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Definition of Rift Valley fever
1. Noun. An infection common in Africa caused by a bunyavirus; transmitted by mosquitoes or by handling infected animals.
Generic synonyms: Haemorrhagic Fever, Hemorrhagic Fever, Vhf, Viral Haemorrhagic Fever, Viral Hemorrhagic Fever
Medical Definition of Rift Valley fever
1. A febrile disease resembling dengue. It is caused by a mosquito-borne arbovirus. (12 Dec 1998)