| Norwalk virus | <virology> Unclassified single stranded RNA virus causing common acute infectious gastroenteritis. (18 Nov 1997) |
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| Norwalk agent | A strain of epidemic gastroenteritis virus that appears to be related to the calciviruses. Origin: Norwalk, Ohio, where first implicated in disease (05 Mar 2000) |
| gastroenteritis virus, murine | A species of the coronavirus genus causing hepatitis in mice. Four strains have been identified as mhv 1, mhv 2, mhv 3, and mhv 4 (also known as jhm, which is neurotropic and causes disseminated encephalomyelitis with demyelination as well as focal liver necrosis). (12 Dec 1998) |
| gastroenteritis virus, porcine transmissible | A species of coronavirus causing a fatal disease to pigs under 3 weeks old. (12 Dec 1998) |
| 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) |
| 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) |
| transmissible gastroenteritis virus of swine | A coronavirus that causes transmissible gastroenteritis of swine. Synonym: TGE virus. (05 Mar 2000) |
| 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) |
| acute infectious 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) |
| antibiotic induced gastroenteritis | <pathology> A condition where the normal intestinal bacteria (useful for digestion) are killed by the use of an antibiotic resulting in symptoms. (27 Sep 1997) |
| gastroenteritis | <gastroenterology, pathology> An acute inflammation of the lining of the stomach and intestines, characterised by anorexia, nausea, diarrhoea, abdominal pain and weakness, which has various causes, including food poisoning due to infection with such organisms as Escherichia coli, Staphylococcus aureus and Salmonella species, consumption of irritating food or drink or psychological factors such as anger, stress and fear. Synonym: enterogastritis. (18 Nov 1997) |
| gastroenteritis, transmissible, of swine | A condition of chronic gastroenteritis in adult pigs and fatal gastroenteritis in piglets caused by a coronavirus. (12 Dec 1998) |
| 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) |