Encephalitis lethargica: A rare brain disease characterized by fever, headache, lethargy and reduced physical and mental responses. The disease occurred as an epidemic in the 1920's but now occurs sporadically - the exact cause is still not known. More detailed information about the symptoms, causes, and treatments of Encephalitis lethargica is available below.
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Prognosis for Encephalitis lethargica: variable
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An encephalitis that was epidemic between 1915 and 1926; symptoms include paralysis of the extrinsic eye muscle and extreme muscular weakness - (Source - WordNet 2.1)
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