Hope for thousands of breast cancer patients as scientists find a cell that can destroy all of the tumours and prevent the killer disease returning

Thousands of breast cancer patients have been given hope after scientists found an immune cell which may stop the disease returning.

In a world-first discovery, researchers have spotted 'gamma delta T cells' in human breast tissue.

They believe the cell, released by the immune system to fight tumours, may play an important role in wiping out breast cancer.

Women are more likely to survive breast cancer if their immune system kills all the tumour cells so the cancer cannot come back.

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