What Would Be a Primary Advantage of Using an Attenuated

question 8

Multiple Choice

What would be a primary advantage of using an attenuated agent rather than just an antigen from that agent for a vaccine?

• A)This is actually a disadvantage-it's much more dangerous to use an attenuated agent over a subunit (single antigen)vaccine due to the possibility of reversion of the microbe to a pathogenic state.
• B)An attenuated agent strongly stimulates ONLY the antibody production (humoral response)of the adaptive immune system.This provides the best and strongest long-term protection.
• C)An attenuated agent strongly stimulates ONLY the cytotoxic T cell (CTL,cell-mediated)side of the adaptive immune system.This provides the best and strongest long-term protection.
• D)An attenuated agent strongly stimulates both the humoral (antibody)AND cell-mediated (T cell)portions of the adaptive immune response,giving the best comprehensive long-term protection available.

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Definitions:

Mucosa

The moist tissue layer lining some organs and body cavities, including the nose, mouth, lungs, and digestive tract.

Small Intestine

A part of the gastrointestinal tract between the stomach and large intestine that digests and absorbs nutrients from food.

Pylorus

The region of the stomach that connects to the duodenum, responsible for the regulated passage of digested food.

Stomach

A muscular organ in the gastrointestinal tract that breaks down food through the action of acids and enzymes.