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单词 nipah virus
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Nipah virus


Nip·ah virus

N5126100 (nĭp′ə)n. A paramyxovirus that is transmitted to humans from other mammals, especially pigs, and causes fever and myalgias that can progress to encephalitis.
[After Nipah, the village near Kuala Lumpur in Malaysia where the death of a farm worker led to the identification of the virus.]

Nipah virus


Nipah virus,

RNA virus of the genus Henipavirus, family Paramyxoviridae, that rarely infects humans but can cause deadly encephalitis. In humans, the virus typically incubates for 4 to 14 days before a person develops fever, headache, and other flulike symptoms. In some cases, respiratory illness, including pneumonia and acute respiratory distress, also develops. After 3 to 14 days the patient experiences drowsiness, dizziness, disorientation, mental confusion, and other symptoms of acute encephalitis; in the most severe cases the disease progresses to coma in 1 to 2 days. Depending on the outbreak, 40% to 75% of the persons known to be infected have died; some people who are infected, however, never show any significant symptoms. Patients are given supportive care; there is no treatment or vaccine for the virus. Some survivors of the disease may experience long-term neurological effects, including seizures and personality changes.

Carried by flying foxes (fruit batsfruit bat,
fruit-eating bat found in tropical regions of the Old World. It is relatively large and differs from other bats in the possession of an independent, clawed second digit; it also depends on sight rather than echo-location in maintaining orientation.
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) of the family Pteropodidae, especially those of the genus Pteropus, Nipah virus is known to infect both pigs and humans. The virus is typically transmitted to humans from something contaminated by the saliva, urine, or feces of flying foxes, or from contact with the secretions or excretions of an infected pig or human.

A relatively recently identified disease, Nipah virus was first diagnosed in 1988 in Malaysia, where pigs developed sometimes severe, transmissible respiratory infections when fruit trees, which attracted flying foxes, were planted among the pens on large pig farms; the virus then spread to other pigs and humans. Subsequent outbreaks have occurred in Bangladesh and India. Nipah virus is closely related to Hendra virus, which is also acquired from flying foxes and causes acute respiratory infections and encephalitis in horses and humans. Hendra virus disease, which typically has a mortality of greater than 50%, has only been reported in Australia.

Nipah virus


Nipah virus

a paramyxovirus that can cause fatal disease in humans, with features of encephalitis and meningitis; the virus spreads from swine to humans. [Nipah, Malaysia, where first human case detected, 1999]

Nipah virus

(nĭp′ə)n. A paramyxovirus that is transmitted to humans from other mammals, especially pigs, and causes fever and myalgias that can progress to encephalitis.

Ni·pah vi·rus

(nē'pă vī'rŭs) A paramyxovirus that can cause fatal disease in humans, with features of encephalitis and meningitis; the virus spreads from swine to humans. [Nipah, Malaysia, where first human case detected, 1999]

Nipah,

village in Malaysia where the first human case was detected in 1999. Nipah virus - a paramyxovirus with features of encephalitis and meningitis; spread from swine to humans.
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更新时间:2024/11/14 2:47:08