equine encephalitis
| Noun | 1. | equine encephalitis - encephalitis caused by a virus that is transmitted by a mosquito from an infected horse |
| 单词 | equine encephalitis | |||
| 释义 | equine encephalitis
equine encephalitisequine encephalitis(ē`kwīn ĕnsĕf'əlī`tĭs), infectious disease of horses caused by any of several viruses, four of which—the Eastern, Western, Venezuelan, and St. Louis viruses—can also infect humans. The viruses, which begin their life cycles as parasites of wild birds, are transferred to horses, and from horses to humans, in the salivary glands of mosquitos. The symptoms of equine encephalitis include fever, drowsiness, and incoordination, often followed by paralysis and death. The mortality rate is 90%, usually within 2 to 3 days, in the most virulent, Eastern type; and as high as 50% in the Western type. The disease, for which no specific treatment is known, can be prevented by annual vaccination of horses. Equine encephalitis is a serious public-health problem in N South America. In 1991 the Eastern virus infected horses throughout much of the SE United States; five infections of humans occurred in Florida. In 1992 the virus was first identified in the Asian tiger mosquito, an aggressive feeder on both horses and humans, now found in some 20 states of the E United States.BibliographySee H.-J. Wintzer, Equine Diseases (1986). equine encephalitis[′ē‚kwīn en‚sef·ə′līd·əs]equine encephalitise·quine en·ceph·a·lo·my·e·li·tisequine encephalitisOne of a range of diseases of horses and humans, featuring inflammation of the brain, and caused by various strains of ARBOVIRUSES, occurring in the Americas as several types, especially Eastern, Western, Californian and Venezuelan. Epidemics of encephalitis are often preceded by death of horses. Most cases are acquired by mosquito bites. There is no specific treatment and cases often end fatally or with severe permanent brain damage.equine encephalitis
Synonyms for equine encephalitis
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