14944
The influenza neuraminidase ( NA ) , a surface - glycoprotein enzyme involved in releasing the virus from the host cell , has been considered as an essential therapeutic target for treatment and prophylaxis of influenza infection .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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