Correction to: Nature Medicine https://doi.org/10.1038/s41591-024-03418-4, published online 3 January 2025.

In the version of the article initially published, the y-axis label in Fig. 3f was incorrect and has now been amended to “% Cas3+ of live target cells”. Additionally, this article was originally published under Creative Commons Attribution 4.0 International license, CC-BY-NC-ND, © The Author(s). It is now available under a Creative Commons Attribution 4.0 International license, CC-BY, © The Author(s). These corrections have been made to the HTML and PDF versions of the article.