| parainfluenza virus | <virology> Species of the Paramyxoviridae, there are four types. Type 1 is also called Sendai virus or Haemagglutinating virus of Japan (HVJ) and the inactivated form is used to bring about cell fusion. Types 2-4 cause mild respiratory infections in humans. (18 Nov 1997) |
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| Rauscher's virus | An RNA retrovirus associated with leukaemia in rodents; similar to Friend virus. Synonym: Rauscher's virus. (05 Mar 2000) |
| parainfluenza virus 1, human | The type species of paramyxovirus also called haemadsorption virus 2 (ha2), which causes laryngotracheitis in humans, especially children. (12 Dec 1998) |
| rauscher virus | A murine leukaemia virus associated with mouse tumours similar to those caused by the friend virus. (12 Dec 1998) |
| parainfluenza virus 2, human | A species of rubulavirus associated particularly with acute laryngotracheitis (croup) in children aged 6 months to 3 years. (12 Dec 1998) |
| parainfluenza virus 3, human | A species of paramyxovirus frequently isolated from small children with pharyngitis, bronchitis, and pneumonia. (12 Dec 1998) |
| Venezuelan equine encephalomyelitis virus | A group A arbovirus of the genus Alphavirus, family Togaviridae, occurring in Venezuela and several other South American countries, in Panama and Trinidad, and occasionally the United States causing Venezuelan equine encephalomyelitis in horses and humans; it seems to be more viscerotropic than neurotropic; the virus is transmitted by Culex mosquitoes. Synonym: VEE virus. (05 Mar 2000) |
| Marburg virus | <organism, virology> A filovirus that causes Marburg disease, a severe haemorrhagic fever developed in many people who work with African green monkeys. (18 Nov 1997) |
| marburg virus disease | An RNA virus infection of rhesus, vervet, and squirrel monkeys transmissible to man. (12 Dec 1998) |
| Marek's disease virus | The herpesvirus that causes avian lymphomatosis (Marek's disease); is distinct from those causing other forms of leukosis. Synonym: avian lymphomatosis virus, fowl neurolymphomatosis virus, Marek's disease virus. (05 Mar 2000) |
| paravaccinia virus | A species of parapoxvirus causing a pox-like disease on udders of cows that may spread to milkers. (12 Dec 1998) |
| marmoset virus | A herpesvirus obtained repeatedly from throat swabs and tissues of New World monkeys. (05 Mar 2000) |
| German measles 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) |
| Germiston virus | A virus in the genus Bunyavirus, family Bunyaviridae (05 Mar 2000) |
| masked virus | A virus ordinarily occurring in the host in a noninfective state, but which may be activated and demonstrated by special procedures such as blind passage in experimental animals. (05 Mar 2000) |