ArticleInternational journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases2022
Atypical pneumonia caused by Chlamydia psittaci during the COVID-19 pandemic.
Article in International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.
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20 citing papers in PubMed, 21 citations in OpenAlex.
- Current status and challenges in the diagnosis and treatment of psittacosis.Infectious diseases & immunity · 2026Review
- Rapid diagnosis ofExperimental and therapeutic medicine · 2026Article
- Clinical characteristics of Chlamydia psittaci pneumonia diagnosed by next-generation sequencing: An observational study.Medicine · 2026Observational
- A novel risk stratification model based on creatine kinase and direct bilirubin for identifying severe Chlamydia psittaci pneumonia: a double-center, hypothesis-generating retrospective cohort study.BMC infectious diseases · 2026Article
- The Disproportionate Impact of Structural and Cultural Factors on COVID-19 Outcomes in Hispanic Populations: A Mixed-Methods Study.Journal of racial and ethnic health disparities · 2026Article
- Pathogen spectrum of pulmonary infections in kidney transplant recipients and the diagnostic value of mNGS: a sputum and BALF study based on clinical decision-making.Frontiers in cellular and infection microbiology · 2026Article
- A case-control study onFrontiers in medicine · 2025Article
- Clinical experience with fluoroquinolones for treatment of severeFrontiers in medicine · 2025Article
- The N-terminal domain ofFrontiers in immunology · 2025Article
- Review
- Distinction of clinical features and microbiological methods betweenAnnals of medicine · 2024Article
- Diagnosis and treatment experience of Chlamydia psittaci pneumonia: A multicenter retrospective study in China.BMC infectious diseases · 2024Article
- A case of severe psittacosis pneumonia complicated by splenic infarction.BMC infectious diseases · 2024Article
- Comparison of clinical, laboratory and radiological characteristics between COVID-19 and Chlamydia psittaci pneumonia: a multicenter retrospective study.Scientific reports · 2024Article
- Outbreak ofAnimals : an open access journal from MDPI · 2024Article
- Chlamydia psittaci detected at a live poultry wholesale market in central China.BMC infectious diseases · 2024Article
- Chlamydia psittaci Pneumonia: Diagnosis, Treatment, and Challenges in the Context of COVID-19.The American journal of case reports · 2024Article
- Article
- Clinical features and risk factors of liver injury in patients withFrontiers in cellular and infection microbiology · 2023Article
- Clinical identification and microbiota analysis ofFrontiers in cellular and infection microbiology · 2023Article
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Authors and funding
15 authors at 7 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectivesHere, we retrospectively described the diagnosis and treatment of 32 cases diagnosed with Chlamydia psittaci pneumonia during the COVID-19 pandemic.
methodsClinical information was collected from all the patients. Reverse transcription-PCR and ELISAs were conducted for the detection of COVID-19 using nasal swabs and bronchoalveolar lavage fluid (BALF) samples. Metagenomic next-generation sequencing (mNGS) was performed for the identification of causative pathogens using BALF, peripheral blood and sputum samples. End-point PCR was performed to confirm the mNGS results.
resultsAll 32 patients showed atypical pneumonia and had infection-like symptoms that were similar to COVID-19. Results of reverse transcription-PCR and ELISAs ruled out COVID-19 infection. mNGS identified C. psittaci as the suspected pathogen in these patients within 48 hours, which was validated by PCR, except for three blood samples. The sequence reads that covered fragments of C. psittaci genome were detected more often in BALF than in sputum or blood samples. All patients received doxycycline-based treatment regimens and showed favorable outcomes.
conclusionThis retrospective study, with the highest number of C. psittaci pneumonia enrolled cases in China so far, suggests that human psittacosis may be underdiagnosed and misdiagnosed clinically, especially in the midst of the COVID-19 pandemic.
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