What Is the Primary Determinant of Virulence in Streptococcus Pneumoniae

question 13

Multiple Choice

What is the primary determinant of virulence in Streptococcus pneumoniae?

• A) the presence of a particular Lancefield antigen
• B) the production of pneumolysin
• C) the presence of a polysaccharide capsule
• D) the ability to lyse red blood cells
• E) strain-specific teichoic acids in its cell wall

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Definitions:

United States

A country located primarily in North America, comprised of 50 states, a federal district, five major self-governing territories, and various possessions.

Mania

A mental state characterized by extremely elevated mood, energy, and activity levels, often associated with bipolar disorder.

Neurotransmitter

Chemicals in the nervous system that transmit signals between neurons or from neurons to muscles.

Acetylcholine

A neurotransmitter that has been linked to depression and dementia.