Dual threat: Susceptibility mechanisms and treatment strategies for COVID-19 and bacterial co-infections

COVID-19 has rapidly spread worldwide, posing significant challenges to public health systems. This review offers an in-depth examination of the mechanisms underlying susceptibility and associated clinical features, and treatment strategies associated with bacterial co-infections in COVID-19 patient...

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Main Authors: Keda Chen, Ruiqi Weng, Jiaxuan Li, Hao Wu, Xiaotian Tie, Hongyu Li, Yuanyuan Zhang
Format: Article
Language:English
Published: Elsevier 2025-01-01
Series:Computational and Structural Biotechnology Journal
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Online Access:http://www.sciencedirect.com/science/article/pii/S2001037025001965
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author Keda Chen
Ruiqi Weng
Jiaxuan Li
Hao Wu
Xiaotian Tie
Hongyu Li
Yuanyuan Zhang
author_facet Keda Chen
Ruiqi Weng
Jiaxuan Li
Hao Wu
Xiaotian Tie
Hongyu Li
Yuanyuan Zhang
author_sort Keda Chen
collection DOAJ
description COVID-19 has rapidly spread worldwide, posing significant challenges to public health systems. This review offers an in-depth examination of the mechanisms underlying susceptibility and associated clinical features, and treatment strategies associated with bacterial co-infections in COVID-19 patients. A structured review of the literature revealed that the overall rate of bacterial co-infection among COVID-19 patients is relatively low (6.9 %). However, the rate increases significantly in severe cases (8.1 %) and reaches as high as 23.5 % among ICU patients. Common pathogens include Staphylococcus aureus, Streptococcus pneumoniae, and Klebsiella species. These co-infections contribute to increased disease severity, complicate treatment, and elevate the risk of mortality. Meanwhile, the widespread use of antibiotics has further intensified antimicrobial resistance. In terms of clinical management, we propose the ''Four Antis and Two Balances'' approach, which includes antiviral therapy, anti-shock treatment, prevention of hypoxia, control of secondary infections, as well as maintaining electrolyte/acid-base balance and microecological stability. Emerging therapeutic strategies include antiviral agents, immunomodulators, artificial liver support systems, and cell-based therapies. Public health policy recommendations focus on antimicrobial stewardship programs, biomarker-guided antibiotic use, and investment in rapid diagnostic technologies. Elucidating the immunological, cellular, and molecular mechanisms underlying these interactions will be essential for advancing more targeted intervention strategies. This review provides evidence-based guidance for clinicians in the management of COVID-19 cases complicated by bacterial co-infections, and provides valuable insights for public health policy in addressing the dual challenge of COVID-19 and antimicrobial resistance.
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spelling doaj-art-9efbd7fccf6446eebcc516f2be035e532025-08-20T03:48:14ZengElsevierComputational and Structural Biotechnology Journal2001-03702025-01-01272107212210.1016/j.csbj.2025.05.033Dual threat: Susceptibility mechanisms and treatment strategies for COVID-19 and bacterial co-infectionsKeda Chen0Ruiqi Weng1Jiaxuan Li2Hao Wu3Xiaotian Tie4Hongyu Li5Yuanyuan Zhang6Key Laboratory of Artificial Organs and Computational Medicine in Zhejiang Province, Shulan International Medical College, Zhejiang Shuren University, Hangzhou 310015, PR ChinaKey Laboratory of Artificial Organs and Computational Medicine in Zhejiang Province, Shulan International Medical College, Zhejiang Shuren University, Hangzhou 310015, PR ChinaKey Laboratory of Artificial Organs and Computational Medicine in Zhejiang Province, Shulan International Medical College, Zhejiang Shuren University, Hangzhou 310015, PR ChinaZhejiang Chinese Medical University, Hangzhou 310053, PR ChinaZhejiang Chinese Medical University, Hangzhou 310053, PR ChinaKey Laboratory of Artificial Organs and Computational Medicine in Zhejiang Province, Shulan International Medical College, Zhejiang Shuren University, Hangzhou 310015, PR China; Corresponding authors.Children’s Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310052, PR China; Corresponding authors.COVID-19 has rapidly spread worldwide, posing significant challenges to public health systems. This review offers an in-depth examination of the mechanisms underlying susceptibility and associated clinical features, and treatment strategies associated with bacterial co-infections in COVID-19 patients. A structured review of the literature revealed that the overall rate of bacterial co-infection among COVID-19 patients is relatively low (6.9 %). However, the rate increases significantly in severe cases (8.1 %) and reaches as high as 23.5 % among ICU patients. Common pathogens include Staphylococcus aureus, Streptococcus pneumoniae, and Klebsiella species. These co-infections contribute to increased disease severity, complicate treatment, and elevate the risk of mortality. Meanwhile, the widespread use of antibiotics has further intensified antimicrobial resistance. In terms of clinical management, we propose the ''Four Antis and Two Balances'' approach, which includes antiviral therapy, anti-shock treatment, prevention of hypoxia, control of secondary infections, as well as maintaining electrolyte/acid-base balance and microecological stability. Emerging therapeutic strategies include antiviral agents, immunomodulators, artificial liver support systems, and cell-based therapies. Public health policy recommendations focus on antimicrobial stewardship programs, biomarker-guided antibiotic use, and investment in rapid diagnostic technologies. Elucidating the immunological, cellular, and molecular mechanisms underlying these interactions will be essential for advancing more targeted intervention strategies. This review provides evidence-based guidance for clinicians in the management of COVID-19 cases complicated by bacterial co-infections, and provides valuable insights for public health policy in addressing the dual challenge of COVID-19 and antimicrobial resistance.http://www.sciencedirect.com/science/article/pii/S2001037025001965COVID-19SARS-CoV-2Secondary bacterial infectionSusceptibility mechanismTreatment strategyImmune response
spellingShingle Keda Chen
Ruiqi Weng
Jiaxuan Li
Hao Wu
Xiaotian Tie
Hongyu Li
Yuanyuan Zhang
Dual threat: Susceptibility mechanisms and treatment strategies for COVID-19 and bacterial co-infections
Computational and Structural Biotechnology Journal
COVID-19
SARS-CoV-2
Secondary bacterial infection
Susceptibility mechanism
Treatment strategy
Immune response
title Dual threat: Susceptibility mechanisms and treatment strategies for COVID-19 and bacterial co-infections
title_full Dual threat: Susceptibility mechanisms and treatment strategies for COVID-19 and bacterial co-infections
title_fullStr Dual threat: Susceptibility mechanisms and treatment strategies for COVID-19 and bacterial co-infections
title_full_unstemmed Dual threat: Susceptibility mechanisms and treatment strategies for COVID-19 and bacterial co-infections
title_short Dual threat: Susceptibility mechanisms and treatment strategies for COVID-19 and bacterial co-infections
title_sort dual threat susceptibility mechanisms and treatment strategies for covid 19 and bacterial co infections
topic COVID-19
SARS-CoV-2
Secondary bacterial infection
Susceptibility mechanism
Treatment strategy
Immune response
url http://www.sciencedirect.com/science/article/pii/S2001037025001965
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