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. 2022 Jan 28;12:1554. doi: 10.1038/s41598-022-05498-z

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© The Author(s) 2022

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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COVID-19 infections (total cases and hospitalizations) and vaccination rate. Vaccination rate is the number of individuals vaccinated per hundred. The solid line in each figure is a fitted linear curve between the growth rate of total cases/hospitalizations and vaccination rate. (a), Association between the growth rate of total cases and at least 1 dose of vaccination (coefficient = − 0.006, R² = 35.3%). (b) Association between the growth rate of total cases and 2 doses of vaccination (coefficient = − 0.013, R² = 28.6%). (c) Association between the growth rate of total hospitalizations and at least 1 dose of vaccination (coefficient = − 0.003, R² = 20.8%). (d), Association between the growth rate of total hospitalizations and 2 doses of vaccination (coefficient = − 0.007, R² = 16.6%).