Question

The principle of immunisation relies on the body's ability to:

Options

• Destroy all foreign substances immediately

• Neutralise antibodies produced by vaccines

• Generate memory B-cells and T-cells that recognise pathogens on subsequent exposure

• Prevent any immune response from activating

Answer 1

The principle of immunisation is based on the immune system's memory. The body generates memory B-cells and T-cells in response to vaccination, and these cells recognise the pathogen quickly upon subsequent exposure, enabling a rapid and robust immune response to neutralise invaders.