Gradual Change in an Influenza Strain's Antigens by Point Mutation

question 69

Multiple Choice

Gradual change in an influenza strain's antigens by point mutation is _________.

• A) caused by antigenic drift
• B) caused by antigenic shift
• C) generally responsible for annual seasonal variation in influenza
• D) generally responsible for pandemic strains of influenza
• E) both caused by antigenic drift and generally responsible for annual seasonal variation in influenza

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Definitions:

Transferred Out

This term is used in accounting to describe costs or goods that are moved from one production process or department to another.

Materials

Raw substances used in the manufacturing process to create a finished product.

Equivalent Unit

A concept used in cost accounting to convert partially completed goods into a number of completed units for accounting purposes, considering the degree of completion.

First Processing Department

The initial stage in a manufacturing process where raw materials are first transformed into work-in-process.