An Example of a Pathogen That Undergoes Rapid Changes Resulting

question 43

Multiple Choice

An example of a pathogen that undergoes rapid changes resulting in antigenic variation is

• A) the influenza virus, which expresses alternative envelope proteins.
• B) the strep bacteria, which can be communicated from patient to patient with high efficiency.
• C) human papilloma virus, which can remain latent for several years.
• D) the causative agent of the autoimmune disease known as rheumatoid arthritis.
• E) multiple sclerosis, which attacks the myelinated cells of the nervous system.

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Definitions:

Reapply

The action of applying a previous action or setting again in order to ensure current data or content conforms to a specific standard or format.

Filter

A tool in data processing and analysis that allows for the narrowing down of data sets by specifying criteria to display only the data that meet those criteria.

LOCATE

A command or function in programming and software applications that is used to find and identify the position of a specified piece of data within a file or database.

LOOKUP

A function used in spreadsheet programs that searches one or more rows or columns for a specified value and returns a corresponding value from a different row or column in the same range.