{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,12]],"date-time":"2026-07-12T02:32:23Z","timestamp":1783823543555,"version":"3.55.0"},"reference-count":11,"publisher":"Springer Science and Business Media LLC","issue":"11","license":[{"start":{"date-parts":[[2025,8,30]],"date-time":"2025-08-30T00:00:00Z","timestamp":1756512000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2025,8,30]],"date-time":"2025-08-30T00:00:00Z","timestamp":1756512000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"funder":[{"DOI":"10.13039\/501100004168","name":"Universit\u00e4t zu L\u00fcbeck","doi-asserted-by":"crossref","id":[{"id":"10.13039\/501100004168","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Eur J Clin Microbiol Infect Dis"],"published-print":{"date-parts":[[2025,11]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    <jats:italic>Chlamydia pneumoniae<\/jats:italic>\n                    (\n                    <jats:italic>C. pneumoniae<\/jats:italic>\n                    ) is a recognized cause of respiratory infections in children and adolescents, while it is often considered a negligible pathogen in adults outside of outbreaks. We performed a retrospective analysis from a nationwide surveillance network in Germany that collected data from 2018 to 2024. A multivariate analysis (binomial model) was performed to assess the influence of year, hospitalization status, gender and age on\n                    <jats:italic>C. pneumoniae<\/jats:italic>\n                    detection rate. Our analysis showed an increasing\n                    <jats:italic>C. pneumoniae<\/jats:italic>\n                    detection rate in 2024 compared to 2019, especially in children below 15 years and adults aged 30\u201350 years, mostly in patients who were treated as outpatients.\n                  <\/jats:p>","DOI":"10.1007\/s10096-025-05244-z","type":"journal-article","created":{"date-parts":[[2025,8,30]],"date-time":"2025-08-30T11:15:59Z","timestamp":1756552559000},"page":"2851-2854","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Sharp increase in Chlamydia pneumoniae infections in 2024 in Germany"],"prefix":"10.1007","volume":"44","author":[{"given":"S\u00e9bastien","family":"Boutin","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andi","family":"Krumbholz","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tobias Siegfried","family":"Kramer","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michael","family":"Boehm","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Norbert","family":"Schmeisser","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rolf","family":"Kaiser","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jan","family":"Rupp","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2025,8,30]]},"reference":[{"issue":"4","key":"5244_CR1","doi-asserted-by":"publisher","first-page":"568","DOI":"10.1086\/511076","volume":"44","author":"S Kumar","year":"2007","unstructured":"Kumar S, Hammerschlag MR (2007) Acute respiratory infection due to chlamydia pneumoniae: current status of diagnostic methods. Clin Infect Dis 44(4):568\u2013576. https:\/\/doi.org\/10.1086\/511076","journal-title":"Clin Infect Dis"},{"key":"5244_CR2","volume-title":"Chlamydia Pneumonia","author":"J Gautam","year":"2024","unstructured":"Gautam J, Krawiec C (2024) Chlamydia Pneumonia. StatPearls, Treasure Island (FL)"},{"issue":"8","key":"5244_CR3","doi-asserted-by":"publisher","first-page":"847","DOI":"10.1093\/cid\/cir515","volume":"53","author":"L Senn","year":"2011","unstructured":"Senn L, Jaton K, Fitting JW, Greub G (2011) Does respiratory infection due to chlamydia pneumoniae still exist? Clin Infect Dis 53(8):847\u2013848. https:\/\/doi.org\/10.1093\/cid\/cir515","journal-title":"Clin Infect Dis"},{"issue":"1","key":"5244_CR4","doi-asserted-by":"publisher","first-page":"129","DOI":"10.1007\/s15010-023-02070-3","volume":"52","author":"BT Schleenvoigt","year":"2024","unstructured":"Schleenvoigt BT, Ankert J, Barten-Neiner G, Voit F, Suttorp N, Boesecke C et al (2024) Pathogen spectrum of community acquired pneumonia in people living with HIV (PLWH) in the German CAPNETZ-cohort. Infection 52(1):129\u2013137. https:\/\/doi.org\/10.1007\/s15010-023-02070-3","journal-title":"Infection"},{"key":"5244_CR5","doi-asserted-by":"publisher","DOI":"10.1016\/j.ijid.2025.107897","volume":"155","author":"S Edouard","year":"2025","unstructured":"Edouard S, Attamna R, Million M, Boschi C, Delerce J, Caputo A et al (2025) Significant rise of Chlamydia pneumoniae infection in 2024 in Marseille, France. 