{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,2]],"date-time":"2026-07-02T03:38:02Z","timestamp":1782963482830,"version":"3.54.5"},"reference-count":49,"publisher":"SAGE Publications","issue":"9","license":[{"start":{"date-parts":[[2025,8,25]],"date-time":"2025-08-25T00:00:00Z","timestamp":1756080000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2025,8,25]],"date-time":"2025-08-25T00:00:00Z","timestamp":1756080000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Microbial Drug Resistance"],"published-print":{"date-parts":[[2025,9,1]]},"abstract":"<jats:sec>\n                    <jats:title>Background:<\/jats:title>\n                    <jats:p>\n                      Antimicrobial resistance (AMR) is a growing global threat that complicates the treatment of infectious diseases, including plague.\n                      <jats:italic toggle=\"yes\">Yersinia pestis<\/jats:italic>\n                      , the causative agent of plague, remains a serious public health concern in natural foci, such as those in Kazakhstan, where approximately 40% of the territory is plague-endemic. Despite the last reported human case in 2003, data on antibiotic resistance among\n                      <jats:italic toggle=\"yes\">Y. pestis<\/jats:italic>\n                      isolates from these foci, especially historical ones, remain limited.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Materials and Methods:<\/jats:title>\n                    <jats:p>\n                      A total of 75\n                      <jats:italic toggle=\"yes\">Y. pestis<\/jats:italic>\n                      strains were examined, including 61 isolates obtained from patients and deceased individuals during epidemic outbreaks (1926\u20132003) and 14 isolates from carriers and vectors in natural plague foci. Taxonomic identification was conducted using the Vitek 2 Compact 30 system. Antibiotic susceptibility was assessed by Kirby\u2013Bauer disk diffusion and E-test methods. Extended-spectrum \u03b2-lactam (ESBL) activity was evaluated phenotypically, and resistance genes to glycopeptides and \u03b2-lactams were screened by real-time polymerase chain reaction (RT-PCR) using the BacResista GLA Detection Kit.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>All isolates showed complete susceptibility (100%) to \u03b2-lactams, tetracyclines, aminoglycosides, amphenicols, glycopeptides, lincosamides, and quinolones. The overall susceptibility rate across antibiotic classes was 97.5%. Macrolides exhibited low activity (0.0\u201358.0%), consistent with known limitations against Gram-negative bacteria. No ESBL production was detected phenotypically, and RT-PCR screening found no resistance genes (vanA\/B, mecA, tem, ctx-M-1, shv, oxa, imp, kpc, ndm, etc.).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions:<\/jats:title>\n                    <jats:p>\n                      These findings confirm a lack of resistance to key antibiotic classes in historical\n                      <jats:italic toggle=\"yes\">Y. pestis<\/jats:italic>\n                      isolates from Kazakhstan. Despite the absence of recent human cases, ongoing epizootics among wild animals highlight a persistent risk of transmission. This study, conducted for the first time in Kazakhstan, has important implications for public health preparedness and clinical management during plague outbreaks.\n                    <\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/10766294251362277","type":"journal-article","created":{"date-parts":[[2025,10,8]],"date-time":"2025-10-08T17:09:57Z","timestamp":1759943397000},"page":"287-299","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":2,"title":["Antibiotic Susceptibility Screening and Search for Resistance Genes in\n                    <i>Yersinia pestis<\/i>\n                    Clinical Isolates from Plague Outbreaks in Natural Foci of Kazakhstan (1926\u20132003)"],"prefix":"10.1177","volume":"31","author":[{"given":"Zyat","family":"Abdel","sequence":"first","affiliation":[{"name":"Ministry of Health of the Republic of Kazakhstan, Masgut Aikimbayev's National Scientific Center Especially Dangerous Infections of the National Holding \u201cQazBioPharm\u201d, Astana, Kazakhstan."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zauresh","family":"Zhumadilova","sequence":"additional","affiliation":[{"name":"Ministry of Health of the Republic of Kazakhstan, Masgut Aikimbayev's National Scientific Center Especially Dangerous Infections of the National Holding \u201cQazBioPharm\u201d, Astana, Kazakhstan."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Raikhan","family":"Mussagalieva","sequence":"additional","affiliation":[{"name":"Ministry of Health of the Republic of Kazakhstan, Masgut Aikimbayev's National Scientific Center Especially Dangerous Infections of the National Holding \u201cQazBioPharm\u201d, Astana, Kazakhstan."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Aigul","family":"Abdirassilova","sequence":"additional","affiliation":[{"name":"Ministry of Health of the Republic of Kazakhstan, Masgut Aikimbayev's National 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Aikimbayev's National Scientific Center Especially Dangerous Infections of the National Holding \u201cQazBioPharm\u201d, Astana, Kazakhstan."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Beck","family":"Abdeliyev","sequence":"additional","affiliation":[{"name":"Ministry of Health of the Republic of Kazakhstan, Masgut Aikimbayev's National Scientific Center Especially Dangerous Infections of the National Holding \u201cQazBioPharm\u201d, Astana, Kazakhstan."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dinmukhammed","family":"Otebay","sequence":"additional","affiliation":[{"name":"Ministry of Health of the Republic of Kazakhstan, Masgut Aikimbayev's National Scientific Center Especially Dangerous Infections of the National Holding \u201cQazBioPharm\u201d, Astana, Kazakhstan."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ardak","family":"Jumagaziyeva","sequence":"additional","affiliation":[{"name":"Ministry of Health of the Republic 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