Select the Statement That Best Explains Why It Has Not

question 2

Multiple Choice

Select the statement that best explains why it has not been possible to develop a vaccine for HIV.

• A) HIV rapidly replicates and undergoes mutations so frequently that even small changes in its proteins make the virus unrecognizable to host immune cells.
• B) The current understanding of the metabolic process and identification of the subtypes of HIV is not yet enough to create a vaccine that would protect against all of the subtypes of HIV.
• C) The macrophages, dendritic cells, and T and B cells interact with the protein components of HIV; therefore, no vaccine can be developed until a solution to the interaction between the cells of the body and the protein components is found.
• D) None of these are correct.

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Definitions:

Positive Economics

The branch of economics that focuses on factual and cause-and-effect relationships, avoiding value judgments about what ought to be.

Prescriptions

Authorized orders for medication given by a licensed healthcare professional, allowing a patient to be provided medicine.

Factor Of Production

Resources used in the creation of goods and services, traditionally categorized into land, labor, capital, and sometimes entrepreneurship.

Fertilizer

A chemical or natural substance added to soil or land to increase its fertility and enhance plant growth.