Which of the Following Is the Primary Reason That Live

question 12

Multiple Choice

Which of the following is the primary reason that live attenuated vaccines so difficult to develop?

• A) Viruses do not mutate very quickly.
• B) Viruses replicate very quickly.
• C) The mutations that determine attenuation can not be predicted.
• D) Not all pathogenic viruses can be grown in culture.
• E) It is difficult to maintain the stability of attenuated viruses.

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Definitions:

Ratio

A mathematical term describing the quantitative relation between two amounts, showing the number of times one value contains or is contained within the other.

Equivalent Ratio

A proportion between two sets of quantities indicating their equality in value or function.

Smallest Term

In mathematics, it refers to the term in an expression, sequence, or series that has the smallest value.

Equivalent Ratio

A proportional relationship between two numbers or quantities, indicating how many times the first number contains the second.