Correction to: Nature Immunology https://doi.org/10.1038/s41590-023-01601-2, published online 4 September 2023.

In the version of the article originally published, the clinical trial number NCT05668091 was missing the final digit in the first paragraph of the “Biomarker and therapeutic targets for PASC clinical trials” section. The error has been corrected in the HTML and PDF versions of the article.