AI Article Synopsis

  • This study examines the prevalence of co-infections with Burkholderia cepacia complex (Bcc) in patients with respiratory infections like COVID-19 and H7N9, highlighting a lack of previous research on this topic.
  • A total of 49 Bcc isolates were analyzed from patients, revealing that those infected with COVID-19 had a higher rate of multidrug resistance and a shorter median lethal time compared to those with H7N9.
  • The findings suggest that COVID-19-Bcc may have evolved from H7N9-Bcc, demonstrating increased virulence and antibiotic resistance in the context of respiratory infections.

Article Abstract

Purpose: is a conditioned pathogen in the medical setting and mainly affects patients with cystic fibrosis. We found co-infection with complex (Bcc) in many patients with respiratory tract infections, including H7N9 and COVID-19. However, previous studies have not focused on co-infections with BCC and respiratory viruses. Therefore, this study attempted to clarify the evolution of COVID-19-Bcc and H7N9-Bcc in terms of genetic background, antibiotic resistance, and virulence phenotypes.

Methods: This study retrospectively collected 49 Bcc isolated from patients with H7N9 and COVID-19 in a tertiary hospital of Zhejiang Province, of which 42 isolates were isolated from patients with H7N9, seven isolates were isolated from patients with COVID-19. The collected isolates were tested for antibiotic susceptibility, infection model, and whole-genome COVID-19-Bcc Characterization.

Results: The test results of 49 strains of Bcc showed that the strains isolated from COVID-19 patients accounted for 57.1% of multidrug-resistance resistant strains. Statistical analysis of the median lethal time of showed that the median fatal time for COVID-19-Bcc was shorter and more virulent than that of H7N9-Bcc (P<0.05). The results of phylogenetic analysis indicated that COVID-19-Bcc may have evolved from H7N9-Bcc.

Conclusion: In this study, co-infection with BCC in many patients with respiratory tract infections, including H7N9 and COVID-19, was first identified and clarified that COVID-19-Bcc may have evolved from H7N9-Bcc and has the characteristics of hypervirulence and multidrug resistance.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11687121PMC
http://dx.doi.org/10.2147/IDR.S495676DOI Listing

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