| Japanese river fever | See Typhus, scrub. (12 Dec 1998) |
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| Ross River fever | A mild febrile illness of humans in Australia characterised by polyarthralgia and rash, caused by the Ross River virus, a member of the family Togaviridae, and transmitted by mosquitoes. Synonym: epidemic exanthema, Murray Valley rash, Ross River fever. (05 Mar 2000) |
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| river | 1. <ecology> A large stream of water flowing in a bed or channel and emptying into the ocean, a sea, a lake, or another stream; a stream larger than a rivulet or brook. "Transparent and sparkling rivers, from which it is delightful to drink as they flow." (Macaulay) 2. A large stream; copious flow; abundance; as, rivers of blood; rivers of oil. River chub, any one of numerous fresh water tortoises inhabiting rivers, especially those of the genus Trionyx and allied genera. See Trionyx. Origin: F. Rivere a river, LL. Riparia river, bank of a river, fr. L. Riparius belonging to a bank or shore, fr. Ripa a bank or shore; of uncertain origin. Cf. Arrive, Riparian. Source: Websters Dictionary (01 Mar 1998) |
| river blindness | Ocular complications, such as keratitis, iridocyclitis, or retrobulbar neuritis, caused by the microfilariae of Onchocerca volvulus. Synonym: river blindness. (05 Mar 2000) |
| river-type fish | <marine biology> Anadromous fish that rear for a year or more in rivers. (23 Aug 1998) |
| ross river virus | A species of alphavirus associated with epidemic exanthema and polyarthritis in Australia. (12 Dec 1998) |
| encephalitis, japanese | A form of epidemic encephalitis occurring in japan and other pacific islands, china, manchuria, the former ussr, and probably much of the far east. It may occur as a symptomless, subclinical infection, or as an acute meningoencephalomyelitis with cortical damage and cord lesions resembling those of poliomyelitis. (12 Dec 1998) |
| encephalitis viruses, japanese | A subgroup of the genus flavivirus which comprises a number of viral species that are the aetiologic agents of human encephalitis in many different geographical regions. These include japanese encephalitis virus (encephalitis virus, japanese), st. Louis encephalitis virus (encephalitis virus, st. Louis), kunjin virus, murray valley encephalitis virus (encephalitis virus, murray valley), and west nile virus. (12 Dec 1998) |
| encephalitis virus, japanese | A species of flavivirus, one of the japanese encephalitis virus group (encephalitis viruses, japanese), which is the aetiological agent of japanese encephalitis found in asia, southeast asia, and the indian subcontinent. (12 Dec 1998) |
| japanese b encephalitis | <pathology> An epidemic viral encephalitis that strikes populations in Japan and other East Asian countries, typically in summer months. Symptoms canresemble poliomyelitis, but the disease can also be virtually symptomless. (09 Oct 1997) |
| Japanese B 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) |
| Japanese dysentery | Infection with Shigella dysenteriae, S. Flexneri, or other organisms. Synonym: Japanese dysentery. (05 Mar 2000) |
| absorption fever | An elevation of temperature often occurring, without other untoward symptoms, shortly after childbirth, assumed to be due to absorption of uterine discharges through abrasions of the vaginal wall. (05 Mar 2000) |
| acclimating fever | Elevated temperature with malaise that occurs upon working in a very hot environment. (05 Mar 2000) |
| aden fever | <virology> A tropical disease caused by dengue virus (Arbovirus), that is transmitted by the bite of an infected mosquito of the genus Aedes). Four severity grades of the illness are seen: Grade I: fever and constitutional symptoms. Grade II: grade I plus spontaneous bleeding of skin, gums or gastrointestinal tract. Grade III: grade II plus agitation and circulatory failure. Grade IV: profound shock. Grade I infection is seen most frequently in world travelers, where it is usually self-limited and rarely fatal. The other grades are referred to as dengue haemorrhagic fever and are often fatal. Dengue haemorrhagic fever appears to be an infection by one of the other dengue viruses. Prior immunity to a different dengue virus type appears to be important in the development of the more serious haemorrhagic form. Vaccines are available. Protection from mosquitoes is an important preventive measure. (15 Jan 1998) |
| aestivoautumnal fever | <infectious disease> A tropical parasitic disease caused by one of the genus Plasmodium and carried by infected mosquitoes of the genus Anopheles. This parasite uses red blood cells to complete its reproductive cycle. Common symptoms of an attack include high fever, chills, sweats and body aches. (27 Sep 1997) |