Difference between revisions of "Shift"

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Latest revision as of 01:29, 4 November 2020

1. Shift is the process in which the existing H ( hemagglutinin) and N ( neuraminidase) are replaced by significantly different H and Ns.

Notes: These new H or H/N combinations are perceived by human immune systems as new, so most people do not have pre-existing antibody protection to these novel viruses. This is one of the reasons that pandemic viruses can have such a serve impact on the health of populations.





(Source: Business Continuity Management Institute - BCM Institute)