Observational studyAnnals of clinical microbiology and antimicrobials2023
Epidemiological and clinical characteristics of psittacosis among cases with complicated or atypical pulmonary infection using metagenomic next-generation sequencing: a multi-center observational study in China.
Observational study in Annals of clinical microbiology and antimicrobials, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.
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Who cites it
22 citing papers in PubMed.
- The re-emergence of psittacosis in China: a scoping review of epidemiology, diagnostics, and One Health priorities.Science in One Health · 2026Review
- Full-term pregnancy after severe gestational psittacosis: a case report and literature review.Frontiers in pharmacology · 2026Article
- Hearing loss as the initial manifestation ofIDCases · 2026Article
- The relationship betweenFrontiers in medicine · 2026Article
- Clinical Characteristics and Machine Learning-Based Severity Classification ofInfection and drug resistance · 2026Article
- Review
- Co-Infection ofInfection and drug resistance · 2026Article
- Clinical characteristics and risk factors associated with severe community-acquired pneumonia infected byMicrobiology spectrum · 2025Article
- Clinical characteristics of Chlamydia psittaci pneumonia: a single-center, retrospective study over 5 years.BMC infectious diseases · 2025Article
- A Case of Psittacosis - Putian City, Fujian Province, China, April 2025.China CDC weekly · 2025Article
- Psittacosis in Focus: A Review Addressing the Risks and Management Challenges in Outbreak Scenarios.Health science reports · 2025Article
- Psittacosis Outbreak in Europe: A Concern for Public Health.The clinical respiratory journal · 2025Article
- The impact of bronchoalveolar lavage fluid metagenomics next-generation sequencing on the diagnosis and management of patients with suspected pulmonary infection.Frontiers in cellular and infection microbiology · 2025Article
- Spatial analysis and prediction of psittacosis in Zhejiang Province, China, 2019-2024.Frontiers in public health · 2025Article
- Clinical Characteristics and Predicting Disease Severity in Chlamydia psittaci Infection Based on Metagenomic Next-Generation Sequencing.Infection and drug resistance · 2025Article
- SevereFrontiers in medicine · 2025Article
- Epidemiological characteristics of human psittacosis in Guangzhou, China, January 2021 to June 2024.Frontiers in public health · 2025Article
- Epidemiological characteristics of human psittacosis in Guangdong Province, China, 2019-2024.Frontiers in public health · 2025Article
- Analysis of Clinical Characteristics and Severe Factors of 47 Cases of Psittacosis.Infection and drug resistance · 2025Article
- A case of severe psittacosis pneumonia complicated by splenic infarction.BMC infectious diseases · 2024Article
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Authors and funding
9 authors.
Funding
Abstract
backgroundChlamydia psittaci (C. psittaci) causes parrot fever in humans. Development of metagenomic next-generation sequencing (mNGS) enables the identification of C. psittaci.
methodsThis study aimed to determine the epidemiological and clinical characteristics of parrot fever cases in China. A multi-center observational study was conducted in 44 tertiary and secondary hospitals across 14 provinces and municipalities between April 2019 and October 2021.
resultsA total of 4545 patients with complicated or atypical pulmonary infection were included in the study, among which the prevalence of C. psittaci was determined to be 2.1% using mNGS. The prevalence of C. psittaci was further determined across demographic groups and types of specimens. It was significantly higher in patients with senior age (2.6% in those > 50 years), winter-spring (3.6%; particularly in December, January, and February), and southwestern (3.4%) and central and southern China (2.7%) (each P < 0.001). Moreover, the prevalence was the highest in bronchoalveolar lavage fluid (BALF) (2.9%), compared with sputum (1.1%) and peripheral blood specimens (0.9%). Additionally, co-infection of principal microorganisms was compared. Certain microorganisms were more likely to co-infect in parrot fever cases, such as Candida albicans in BALF (26.7%) and peripheral blood (6.3%), compared with non-parrot fever cases (19.7% and 1.3%); however, they did not significantly differ (each P > 0.05).
conclusionParrot fever remains low in patients with complicated or atypical pulmonary infection. It is likely to occur in winter-spring and southwestern region in China. BALF may be the optimal specimen in the application of mNGS. Co-infection of multiple microorganisms should be further considered.
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