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Major groups of parasites include protozoans (organisms having only one cell) and parasitic worms (helminths). Of these, protozoans, including cryptosporidium, microsporidia, and isospora, are most common in HIV-infected persons. Each of these parasites can infect the digestive tract, and sometimes two or more can cause infection at the same time.
Gastroenteritis is usually caused by viruses; [4] however, gut bacteria, parasites, and fungi can also cause gastroenteritis. [2] [4] In children, rotavirus is the most common cause of severe disease. [10] In adults, norovirus and Campylobacter are common causes.
Antibiotics will not be effective if the cause of gastroenteritis is a viral infection. Doctors usually do not recommend antidiarrheal medications (e.g., Loperamide) for gastroenteritis because they tend to prolong infection, especially in children. [2] Parasitic infections are difficult to treat. A number of drugs are available once the ...
“Norovirus is a highly contagious virus that causes inflammation of the stomach and intestines, leading to a condition called acute gastroenteritis," says Erica Chung, MD, assistant professor of ...
The virus causes acute gastroenteritis — an inflammation of the stomach or intestines — which causes the diarrhea, vomiting, and stomach pains. Although most people recover in three days or ...
Noroviruses are a group of viruses that cause acute gastroenteritis, or an inflammation of the lining of the stomach and intestines, which leads to nausea, vomiting, diarrhea and stomach cramps ...
The cause of dysentery is usually the bacteria from genus Shigella, in which case it is known as shigellosis, or the amoeba Entamoeba histolytica; then it is called amoebiasis. [1] Other causes may include certain chemicals, other bacteria, other protozoa, or parasitic worms. [2] It may spread between people. [4]
Amoebiasis, or amoebic dysentery, is an infection of the intestines caused by a parasitic amoeba Entamoeba histolytica. [3] [4] Amoebiasis can be present with no, mild, or severe symptoms. [2]