4549
Lamivudine is a novel 2 ' , 3 ' - dideoxy cytosine analogue that has potent inhibitory effects on hepatitis B virus replication in vitro and in vivo .
 Chemical: Lamivudine; Chemical: 2 ' , 3 ' - dideoxy cytosine; Disease: hepatitis B
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Chemical: Lamivudine; Chemical: 2 ' , 3 ' - dideoxy cytosine; Disease: hepatitis B