(C) Cryptosporidium parvum (correct) vs (E) Giardia lamblia (incorrect)
There are three main protozoa that cause GI infections:
Giardia lamblia - which causes fatty, foul-smelling stools, is transmitted via cysts in water (usually unfiltered river or lake water), and on histology, shows a flagellated, pear-shaped trophozoite with two large, central nuclei
Entamoeba histolytica - which causes bloody diarrhea or dysentery, liver abscesses, RUQ pain, and presents with flask-shaped ulcers on colon biopsy
Cryptosporidium - which causes watery diarrhea in immunocompetent hosts and severe diarrhea in AIDS patients, transmits via oocysts in water, and is an AIDS-defining illness (happens at CD4+ < 100/mm3)
submitted by โshak360(19)
(C) Cryptosporidium parvum (correct) vs (E) Giardia lamblia (incorrect)
There are three main protozoa that cause GI infections: