Think of your immune system as the hero in an action-packed blockbuster. It exists to protect your body from harmful invaders.

It is made up of two lines of defence: the innate and the adaptive immune systems.

The innate and the adaptive immune systems work together to protect us from germs and cancer. The innate immune system is fast acting and kick-starts the adaptive immune response; however, the innate immune system does not provide long-lasting protection. The second line of defence, the adaptive immune system, provides lifelong immunity; it “remembers” germs or cancers so that it can protect your body against similar attacks in the future.

If the immune system is the cancer warrior, then T-cells are the key weapons in its arsenal. They attack and destroy cells that are infected. Each bears its own unique crest called the T-cell receptor that has the ability to recognize different parts of an enemy.


A group of cells that are rapidly alerted after an infection to start the immune response.


A group of highly specialized cells, including T-cells, which can eliminate or prevent a viral or bacterial infection or fight against cancer cells.

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