Section 19
Fungal and Protozoan Diseases of the Digestive System
By Boundless
![Thumbnail](../../../../../../figures.boundless-cdn.com/12525/square/ergot01.jpeg)
Ergot poisoning is caused by ingestion of the alkaloids produced by the ergot fungi.
![Thumbnail](../../../../../../figures.boundless-cdn.com/12530/square/00px-aspergillus-flavus-01.jpeg)
Aflatoxin poisoning is a result of ingestion of aflatoxins produced by Aspergillus that have contaminated a food source.
![Thumbnail](../../../../../../figures.boundless-cdn.com/12543/square/-infected-gerbil-intestine.jpeg)
Giardiasis, sometimes referred to as beaver fever, is caused by the protozoan Giardia lamblia and results in diarrheal illness.
![Thumbnail](../../../../../../figures.boundless-cdn.com/12544/square/457px-cryptosporidiosis-01.jpg)
Cryptosporidiosis is a type of parasitic disease caused by Cryptosporidium that infects the gastrointestinal system.
![Thumbnail](../../../../../../figures.boundless-cdn.com/30390/square/cyclospora-lifecycle.jpg)
Cyclospora diarrheal infection is commonly referred to as traveler's diarrhea and is caused by the parasite Cyclospora cayetanensis.
![Thumbnail](../../../../../../figures.boundless-cdn.com/12738/raw/-histolytica-life-cycle-en.jpg)
Amoebic dysentery is caused by the parasite Entamoeba histolytica and infected individuals suffer from severe diarrhea, cramps, and fever.
![Thumbnail](../../../../../../figures.boundless-cdn.com/12739/square/-legionella-pneumophila-01.jpeg)
Legionellosis is most commonly caused by the Gram-negative bacteria Legionella pneumophila which is an aquatic organism.