Understanding Influenza Vaccines and Immune Response

What is the primary method by which influenza vaccines trigger an immune response?

• By altering the host's DNA

• By directly attacking the virus

• By mimicking a viral infection

• By using live virus particles

Which cells are responsible for displaying antigens on their surface after ingesting hemagglutinin?

• Helper T cells

• Macrophages

• Cytotoxic T cells

• B cells

What role do helper T cells play in the immune response to influenza vaccines?

• They assist in antibody generation and memory B cell activation

• They suppress the immune response

• They produce antibodies directly

• They ingest hemagglutinin independently

How do memory B cells contribute to the immune response against influenza?

• By producing hemagglutinin antibodies

• By aiding in future immune responses

• By directly attacking the virus

• By altering the host's DNA

What happens when the vaccine strain matches the live virus strain in terms of immune response?

• The virus is allowed to attach to host cells

• Hemagglutinin antibodies block viral attachment

• The immune response is suppressed

• The host's DNA is altered