With Respect to Orthomyxoviruses,changes in Antigenicity Usually Occur as a Result

question 45

Multiple Choice

With respect to orthomyxoviruses,changes in antigenicity usually occur as a result of

• A)antigenic drift.
• B)antigenic shift.
• C)frameshift mutations.
• D)both antigenic drift and antigenic shift.
• E)both antigenic drift and frameshift mutations.

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