A Chinese researcher claims that he helped make the world's first genetically edited babies—twin girls born this month whose DNA he said he altered with a powerful new tool capable of rewriting the very blueprint of life.
In the U.S., the first planned clinical trials of CRISPR gene editing in people are about to kick off. China already used the gene-altering tool to change the DNA of dozens of people in several clinical trials.
Just one year after scientists in China made history by modifying the DNA of human embryos, a second team of Chinese researchers has done it again. Using CRISPR/Cas9, the researchers introduced HIV-resistance into the embryos, showcasing the tremendous potential for gene-editing.