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We describe three HEXA mutations associated with infantile Tay - Sachs disease ( TSD ) in three unrelated nonconsanguineous Chinese families .
 Disease: Tay - Sachs disease; Disease: TSD
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Disease 
Text: {0} 
 Entities: Tay - Sachs disease, TSD 
Answer:
 Disease: Tay - Sachs disease; Disease: TSD