Great Ormond Street Hospital in London, United Kingdom, is investigating a new screening test for Down syndrome (NIPT – non-invasive prenatal screening test) in order to establish the conditions for its use within the National Health Service (NHS), the United Kingdom’s public health system. With just one single blood test carried out during pregnancy, this new technique can detect whether or not the foetus is a carrier of Down syndrome. This new test will dispense with amniocentesis, which causes miscarriage in 1% of cases. The results have proved to be 99% reliable. 750 children are currently born with Down syndrome every year in the United Kingdom. Tests are continuing.