4692
According to a new rubella case definition , introduced in 2009 , 7 ( 0 . 1 % ) cases were classified as confirmed cases , 30 ( 0 . 4 % ) as probable .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Anatomy 
Text: {0} 
Answer:
 None