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. 2022 Oct 28;5:161. doi: 10.1038/s41746-022-00704-8

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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 license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license 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 license, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 10 — Red represents infection cases, green represents susceptible cases, blue represents immune individuals, and grey represents indirectly protected cases. a This group had no immune individuals or isolated infection cases and did not increase social distance, which eventually led to case transmission. b This group has immune individuals and protective barriers, so it can effectively prevent the spread of the virus.