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Scientists used to believe that the prognosis was similar to Marburg multiple sclerosis , but now they know that patients can survive , or even have spontaneous remission and asymptomatic cases .
 person: Marburg
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 person: Marburg