| rice-field fever | A febrile illness affecting workers in rice fields, reported in Po valley in Italy and in Sumatra, caused by infection with a species of Leptospira. (05 Mar 2000) |
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| rift valley fever | A febrile disease resembling dengue. It is caused by a mosquito-borne arbovirus. (12 Dec 1998) |
| metal fume fever | An occupational disease, characterised by malaria-like symptoms, due to inhalation of particles and fumes of metallic oxides. Fumes are formed by evaporation at very high temperature and condensation in air into fine particles. Synonym: brass founder's ague, foundryman's fever, metal fume fever, zinc fume fever. (05 Mar 2000) |
| Persian relapsing fever | A tick-borne relapsing fever, occurring in the Middle East, caused by Borrelia persica and transmitted by Ornithodoros tholozani and possibly by Ornithodoros lahorensis. Synonym: mianeh disease, mianeh fever. (05 Mar 2000) |
| petechial fever | idiopathic thrombocytopenic purpura |
| rocky mountain spotted fever | <infectious disease> An acute febrile (feverish) disease initially recognised in the Rocky Mountain states, caused by Rickettsia rickettsii transmitted by hard-shelled (ixodid) ticks. Occurs only in the Western Hemisphere. The disease is characterised by sudden onset of headache, chills and fever which can persist for 2-3 weeks, muscle pain. A characteristic rash appears on the extremities and trunk about the 4th day of illness. The rickettsiae grow within damaged cells lining blood vessels which may become blocked by clots. Blood vessel inflammation (vasculitis) is widespread Early recognition of the condition and prompt antibiotic treatment is important in reducing mortality. Synonym: spotted fever, tick fever, and tick typhus. (25 Jun 1999) |
| Rocky Mountain spotted fever vaccine | Suspension of inactivated Rickettsia rickettsii prepared by growing the rickettsiae in the embryonate yolk sac of fowl eggs. (05 Mar 2000) |
| Roman fever | Malignant tertian, falciparum, or aestivoautumnal fever, formerly prevalent in the Roman Campagna and in the city of Rome; caused by Plasmodium falciparum. (05 Mar 2000) |
| meuse fever | The area around the Meuse River was one of the great battlegrounds of world war i during which this louse-borne disease was first recognised in the trenches (called trench fever), again a major problem in the military in world war II, seen endemically in mexico, n. Africa, e, europe, and elsewhere. The cause, rochalimaea quintana, is an unusual rickettsia that multiplies in the gut of the body louse. Transmission to people can occur by rubbing infected louse feces into abraded (scuffed) skin or conjunctiva (whites of the eyes). Onset of symptoms is sudden, with high fever, headache, back and leg pain and a fleeting rash. Recovery takes a month or more. Relapses are common. Also called wolhynia fever, shin bone fever, quintan fever, five-day fever, his' disease, his-werner disease, werner-his disease. (12 Dec 1998) |
| mexican spotted fever | <infectious disease> An acute tick-borne illness caused by the bacteria Rickettsia rickettsii. The disease is characterised by sudden onset of headache, chills and fever which can persist for 2-3 weeks. A characteristic rash appears on the extremities and trunk about the 4th day of illness. (21 Jun 2000) |
| mianeh fever | A tick-borne relapsing fever, occurring in the Middle East, caused by Borrelia persica and transmitted by Ornithodoros tholozani and possibly by Ornithodoros lahorensis. Synonym: mianeh disease, mianeh fever. (05 Mar 2000) |
| pharyngoconjunctival fever | A disease characterised by fever, pharyngitis, and conjunctivitis, and caused by adenoviruses, often type 3 but occasionally other types. (05 Mar 2000) |
| 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) |
| Philippine haemorrhagic fever | Severe arbovirus infection with haemorrhagic manifestations, considerable mortality, probably due to mosquito borne dengue virus; seen in tropical and subtropical urban areas of southeast Asia, South Pacific, Australia, Central and South America, and the Caribbean islands. (05 Mar 2000) |
| phlebotomus fever | Influenza-like febrile viral disease caused by several members of the bunyaviridae family and transmitted mostly by the bloodsucking sandfly phlebotomus papatasii. (12 Dec 1998) |