biostudies-literatureLi HBasic Research Guiding Program Project of Yueyang CityNational Natural Science Foundation of China513-521https://www.ebi.ac.uk/biostudies/studies/S-EPMC9329019biostudies-literatureUnknown16(7)The aim of this study was to investigate the clinical characteristics of Chlamydia psittaci pneumonia and evaluate the diagnostic value of Metagenomic Next-Generation Sequencing (mNGS). A total of 44 patients diagnosed with Chlamydia psittaci pneumonia using mNGS were retrospectively analysed. The demographic and clinical features, laboratory data, imaging findings and clinical outcomes were collected. Results showed that 65.91% of the patients had a history of exposure to poultry or birds. All patients presented with fever. Apart from systemic and respiratory symptoms, some patients also presented with digestive and neurological symptoms. Respiratory failure was common among patients. The key laboratory tests were normal white blood cell counts, slightly elevated PCT, changes in levels ofThe clinical respiratory journalMetagenomic next-generation sequencing for the diagnosis of Chlamydia psittaci pneumonia.PMC9329019821000532020-21Li HXiong JLiu KZhang HYu DHuang LLi KCheng XLiu XChen ZDu DXiao FHao BWang YfalseMetagenomic next-generation sequencing for the diagnosis of Chlamydia psittaci pneumonia.The aim of this study was to investigate the clinical characteristics of Chlamydia psittaci pneumonia and evaluate the diagnostic value of Metagenomic Next-Generation Sequencing (mNGS). A total of 44 patients diagnosed with Chlamydia psittaci pneumonia using mNGS were retrospectively analysed. The demographic and clinical features, laboratory data, imaging findings and clinical outcomes were collected. Results showed that 65.91% of the patients had a history of exposure to poultry or birds. All patients presented with fever. Apart from systemic and respiratory symptoms, some patients also presented with digestive and neurological symptoms. Respiratory failure was common among patients. The key laboratory tests were normal white blood cell counts, slightly elevated PCT, changes in levels of2022-01-01T00:00:00Z2022 Jul2025-04-04T10:45:22.07Z2025-04-04T10:45:22.07ZS-EPMC93290193572496510.1111/crj.13519