Sparse public data on CRISPR’d embryos leave many questions unanswered

While the world waited for He Jiankui to back up his claim of CRISPR’ing two babies to an international summit of genome editors in Hong Kong on Wednesday morning, STAT asked genomics experts to review the only data He has publicly revealed, in a spreadsheet on the Chinese Clinical Trials Registry. Their verdict: The quality of the data is low, and there’s too little of it, to draw any firm conclusions about what He’s team accomplished.