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Viruses cause about 70% of episodes of infectious diarrhea in the pediatric age group. [13] Rotavirus is a less common cause in adults due to acquired immunity. [27] Norovirus is the cause in about 18% of all cases. [28] Generally speaking, viral gastroenteritis accounts for 21–40% of the cases of infectious diarrhea in developed countries. [29]
Herpes esophagitis is a viral infection of the esophagus caused by Herpes simplex virus (HSV). While the disease most often occurs in immunocompromised patients, including post- chemotherapy , immunosuppression with organ transplants [ 1 ] and in AIDS , [ 2 ] herpes esophagitis can also occur in immunocompetent individuals.
Bacterial infections that cause bloody diarrhea are typically classified as being either invasive or toxogenic. Invasive species cause damage directly by invading into the mucosa. The toxogenic species do not invade, but cause cellular damage by secreting toxins, resulting in bloody diarrhea.
Infectious diarrhea resulted in about 0.7 million deaths in children under five years old in 2011 and 250 million lost school days. [ 64 ] [ 65 ] In the Americas, diarrheal disease accounts for a total of 10% of deaths among children aged 1–59 months while in South East Asia, it accounts for 31.3% of deaths. [ 66 ]
Infectious disease doctors break it down. Meet the experts: infectious disease expert Amesh A. Adalja, M.D., ... Norovirus is the leading cause of vomiting and diarrhea, and foodborne illness in ...
It may be caused by ulcers, tumors of the stomach or esophagus, varices, prolonged and vigorous retching, gastroenteritis, ingested blood (from bleeding in the mouth, nose, or throat), or certain drugs. [citation needed] Hematemesis is treated as a medical emergency, with treatments based on the amount of blood loss. Investigations include ...
Diarrhea or constipation. Nausea or vomiting. Gas. Rectal bleeding. Low blood pressure. Severe infection. Shock. Obstruction. Vomiting. Feelings of fullness or swelling in the belly. Loud sounds ...
After eating contaminated food, the first symptoms of infection can emerge anywhere from 1 to 10 days later, but usually after 3 to 4 days. [9] These early symptoms can include diarrhea (which is often bloody), stomach cramps, mild fever, [10] or vomiting that results in dehydration and reduced urine. [9]