334957
These researchers had previously published their investigations of an apparent 1984 outbreak of mononucleosis - like symptoms in Lake Tahoe , Nevada , in the United States , where they found no strong evidence of a connection between Epstein-Barr virus and the symptoms .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities:  
Answer:
 None