21. During the fourth stage cell fusion becomes evident and HA neuraminidase and fusion factor begin to disappear. 22. Members of this family contain multiple BNR ( bacterial neuraminidase repeat ) repeats or Asp-boxes. 23. Antiviral agents that inhibit influenza viral neuraminidase activity are of major importance in the control of influenza. 24. Neuraminidase is the target of the neuraminidase inhibitor class of antiviral drugs, including oseltamivir and zanamivir.25. Neuraminidase is the target of the neuraminidase inhibitor class of antiviral drugs, including oseltamivir and zanamivir. 26. Skinner said anti-viral drugs targeting the neuraminidase enzyme are an interesting new approach to influenza control. 27. Neuraminidase is an enzyme involved in the release of antibodies, i . e . they are antigens.28. Accumulated antibodies to the neuraminidase or internal proteins may have resulted in much fewer casualties than most pandemics. 29. Among their many biological functions, these structures are substrates for neuraminidase enzymes which cleave neuraminic acid residues. 30. The vRNA and phospholipid membrane, acquiring hemagglutinin and neuraminidase with this membrane coat ( step 7 ).
