| REO virus | <virology> A genus of viruses (family Reoviridae) that are 75 to 80 nm in diameter, with distinct double layers of capsomeres, and have vertebrates as hosts; a causative relationship to illness has not been proven. They have been recovered from children with mild fever and sometimes diarrhoea, and from children with no apparent infection; from chimpanzees with coryza; monkeys and mice; and cattle faeces. There are three antigenically distinct human types related by a common complement-fixing antigen. (05 Mar 2000) Previous: rensselaerite, renunculus, R enzyme, reoperation, reostat, reotrope, ReoviridaeNext: REO virus, reovirus 3, reovirus-like agent, REP, repair, repair enzymeREO virus respiratory enteric orphan virus |
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| reoperation | <surgery> A repeat operation for the same condition in the same patient. It includes reoperation for reexamination, reoperation for disease progression or recurrence, or reoperation following operative failure. (25 Jun 1999) |
| reostat | <physics> A contrivance for adjusting or regulating the strength of electrical currents, operating usually by the intercalation of resistance which can be varied at will. Rheostat"ic. Origin: Gr. + standing still. Source: Websters Dictionary (01 Mar 1998) |
| reotrope | <physics> An instrument for reversing the direction of an electric current. Alternative forms: reotrope. Origin: Gr. To flow + to turn. Source: Websters Dictionary (01 Mar 1998) |
| Reoviridae | <virology> Class III viruses, with a segmented double stranded RNA genome, there are about 8-10 segments each coding for a different polypeptide and only one strand of the RNA (minus strand) acts as template for mRNA (plus strand). Icosahedral capsid and the virion includes all the enzymes needed to synthesise mRNA. The viruses originally included in this group do not seem to cause any disease in humans, though they have been isolated from the respiratory tract and gut of patients with a variety of diseases, the name is derived from Respiratory, Enteric, Orphan viruses. Several pathogenic viruses are now classed as reoviruses including orbivirus, a tick borne virus that causes Colorado tick fever and rotavirus. (25 Jun 1999) |
| Reovirus | <virology> A genus of viruses (family Reoviridae) that are 75 to 80 nm in diameter, with distinct double layers of capsomeres, and have vertebrates as hosts; a causative relationship to illness has not been proven. They have been recovered from children with mild fever and sometimes diarrhoea, and from children with no apparent infection; from chimpanzees with coryza; monkeys and mice; and cattle faeces. There are three antigenically distinct human types related by a common complement-fixing antigen. (05 Mar 2000) |
| reovirus 3 | <virology> A species of orthoreovirus and the suspected cause of biliary atresia and neonatal hepatitis in human infants. (25 Jun 1999) |
| reovirus-like agent | <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) |