Authorities in China took multiple steps to tighten rules and ethical standards affecting human gene editing in the wake of the revelations about his previous research. But the scientist’s release of a new proposal involving gene editing of embryos has scientists and medical ethics experts concerned – and confused. Genetic manipulation of human embryos – both viable and nonviable ones – is typically tightly controlled globally and some countries ban all such research, experts say. But there is robust global debate around allowing genome editing of human embryos to treat serious genetic conditions or expanding research. Chinese law does not allow gene-edited human embryos used in research to be implanted into humans, or developed for more than 14 days.

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Persons: ”, It’s, Peter Dröge, “, “ I’m, ” Joy Zhang, bioethicists, There’s, He’s, He’s “, Françoise Baylis, ” Baylis Organizations: Hong Kong CNN, Authorities, Nanyang Technological University, Centre for Global Science, University of Kent, CNN, bioethicists, Twitter, China’s Ministry of Science, Technology, National Health Commission, Southern University of Science, China’s biosciences, Dalhousie University Locations: Hong Kong, China, Beijing, Singapore, Britain, USA, Europe, Shenzhen