| gastroenteritis virus, porcine transmissible | A species of coronavirus causing a fatal disease to pigs under 3 weeks old. (12 Dec 1998) |
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| gastroenteritis virus type A | A RNA virus, about 27 nm in diameter, which has not been cultured in vitro; it is the cause of epidemic nonbacterial gastroenteritis; at least five antigenically distinct serotypes have been recognised, including the Norwalk agent. These viruses are probably classified with the Caliciviruses in the family Caliciviridae. Synonym: gastroenteritis virus type A. (05 Mar 2000) |
| gastroenteritis virus type B | <virology> Genus of the Reoviridae having a double layered capsid and 11 double stranded RNA molecules in the genome. They have a wheel like appearance in the electron microscope and cause acute diarrhoeal disease in their mammalian and avian hosts. Probably the most important cause of severe dehydrating diarrhoea in children under three years of age worldwide. Symptoms include nausea, vomiting, low-grade fever and diarrhoea. Aggressive fluid replacement is generally required. (27 Sep 1997) |
| viral gastroenteritis | <pathology> An inflammatory condition of the intestines that results from an infection with a virus. Rotavirus is a common cause. Abdominal pain, diarrhoea, nausea and vomiting are common symptoms. (27 Sep 1997) |
| porcine transmissible gastroenteritis | A rapidly spreading disease of swine, caused by a coronavirus (of the family Coronaviridae) and characterised by severe diarrhoea and vomiting; case fatality rate in pigs younger than 10 days is high; in older pigs it is low. Synonym: porcine transmissible gastroenteritis. (05 Mar 2000) |
| infantile gastroenteritis | An endemic viral gastroenteritis of young children (6 months to 12 years) that is especially widespread during winter, caused by strains of rotavirus; the incubation period is 2 to 4 days, with symptoms lasting 3 to 5 days, including abdominal pain, diarrhoea, fever, and vomiting. Synonym: infantile gastroenteritis. (05 Mar 2000) |
| infantile gastroenteritis virus | <virology> Genus of the Reoviridae having a double layered capsid and 11 double stranded RNA molecules in the genome. They have a wheel like appearance in the electron microscope and cause acute diarrhoeal disease in their mammalian and avian hosts. Probably the most important cause of severe dehydrating diarrhoea in children under three years of age worldwide. Symptoms include nausea, vomiting, low-grade fever and diarrhoea. Aggressive fluid replacement is generally required. (27 Sep 1997) |
| endemic nonbacterial infantile gastroenteritis | An endemic viral gastroenteritis of young children (6 months to 12 years) that is especially widespread during winter, caused by strains of rotavirus; the incubation period is 2 to 4 days, with symptoms lasting 3 to 5 days, including abdominal pain, diarrhoea, fever, and vomiting. Synonym: infantile gastroenteritis. (05 Mar 2000) |
| transmissible gastroenteritis of swine | A rapidly spreading disease of swine, caused by a coronavirus (of the family Coronaviridae) and characterised by severe diarrhoea and vomiting; case fatality rate in pigs younger than 10 days is high; in older pigs it is low. Synonym: porcine transmissible gastroenteritis. (05 Mar 2000) |
| transmissible gastroenteritis virus of swine | A coronavirus that causes transmissible gastroenteritis of swine. Synonym: TGE virus. (05 Mar 2000) |
| eosinophilic gastroenteritis | <radiology> Eosinophilic infiltration of mucosa, submucosa, and muscularis of small bowel with or without stomach, stomach (almost always limited to antrum): enlarged gastric rugae, cobblestone nodules, polyps (=mucosal type), rigid wall with narrowed antrum/pylorus, bulky inramural mass up to 9 cm (=muscular type), wet stomach, ulcers rare, may have ascites, small bowel (predominantly jejunum), thickening and distortion of folds (=mucosal type), effacement of mucosa and narrowing of lumen (=muscular type), prognosis: tendency to spontaneous remission, treatment: steroids; removal of sensitizing agent (12 Dec 1998) |
| epidemic gastroenteritis virus | A RNA virus, about 27 nm in diameter, which has not been cultured in vitro; it is the cause of epidemic nonbacterial gastroenteritis; at least five antigenically distinct serotypes have been recognised, including the Norwalk agent. These viruses are probably classified with the Caliciviruses in the family Caliciviridae. Synonym: gastroenteritis virus type A. (05 Mar 2000) |
| epidemic nonbacterial gastroenteritis | An epidemic, highly communicable but rather mild disease of sudden onset, caused by the epidemic gastroenteritis virus (especially Norwalk agent), with an incubation period of 16 to 48 hours and a duration of 1 to 2 days, which affects all age groups; infection is associated with some fever, abdominal cramps, nausea, vomiting, diarrhoea, and headache, one or another of which may be predominant. Synonym: acute infectious nonbacterial gastroenteritis. (05 Mar 2000) |