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Despite the anaemia , the number of splenic and bone marrow BFU - e in AZT treated mice increased up to five - fold over levels observed in infected untreated animals after 15 d of treatment .
 Disease: anaemia; Chemical: AZT
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:
 Disease: anaemia; Chemical: AZT