New 10 minute test for cancer developed by scientists

A 10-minute cancer test which can be taken at home using just a drop of saliva is being developed by scientists. David Wong, a professor of oncology at California State University says it is possible to detect tumour DNA when is it circulating in bodily fluids – an approach known as a liquid biopsy. The saliva test is 100 per cent accurate and is so simple that it could be carried out at a pharmacist, the dentist or even in the privacy of someone’s own home if they were concerned, he said.

Currently scientists can only use blood tests to detect cancer if they have already taken a biopsy and sequenced a tumour, so they know which genetic signature to look for. Although this can be used to monitor cancer spread it cannot be used for an initial test. And it can throw up false positive. Professor Wong’s tests have shown that just a single drop of saliva contains enough data to give a definitive diagnosis as soon as a tumour develops, he said. The test is non-invasive and cheap, costing around just 15 pounds. READ MORE

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