giardia genus of anaerobic flagellated protozoan parasiiardiasis. giardiasis. giardia intestinalis protozoan

abdominal anaerobic anatomy biology cell colon cycle cyst disease duodenalis flagellated genus giardia giardiasis graphic human illustration infecting infection infectious infective intestinal intestinalis intestine lamblia life medical medicine metamonada microbiology microorganism microscope microscopic parasiiardiasis parasite parasitic parasitology phylum poster protozoan resistant science scientific small structure system trophozoite vector