11922
Immunological and biochemical characterization of streptococcal pyrogenic exotoxins I and J ( SPE - I and SPE - J ) from Streptococcus pyogenes .
 streptococcal pyrogenic exotoxins I and J, SPE - I, SPE - J
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 streptococcal pyrogenic exotoxins I and J, SPE - I, SPE - J