Metagenomic diagnosis of severe psittacosis using multiple sequencing platforms.

Abstract

BACKGROUND:

Chlamydia psittaci is an avian pathogen that can cause lethal human infections. Diagnosis of C. psittaci pneumonia is often delayed due to nonspecific clinical presentations and limited laboratory diagnostic techniques.

RESULTS:

The MinION platform established the diagnosis in the shortest time, while BGISEQ-500 generated additional in-depth sequence data that included the rapid characterization of antibiotic susceptibility. Cytopathy appeared only in cell cultures of BALF. BALF yielded a higher bacterial load than sputum or blood, and may be the most suitable clinical specimen for the genomic diagnosis of severe pneumonia.

CONCLUSIONS:

This study indicated that the benefits of metagenomic sequencing include rapid etiologic diagnosis of unknown infections and the provision of additional relevant information regarding antibiotic susceptibility. The continued optimization and standardization of sampling and metagenomic analysis promise to enhance the clinical utility of genomic diagnosis.

• Authors: Kaiying Wang, Xiong Liu, Huiying Liu, Peihan Li, Yanfeng Lin, Dongdong Yin, Lang Yang, Jinhui Li, Shenlong Li, Leili Jia, Changqing Bai, Yongqiang Jiang, Peng Li, Hongbin Song
• Journal: BMC genomics (BMC Genomics) Vol. 22 Issue 1 Pg. 406 (Jun 02 2021) ISSN: 1471-2164 [Electronic] England
• PMID: 34078288 (Publication Type: Journal Article)

Topics

• Animals
• Chlamydophila psittaci (genetics)
• Humans
• Metagenome
• Metagenomics
• Pneumonia
• Psittacosis (diagnosis)