A Third CRISPR Baby may Have Been Born

The Second International Summit on Human Genome Editing, held in Hong Kong last November, was meant to debate the pros and cons of genetically engineering humans. Instead, the proceedings were turned upside down by the revelation that He Jiankui, a Chinese biophysicist, had already done it.

He’d gone ahead and edited the DNA of twin girls with the powerful gene modification tool called CRISPR.

Then the Chinese scientist sprang a further surprise on the shocked gene-editing experts. A second Chinese woman, he said, was pregnant with yet another CRISPR baby. An early pregnancy test had confirmed it.

That third CRISPR baby is now due to be born at any moment—if he or she hasn’t come crying into the world already.

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