2773
METHODS : Fourteen patients chronically infected with hepatitis C virus were treated by pegylated interferon alpha 2a and ribavirin .
 Disease: chronically infected with hepatitis C virus; Chemical: pegylated interferon alpha 2a; Chemical: ribavirin
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
 Entities: chronically infected with hepatitis C virus, pegylated interferon alpha 2a, ribavirin 
Answer:
 Disease: chronically infected with hepatitis C virus; Chemical: pegylated interferon alpha 2a; Chemical: ribavirin