2734
National project on the prevention of mother - to - infant infection by hepatitis B virus in Japan .
 Disease: infection by hepatitis B virus
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: infection by hepatitis B virus 
Answer:
 Disease: infection by hepatitis B virus