A single injection of a novel CRISPR gene-editing treatment safely and efficiently removes SIV—a virus related to the AIDS-causing agent HIV—from the genomes of non-human primates, scientists at the Lewis Katz School of Medicine at Temple University now report. The groundbreaking work complements previous experiments as the basis for the first-ever clinical trial of an HIV gene-editing technology in human patients, which was authorized by the Food and Drug Administration (FDA) in 2022.