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Cloning and expression of the Epstein-Barr virus -encoded dUTPase : patients with acute, reactivated or chronic virus infection develop antibodies against the enzyme .
 antibodies, enzyme, Epstein-Barr virus -encoded dUTPase
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 antibodies, enzyme, Epstein-Barr virus -encoded dUTPase