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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] Symptoms may include lethargy, loss of weight, colonic ulcerations, abdominal pain, diarrhea, or bloody diarrhea.
Clockwise from top right: Amoeba proteus, Actinophrys sol, Acanthamoeba sp., Nuclearia thermophila., Euglypha acanthophora, neutrophil ingesting bacteria. An amoeba (/ ə ˈ m iː b ə /; less commonly spelled ameba or amœba; pl.: amoebas (less commonly, amebas) or amoebae (amebae) / ə ˈ m iː b i /), [1] often called an amoeboid, is a type of cell or unicellular organism with the ability ...
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Amoebiasis is caused by the ingestion of food or water contaminated with feces or other bodily wastes of an infected person, which contain cysts, the dormant form of the microbe. These cysts on reaching the terminal ileum region of the gastrointestinal tract give rise to a mass of proliferating cells, the trophozoite form of the parasite, by ...
Anemia is a deficiency in the size or number of red blood cells or in the amount of hemoglobin they contain. [1] This deficiency limits the exchange of O 2 and CO 2 between the blood and the tissue cells. [1] Globally, young children, women, and older adults are at the highest risk of developing anemia. [1]
It most usually occurs in postmenopausal women. Vitamin B12 deficiency anemia: E53.8: 13905: Vitamin B12 deficiency anemia occurs when a "lower-than-normal" amount of the vitamin B12 is available within the body, leading to a decreased production of healthy red blood cells. [7] Vitamin B12 deficiency anemia due to intrinsic factor deficiency: D51.0
Nearly half of all anemia cases are due to iron deficiency as it is the most common nutritional disorder. [4] Although it is a common nutritional disorder, most causes of iron-deficiency anemia (IDA) are due to blood loss. [4] It occurs most commonly among children and females who are menstruating but can happen to any individual of any age. [3]
Insufficient data exists, but Shigella is estimated to have caused the death of 34,000 children under the age of five in 2013, and 40,000 deaths in people over five years of age. [25] Amoebiasis infects over 50 million people each year, of whom 50,000 die (one per thousand).