| rift valley fever | A febrile disease resembling dengue. It is caused by a mosquito-borne arbovirus. (12 Dec 1998) |
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| rift valley fever virus | A mosquito-borne species of the phlebovirus genus and member of the sandfly fever group viruses found in eastern, central, and southern africa, producing massive hepatitis, abortion, and death in sheep, goats, cattle, and other animals. It also has caused disease in humans. (12 Dec 1998) |
| Murray Valley encephalitis | A severe encephalitis with a high mortality rate occurring in the Murray Valley of Australia; the disease is most severe in children and is characterised by headache, fever, malaise, drowsiness or convulsions, and rigidity of the neck; extensive brain damage may result; it is caused by the Murray Valley encephalitis virus (genus Flavivirus). Synonym: Australian X disease, Australian X encephalitis. (05 Mar 2000) |
| Murray Valley encephalitis virus | A group B arbovirus of the genus Flavivirus that causes Murray Valley encephalitis; it is transmitted by Culex mosquitoes, and also infects birds and horses. Synonym: Australian X disease virus, MVE virus. (05 Mar 2000) |
| Murray Valley rash | 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) |
| San Joaquin Valley disease | A disease common in the San Joaquin Valley of California and certain additional areas in the southwestern U.S. As well as the Chaco region of Argentina, caused by inhalation of the arthroconidia of Coccidioides immitis; acute onset of symptoms resemble pneumonia or pulmonary tuberculosis, productive of sputum usually containing spores of the fungus, and accompanied by aches, malaise, severe headache, and occasionally an early erythematous or papular eruption; erythema multiforme or erythema nodosum may appear; the coccidioidin test is positive. Synonym: desert fever, San Joaquin fever, San Joaquin Valley disease, San Joaquin Valley fever, valley fever. (05 Mar 2000) |
| San Joaquin Valley fever | A disease common in the San Joaquin Valley of California and certain additional areas in the southwestern U.S. As well as the Chaco region of Argentina, caused by inhalation of the arthroconidia of Coccidioides immitis; acute onset of symptoms resemble pneumonia or pulmonary tuberculosis, productive of sputum usually containing spores of the fungus, and accompanied by aches, malaise, severe headache, and occasionally an early erythematous or papular eruption; erythema multiforme or erythema nodosum may appear; the coccidioidin test is positive. Synonym: desert fever, San Joaquin fever, San Joaquin Valley disease, San Joaquin Valley fever, valley fever. (05 Mar 2000) |
| encephalitis virus, murray valley | A species of flavivirus, one of the japanese encephalitis virus group (encephalitis viruses, japanese), found in Australia and new guinea. It causes a fulminating viraemia resembling japanese encephalitis. (12 Dec 1998) |
| Yangtze Valley fever | Schistosomiasis caused by schistosoma japonicum. It is endemic in the far east and affects the bowel, liver, and spleen. (12 Dec 1998) |