10965
( GUT ) Sera of 30 montoux negative healthy adults ( age / sex matched ) were taken as control by detecting IgG anti bodies to A60 antigen .
 IgG anti bodies, A60 antigen
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 IgG anti bodies, A60 antigen