A genus of protozoa that infect the gastrointestinal tract of some animals, including humans. Giardia have a large sucking disk which permits them to adhere to the intestinal lining. The species that infects humans (and causes diarrhea) is Giardia lamblia. Named after the French biologist Alfred Mathieu Giard (1846-1908). See also: Giardia lamblia.

A microrganism that is commonly found in untreated surface water and can be removed by filtration. It is resistant to disinfectants such as chlorine.

(n) a suspected cause of diarrhea in humans

A genus of Flagellate intestinal Eukaryotes parasitic in various Vertebrates, including Humans. Characteristics include the presence of four pairs of Flagella arising from a complicated system of Axon [..]

A genus of flagellate intestinal protozoa parasitic in various vertebrates, including humans. Characteristics include the presence of four pairs of flagella arising from a complicated system of axonem [..]

A parasite that attaches to the intestinal lining, destroying tissue and preventing the absorption of nutrients. If your dog has more than one of these symptoms - : diarrhoea, weight loss, depression, [..]

a parasite in the intestines of humans and animals causing sever diarrhea.

A water-dwelling, single-celled microorganism that causes diarrhea in many species, including humans.

Giardia lamblia: A microorganism (protozoa), sometimes found in drinking water, which may cause diarrhea, cramps, and illness (giardiasis). Giardia are commonly found in surface water sources like res [..]

are single celled parasites (protozoa) that live in the small intestine of animals or humans. They are passed through feces in the form of cysts. Water that is contaminated with fecal matter may conta [..]

A parasitic microorganism carried by animals in the form of a cyst. It is spread in animal feces and causes a disease commonly known as Beaver Fever.

A protozoa that can cause diarrhoea in animals and people.

A waterborne intestinal parasite that causes a disease called giardiasis in infected humans. Symptoms of the disease include diarrhea, cramps, and weight loss. Giardia contamination is found in most s [..]

A genus of flagellate protozoa some of which are parasitic in the intestinal tract of man and domestic animal; transmitted by ingestion of cysts in fecally contaminated water and food; interfere with the absorption of fats; boiling water inactivates them.  

A highly infectious parasitic micro organism, often found in sewage that can cause chronic and severe intestinal disease in both adults and children.

Giardia are a group of flagellate protozoans (single-celled, microscopic parasites) which grow in the intestines of infected humans or animals. Giardia cause diarrhoeal disease in humans. The disease [..]