Getting time with Qiao Jie is not easy. At 7:30 a.m., the line coming out of the fertility centre that she runs blocks the doorway and extends some 80 metres down the street. Inside, about 50 physicians on her team are discussing recent findings, but Qiao, a fertility specialist and president of Peking University Third Hospital in Beijing, is still in an early-morning consult.

When she finally emerges, she jumps to the topic at hand: spreading awareness of preimplantation genetic diagnosis (PGD), a procedure that helps couples undergoing in vitro fertilization (IVF) to avoid passing on genetic mutations that could cause disease or disability in their children. Qiao typically refuses interview requests, but she’s concerned that people aren’t getting the message about PGD fast enough. “Now, more and more diseases can be stopped — if not immediately, in the generation after next,” she says.

Early experiments are beginning to show how genome-editing technologies such as CRISPR might one day fix disease-causing mutations before embryos are implanted. But refining the techniques and getting regulatory approval will take years. PGD has already helped thousands of couples. And whereas the expansion of PGD around the world has generally been slow, in China, it is starting to explode.

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Image: By Zephyris at the English language Wikipedia, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=5971161

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