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. 2017 May 12;7:1864. doi: 10.1038/s41598-017-02041-3

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© The Author(s) 2017

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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Histological examination of rat organs after intravenous inoculation of predatory bacteria. SD rats were intravenously inoculated (through tail vein injection) with PBS, B. bacteriovorus, M. aeruginosavorus, or K. pneumoniae. Histological examination of harvested rat livers, kidneys, and spleens exposed to B. bacteriovorus and M. aeruginosavorus revealed no abnormal pathology compared to rats treated with PBS. All images are representative micrographs that were taken at 18 hours post-inoculation and at X40 total magnification.