| Rous sarcoma virus | <virology> The virus responsible for the classic first cell free transmission of a solid tumour, the chicken sarcoma, first reported by Rous in 1911. An avian C type oncorna virus, original source of the src oncogene. (18 Nov 1997) |
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| Rous sarcoma virus protease | <enzyme> Has been sequenced; crystallographic structure has been determined Registry number: EC 3.4.23.- Synonym: protease, rous sarcoma virus, rous sarcoma virus aspartic protease (26 Jun 1999) |
| Rs virus | <virology> This RNA virus is a member of the Paramyxoviridae family and is a major pathogen in the upper and lower respiratory tract in both infants and younger children. Respiratory syncytial virus manifestations include bronchiolitis, pneumonia and croup. Acronym: RSV (27 Sep 1997) |
| Rubarth's disease virus | A virus causing infectious canine hepatitis in dogs. Synonym: fox encephalitis virus, Rubarth's disease virus. (05 Mar 2000) |
| rubella virus | The type (and only) species of rubivirus causing acute infection in humans, primarily children and young adults. Humans are the only natural host. A live, attenuated vaccine is available for prophylaxis. (12 Dec 1998) |
| rubella virus vaccine | A live virus vaccine prepared from duck embryo or human diploid cell culture infected with rubella virus; administered as a single subcutaneous injection. See: measles, mumps, and rubella vaccine. (05 Mar 2000) |
| rubeola virus | <virology> Paramyxovirus that causes the childhood disease measles and is responsible for subacute sclerosing panencephalitis. (18 Nov 1997) |
| Russian autumn encephalitis virus | A virus of the genus Flavivirus (group B arbovirus) occurring particularly in Japan but probably widespread throughout Southeast Asia; the virus is normally present in humans, especially in children, as an inapparent infection, but may cause febrile response and sometimes encephalitis; it may cause encephalitis in horses and abortion in pigs; wild birds are probably the natural hosts and culicine mosquitoes the vectors. Synonym: Russian autumn encephalitis virus. (05 Mar 2000) |
| Russian spring-summer encephalitis virus | An arbovirus of the genus Flavivirus that occurs in Central Europe and the USSR in two subtypes, causing two forms of encephalitis in humans: tick-borne encephalitis (Central European subtype) and tick-borne encephalitis (Eastern subtype); the vectors are ticks of the genus Ixodes. Synonym: Russian spring-summer encephalitis virus, tick-borne virus. (05 Mar 2000) |
| milker's nodule virus | A virus in the family Poxviridae. (05 Mar 2000) |
| mink enteritis virus | A parvovirus that causes enteritis of mink. (05 Mar 2000) |
| mm virus | A strain of encephalomyocarditis virus, a species of cardiovirus, causing neurological disease in the mouse. (12 Dec 1998) |
| Mokola virus | A rabies related virus of the genus Lyssavirus, family Rhabdoviridae, first isolated from shrews (Crocidura spp.) in Nigeria, which has caused fatal neurological disease in man and cats in Africa. (05 Mar 2000) |
| pichinde virus | A species of arenavirus, one of the tacaribe complex viruses, causing a fatal infection in the cricetine rodent oryzomys albigularis. Asymptomatic laboratory infection in humans has been reported. (12 Dec 1998) |
| molluscum contagiosum virus | A species of molluscipoxvirus causing skin lesions in humans. It is transmitted by direct contact or from non-living reservoirs (fomites), such as books or clothing. (12 Dec 1998) |