Doctors use immune therapy against cervical cancer; 2 of 9 women see tumors disappear

Two years ago, Arrica Wallace was riddled with tumors from widely spread cervical cancer that the strongest chemotherapy and radiation could not beat back. Today, the Kansas mother shows no signs of the disease, and it was her own immune system that made it go away.

The experimental approach that helped her is one of the newest frontiers in the rapidly advancing field of cancer immunotherapy, which boosts the body's natural ways of attacking tumors.

At a conference in Chicago on Monday, doctors also reported extending gains recently made with immune therapies against leukemia and the skin cancer melanoma to bladder, lung and other tumour types.

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