Our genomes contain two copies of the CCR5 gene. It is known that people who carry two defective copies of this gene are highly resistant to HIV. But this double mutation of the CCR5 gene, which a Chinese scientist intentionally edited into human embryos last year, is also associated with a 21% increased risk of dying early, a new study showed.


원문출처 : https://www.cnn.com/2019/06/03/health/crispr-gene-edit-increased-death-risk-study/index.html