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Emerg Infect Dis 30(4):810\u2013812. https:\/\/doi.org\/10.3201\/eid3004.231610","journal-title":"Emerg Infect Dis"},{"key":"5244_CR8","doi-asserted-by":"publisher","first-page":"1415157","DOI":"10.3389\/fpubh.2024.1415157","volume":"12","author":"XH Yao","year":"2024","unstructured":"Yao XH, Shen F, Hao J, Huang L, Keng B (2024) A review of Legionella transmission risk in built environments: sources, regulations, sampling, and detection. Front Public Health 12:1415157. https:\/\/doi.org\/10.3389\/fpubh.2024.1415157","journal-title":"Front Public Health"},{"issue":"2","key":"5244_CR9","doi-asserted-by":"publisher","first-page":"e100","DOI":"10.1016\/S2666-5247(23)00344-0","volume":"5","author":"PM Meyer Sauteur","year":"2024","unstructured":"Meyer Sauteur PM, Beeton ML, European Society of Clinical M, Infectious Diseases Study Group for M, Chlamydia I, the EMpSsg (2024) Mycoplasma pneumoniae: delayed re-emergence after COVID-19 pandemic restrictions. Lancet Microbe 5(2):e100\u2013e1. https:\/\/doi.org\/10.1016\/S2666-5247(23)00344-0","journal-title":"Lancet Microbe"},{"key":"5244_CR10","doi-asserted-by":"publisher","first-page":"q1348","DOI":"10.1136\/bmj.q1348","volume":"385","author":"J Feinmann","year":"2024","unstructured":"Feinmann J (2024) Analysis reveals global post-covid surge in infectious diseases. BMJ 385:q1348. https:\/\/doi.org\/10.1136\/bmj.q1348","journal-title":"BMJ"},{"issue":"1","key":"5244_CR11","doi-asserted-by":"publisher","first-page":"268","DOI":"10.1186\/s12864-015-1377-8","volume":"16","author":"T Weinmaier","year":"2015","unstructured":"Weinmaier T, Hoser J, Eck S, Kaufhold I, Shima K, Strom TM et al (2015) Genomic factors related to tissue tropism in chlamydia pneumoniae infection. BMC Genomics 16(1):268. https:\/\/doi.org\/10.1186\/s12864-015-1377-8","journal-title":"BMC Genomics"}],"container-title":["European Journal of Clinical Microbiology &amp; Infectious Diseases"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1007\/s10096-025-05244-z.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/article\/10.1007\/s10096-025-05244-z\/fulltext.html","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1007\/s10096-025-05244-z.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,11,15]],"date-time":"2025-11-15T12:35:53Z","timestamp":1763210153000},"score":1,"resource":{"primary":{"URL":"https:\/\/link.springer.com\/10.1007\/s10096-025-05244-z"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,8,30]]},"references-count":11,"journal-issue":{"issue":"11","published-print":{"date-parts":[[2025,11]]}},"alternative-id":["5244"],"URL":"https:\/\/doi.org\/10.1007\/s10096-025-05244-z","relation":{},"ISSN":["0934-9723","1435-4373"],"issn-type":[{"value":"0934-9723","type":"print"},{"value":"1435-4373","type":"electronic"}],"subject":[],"published":{"date-parts":[[2025,8,30]]},"assertion":[{"value":"18 June 2025","order":1,"name":"received","label":"Received","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"10 August 2025","order":2,"name":"accepted","label":"Accepted","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"30 August 2025","order":3,"name":"first_online","label":"First Online","group":{"name":"ArticleHistory","label":"Article History"}},{"order":1,"name":"Ethics","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"All data were collected pseudonymized and the usage of the database was approved by the ethics committee of the University of Luebeck (Az: 2024\u2009\u2212\u2009264).","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethical statement"}},{"value":"The authors declare no competing interests.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}},{"value":"None declared.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Conflict of interest"}}]}}