Asked by Kaylee Bernal on Jul 28, 2024
Verified
When small mutations gradually change the surface antigens of a virus so that antibodies to the original virus become less effective, this is known as
A) an arms race.
B) antigenic escape.
C) antibody migration.
D) antigenic drift.
E) spike reassortment.
Antigenic Drift
A mechanism of variation in viruses that causes small changes in the virus particles over time, leading to new strains that may escape immune recognition.
Surface Antigens
Molecules present on the cell surface that can trigger an immune response, used by the body to identify foreign substances.
Antibodies
Proteins produced by the immune system in response to foreign substances (antigens), which can neutralize or help destroy antigens.
- Gain insight into the fundamental framework and activities of viruses.
Verified Answer
ST
Samuel TawiahJul 31, 2024
Final Answer :
D
Explanation :
This process is known as antigenic drift, as the surface antigens of the virus gradually drift or change over time, leading to decreased effectiveness of previously produced antibodies.
Learning Objectives
- Gain insight into the fundamental framework and activities of viruses.