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A cut-price test that could dramatically increase the chances of having a healthy baby through IVF could be available within 18 months. Oxford University researchers say their test could ‘revolutionise’ the treatment as it is half the price of existing tests and may be just as effective.

It may be cheap enough for use by the Health Service. And, unlike existing tests, it does not involve the potentially risky step of taking a sample of cells from the egg or fledgling embryo, making it safer and more ethically acceptable.