinal parasite that causes diarrhoea of cats[1]. Co-infection with Tritrichomonas fetus is common[2]. Similar to Isospora spp, and Cryptosporidium spp, Giardia spp have been reported to be found in a significant number of cats in multi-cat households and cat shelters, with a higher rate of infection in younger animals[3]. The infective Giardia trophozoites inhabit the mucosal surfaces of the small intestine, […]