Influenza Pandemics Occur Cyclically Because

question 47

Multiple Choice

Influenza pandemics occur cyclically because

• A) less than 100% of the population is immunized.
• B) new strains emerge due to reassortment between bird, swine, and human variants.
• C) the vector is seasonal.
• D) there are environmental reservoirs that release the virus during particular seasons.

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Definitions:

Formal Operational Thinking

A stage in cognitive development, characterized by the ability to think abstractly, logically, and systematically.

Masculinization

The process by which an organism develops male physical characteristics or displays male behaviors, often influenced by hormonal changes.

Feminization

The process of acquiring female characteristics or qualities, often referencing hormonal or social transitions.

Adulthood

The life stage characterized by full physical development and maturity, including the assumption of responsibilities and roles typical for grown individuals.