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. 2026 Mar 20;26:412. doi: 10.1186/s12866-026-04959-z

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© The Author(s) 2026

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 — Core genome SNP tree of 35 Staphylococcus aureus multilocus sequence type 133. The isolates originate from ewes at four different farms in Norway. Tip-points are colored according to farm of origin, while the shape of the tip depicts the sampling point. Isolates collected during summer are from ewes with clinical mastitis. SNP ranges are indicated for closely related isolates