What is the primary mechanism by which the influenza virus evades the immune sys

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Question: What is the primary mechanism by which the influenza virus evades the immune system?

Options:

Correct Answer: Antigenic drift

Solution:

Antigenic drift refers to the gradual mutation of viral antigens, allowing the influenza virus to evade the host\'s immune response.

What is the primary mechanism by which the influenza virus evades the immune system?

What is the primary mechanism by which the influenza virus evades the immune system?

Correct Answer: Antigenic drift

Step 1: Understand that the immune system is the body's defense against viruses.
Step 2: Learn that the influenza virus has proteins on its surface called antigens.
Step 3: Know that the immune system recognizes these antigens to fight the virus.
Step 4: Realize that the influenza virus can change its antigens over time.
Step 5: This change is called 'antigenic drift' and happens through small mutations.
Step 6: Because of these mutations, the immune system may not recognize the virus.
Step 7: As a result, the influenza virus can evade the immune response and continue to infect.

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