The original version of this Article contained a typographical error in the Results section in which the percentage of patients aged 16-39 receiving their second vaccination dose was reported as 32.2% rather than 42.2%.This has now been updated and the Results section, "Among the 5,506,398 patients receiving their 1st vaccination dose and 5,152,417 patients receiving their 2nd vaccination dose, 2,382,864 (43.3%) and 2,176,172 (32.2%) patients were of age 16-39, respectively." now reads: "Among the 5,506,398 patients receiving their 1st vaccination dose and 5,152,417 patients receiving their 2nd vaccination dose, 2,382,864 (43.3%) and 2,176,172 (42.2%) patients were of age 16-39, respectively."
Sun et al. (2026) studied this question.