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The Type II C2 null allele ( C2Q0 ) is linked to two major histocompatibility haplotypes ( MHC ) that differ from the MHC of the more common Type I C2 deficiency .
 Disease: Type I C2 deficiency
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease 
Text: {0} 
Answer:
 Disease: Type I C2 deficiency