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. 2024 Oct 7;24:1116. doi: 10.1186/s12879-024-09999-2

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© The Author(s) 2024

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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Fig. 2 — Phylogenetic analysis of SARS-CoV-2 partial S gene sequences from 52 nasal swab samples collected at Hospital A. The tree was constructed using the maximum likelihood method with a bootstrap value of 1,000. Accession numbers for sequences obtained in this study and reference sequences are shown. Labels indicating the months of sample collection are shown. Bootstrap values greater than 50 are indicated at the nodes. The bar represents nucleotide substitutions per site. A bat coronavirus sequence was used as an outgroup