The Research Letter titled, “Disparities in SARS-CoV-2 Vaccination-to-Infection Risk During the COVID-19 Pandemic in Massachusetts,”1 published online September 17, 2021, included a data error in the Results section. The percentage of 649 379 SARS-CoV-2 infections among 6 755 622 residents of included communities in the study is 9.6%, rather than 8.9%. An Additional Information section was also added to the end matter. The article has been corrected online.
Error in Results and Additional Information Section Added to End Matter. JAMA Health Forum. 2021;2(11):e213871. doi:10.1001/jamahealthforum.2021.3871