How Does Antigenic Drift Explain the Need to Get a New

question 49

Multiple Choice

How does antigenic drift explain the need to get a new flu vaccine every year? (Select all that apply)

• A) antigenic drift is the process in which the primary viral antigens like H and N proteins slowly accumulate mutations
• B) H and N mutations become so numerous that the resulting proteins cannot be recognized by previously produced antibodies
• C) the current vaccine which was developed using the last year's viruses stimulates production of IgG antibodies that will recognize most H and N proteins but a booster is needed to keep IgG levels elevated
• D) the current vaccine which was developed using the last year's viruses stimulates production of specific IgG antibodies that will no longer recognize the H and N proteins on the virus

---

Definitions:

Ethnocentrism

The belief in the inherent superiority of one's own ethnic group or culture, often accompanied by a corresponding disdain for other groups.

Scarce Resources

A condition where the demand for resources exceeds the supply, leading to competition and conflict.

Sherif

Refers to Muzafer Sherif, a psychologist known for his work on social norms, and the realistic conflict theory.

Social Identities

The aspects of an individual's self-concept derived from perceived membership in social groups such as nationality, ethnicity, religion, or gender.