In the age of coronaviruses, there is another role that RNA interference may play. Throughout the history of life on our planet, some organisms (though not humans) have evolved ways to use RNA interference to fight off viruses.5 As Doudna wrote in a scholarly publication back in 2013, researchers hoped to find ways to use RNA interference to protect humans from infections.6 Two papers published in Science that year gave strong evidence that it might work. The hope then was that drugs based on RNA interference might someday be a good option for treating severe viral infections, including those
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