(Cell 184, 5902–5915.e1–e17; November 24, 2021) In the originally published version of this article, we reported that neurons in the insular cortex encode and retrieve specific immune responses. We have identified minor errors in the STAR Methods section, which are located in the paragraph entitled “Activity-dependent cell labeling.” First, the amount of Tamoxifen injected into the mice should be 150 mg/kg instead of 15 mg/kg as we originally stated. Second, the injected dose of the 4-OHT final solution is missing from the text; it should be 50 mg/kg. We have also corrected errors in the reporting of the n values for experiments in the figure legends (Figures 2C, 2D, 2P, 3F, and 3H) and the y-axis description for Figure S5M. These errors have now been corrected in the online version of the paper. The authors apologize for any inconvenience it may have caused the readers.