1755
The identified isolates of CSF ( 20 of 29 ) were : ECHO 30 ( 9 ) , ECHO 11 ( 7 ) , ECHO 9 ( 3 ) and ECHO 7 ( 1 ) .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 None