什么是Murray Valley Encephalitis Virus？
Murray Valley Encephalitis Virus (MVE) fever is a generally mild, limited viral infection. In a small number of cases, the infection may cause encephalitis (swelling and inflammation of the brain).
如何获得Murray Valley Encephalitis Virus？
Murray Valley Encephalitis Virus is transmitted only by infected mosquitoes. The virus is not transmitted person to person.
易感性和抗性
All persons are susceptible. Recovery is generally universal and followed by long-lasting immunity. Adults living in areas where MVE is common are generally immune due to unapparent infections acquired in childhood. Second attacks do not occur.
症状是什么？
The majority of the infections do not cause any symptoms. Some infections (about 1 in 800 cases) may produce mild fever, headache, nausea and vomiting. In a small number of cases, the infection may cause inflammation of the brain (encephalitis) with high fever, severe headache, lethargy, drowsiness, altered mental state, tremors and sometimes convulsions. Up to 25 percent of the severe cases may die. Survivors may have permanent neurological impairment.
预防措施
避免被蚊子叮咬是预防这种感染的最佳方法。为减少暴露在蚊虫叮咬中的风险，请使用驱虫剂，在无法在经过筛查或装有空调的设施中睡觉的情况下，使用氯菊酯浸渍的蚊帐，并穿上防护服。
处理
There is no specific treatment for this self-limited disease other than therapy of symptoms and supportive treatment for severe cases of encephalitis.
它常见于哪里？
该病毒仅在澳大利亚北部和巴布亚新几内亚发现。
