Gene Editing Is Trickier Than Expected–But Fixes Are in Sight

March 5, 2019

(Wired) – Of all the big, world-remaking bets on the genome-editing tool known as Crispr, perhaps none is more tantalizing than its potential to edit some of humanity’s worst diseases right out of the history books. Just this week, Crispr Therapeutics announced it had begun treating patients with an inherited blood disorder called beta thalassemia, in the Western drug industry’s first test of the technology for genetic disease. But despite the progress, there remain a host of unknowns standing in the way of Crispr-based medicines going mainstream, chief among them safety.

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