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. 2022 Mar 21;9:774550. doi: 10.3389/fmed.2022.774550

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Copyright © 2022 Wertenauer, Brenner Michael, Dressel, Pfeifer, Hauser, Wieland, Mayer, Mutschmann, Roskos, Wertenauer, Moissl, Lorkowski and März.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Framing of the COVAG study (February 1-March 31) into the time course of the COVID-19 pandemic in Germany. Abszissa: calendar week within 2021; ordinate: Germany-wide weekly incidence rate of SARS-Cov-2 infections per 100,000 inhabitants; bars: weekly incidence rates of infections with SARS-CoV-2 variant B.1.1.7 (alpha, blue), variant B.1.617.2 (delta, red), and wild-type or other variants (NIM-type, gray). Blue solid line: proportion of variant B.1.1.7 (alpha) in the COVAG study extrapolated to Germany.