Cumulative number of new cases of type 1 diabetes in children and adolescents in Germany over the years 2018 (black), 2019 (blue), and 2020 (red) and the first half of 2021 (green). Week-specific information on the time of diabetes onset was missing for seven patients in 2021, 12 patients in 2020, and nine patients in 2019 and 16 patients in 2018. These patients were not included in the illustration.