20846
Furthermore , peritoneal leukocytes from BaV - injected MyD88 ( - / - ) mice did not induce COX - 2 or LTB4 protein expression and released low concentrations of PGE2 .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None