{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,22]],"date-time":"2026-05-22T07:05:06Z","timestamp":1779433506443,"version":"3.53.1"},"reference-count":11,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2026,5,22]],"date-time":"2026-05-22T00:00:00Z","timestamp":1779408000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Med."],"abstract":"<jats:p>\n                    An 80-year-old male patient on maintenance hemodialysis was admitted with \u201chigh fever and cough.\u201d Pulmonary imaging suggested pneumonia, but his condition deteriorated rapidly despite empirical broad-spectrum antimicrobial therapy (covering bacteria, atypical pathogens, and fungi), progressing to respiratory failure and delirium. He was transferred to the intensive care unit for continuous renal replacement therapy. Routine microbiological tests (blood culture, sputum culture, respiratory pathogen PCR) were all negative. Detailed history revealed that the patient had kept a parrot for over a month prior to illness onset. Metagenomic next-generation sequencing of blood and sputum specimens detected abundant\n                    <jats:italic>Chlamydia psittaci<\/jats:italic>\n                    sequences. Following confirmation, treatment was adjusted to oral minocycline combined with intravenous azithromycin. The patient\u2019s temperature gradually normalized, neuropsychiatric symptoms resolved, and pulmonary imaging showed marked improvement, ultimately leading to successful discharge. This case highlights the importance of considering zoonotic pathogens in immunocompromised patients with refractory pneumonia. Detailed history-taking and metagenomic next-generation sequencing (mNGS) technology are crucial for early diagnosis. Early use of mNGS should be strongly considered in immunocompromised patients with severe pneumonia unresponsive to empiric therapy and negative routine workup, particularly when epidemiological clues such as bird exposure are present.\n                  <\/jats:p>","DOI":"10.3389\/fmed.2026.1825118","type":"journal-article","created":{"date-parts":[[2026,5,22]],"date-time":"2026-05-22T06:08:48Z","timestamp":1779430128000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":0,"title":["A case of severe psittacosis in a hemodialysis patient\u2014the critical role of detailed medical history and next-generation sequencing"],"prefix":"10.3389","volume":"13","author":[{"given":"Yuanzi","family":"Liang","sequence":"first","affiliation":[{"name":"Department of Radiology, Aerospace Center Hospital","place":["Beijing, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Junqi","family":"Hu","sequence":"additional","affiliation":[{"name":"Department of Nephrology, Aerospace Center Hospital","place":["Beijing, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhiqun","family":"Wang","sequence":"additional","affiliation":[{"name":"Department of Radiology, Aerospace Center Hospital","place":["Beijing, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1965","published-online":{"date-parts":[[2026,5,22]]},"reference":[{"key":"ref1","doi-asserted-by":"publisher","first-page":"413","DOI":"10.1017\/S095026880006790X","article-title":"Psittacosis in a highly endemic area in Italy","volume":"99","author":"Maffei","year":"1987","journal-title":"Epidemiol Infect"},{"key":"ref2","doi-asserted-by":"publisher","first-page":"2010","DOI":"10.1186\/s12889-025-21612-y","article-title":"Global prevalence of psittacosis in outbreaks: a systematic review and 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SPECT","volume":"48","author":"Saeki","year":"1996","journal-title":"No To Shinkei"},{"key":"ref10","doi-asserted-by":"publisher","first-page":"621","DOI":"10.1186\/s12879-021-06205-5","article-title":"A case of chlamydia psittaci caused severe pneumonia and meningitis diagnosed by metagenome next-generation sequencing and clinical analysis: a case report and literature review","volume":"21","author":"Shi","year":"2021","journal-title":"BMC Infect Dis"},{"key":"ref11","doi-asserted-by":"publisher","first-page":"71","DOI":"10.1080\/0036554021000026984","article-title":"Presence of Chlamydophila psittaci DNA in the central nervous system of a patient with status epilepticus","volume":"35","author":"Walder","year":"2003","journal-title":"Scand J Infect Dis"}],"container-title":["Frontiers in Medicine"],"original-title":[],"link":[{"URL":"https:\/\/www.frontiersin.org\/articles\/10.3389\/fmed.2026.1825118\/full","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,5,22]],"date-time":"2026-05-22T06:08:49Z","timestamp":1779430129000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.frontiersin.org\/articles\/10.3389\/fmed.2026.1825118\/full"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,5,22]]},"references-count":11,"alternative-id":["10.3389\/fmed.2026.1825118"],"URL":"https:\/\/doi.org\/10.3389\/fmed.2026.1825118","relation":{},"ISSN":["2296-858X"],"issn-type":[{"value":"2296-858X","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,5,22]]},"article-number":"1825118"}}