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Amoebiasis is present all over the world, [6] though most cases occur in the developing world. [7] About 480 million people are currently infected with about 40 million new cases per year with significant symptoms. [2] [8] This results in the death of between 40,000–100,000 people a year. [4] The first case of amoebiasis was documented in 1875.
[1] [10] Other symptoms may include fever, abdominal pain, and a feeling of incomplete defecation. [2] [6] [11] Complications may include dehydration. [3] 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]
These symptoms negatively impact nutritional status, including decreased absorption of micronutrients, loss of appetite, weight loss, and intestinal blood loss that can often result in anemia. It may also cause physical and mental disabilities, delayed growth in children, and skin irritation around the anus and vulva. [2]
Diarrhea may be intermittent and may not be present in all cases. It is often chronic, lasting over two weeks. The degree of symptoms may vary from asymptomatic to severe, [2] and can include weight loss, vomiting, fever, and involvement of other digestive organs. Symptoms may be more severe in children. Additional symptoms reported have ...
Intestinal infectious diseases include a large number of infections of the bowels, including cholera, typhoid fever, paratyphoid fever, other types of salmonella infections, shigellosis, botulism, gastroenteritis, and amoebiasis among others. [1] Typhoid and paratyphoid resulted in 221,000 deaths in 2013 down from 259,000 deaths in 1990. [2]
Amoebiasis, also known as amebiasis or entamoebiasis, [31] [32] is an infection caused by any of the amoebozoans of the Entamoeba group. Symptoms are most common upon infection by Entamoeba histolytica. Amoebiasis can present with no, mild, or severe symptoms.
Entamoeba coli is a non-pathogenic species of Entamoeba that frequently exists as a commensal parasite in the human gastrointestinal tract. E. coli (not to be confused with the bacterium Escherichia coli) is important in medicine because it can be confused during microscopic examination of stained stool specimens with the pathogenic Entamoeba histolytica. [1]
The two most common manifestations of E histolytica include colitis (bloody stool with mucus, abdominal pain, and/or diarrhea), and discovery of a liver abscess on imaging. [2] Liver abscesses commonly present as right upper quadrant abdominal pain and fever, with worsening features associated with abscess rupture.