Prevalence of Bacterial Coinfection and Patterns of Antibiotics Prescribing in Patients with COVID-19: A Systematic Review and Meta-analysis
Overview
Affiliations
Background: Evidence around prevalence of bacterial coinfection and pattern of antibiotic use in COVID-19 is controversial although high prevalence rates of bacterial coinfection have been reported in previous similar global viral respiratory pandemics. Early data on the prevalence of antibiotic prescribing in COVID-19 indicates conflicting low and high prevalence of antibiotic prescribing which challenges antimicrobial stewardship programmes and increases risk of antimicrobial resistance (AMR).
Aim: To determine current prevalence of bacterial coinfection and antibiotic prescribing in COVID-19 patients.
Data Source: OVID MEDLINE, OVID EMBASE, Cochrane and MedRxiv between January 2020 and June 2021.
Study Eligibility: English language studies of laboratory-confirmed COVID-19 patients which reported (a) prevalence of bacterial coinfection and/or (b) prevalence of antibiotic prescribing with no restrictions to study designs or healthcare setting.
Participants: Adults (aged ≥ 18 years) with RT-PCR confirmed diagnosis of COVID-19, regardless of study setting.
Methods: Systematic review and meta-analysis. Proportion (prevalence) data was pooled using random effects meta-analysis approach; and stratified based on region and study design.
Results: A total of 1058 studies were screened, of which 22, hospital-based studies were eligible, compromising 76,176 of COVID-19 patients. Pooled estimates for the prevalence of bacterial co-infection and antibiotic use were 5.62% (95% CI 2.26-10.31) and 61.77% (CI 50.95-70.90), respectively. Sub-group analysis by region demonstrated that bacterial co-infection was more prevalent in North American studies (7.89%, 95% CI 3.30-14.18).
Conclusion: Prevalence of bacterial coinfection in COVID-19 is low, yet prevalence of antibiotic prescribing is high, indicating the need for targeted COVID-19 antimicrobial stewardship initiatives to reduce the global threat of AMR.
Reducing blood culture contamination: an environmental imperative.
Gregg S, Purcell N, Doyle M, Chan G Access Microbiol. 2025; 7(2).
PMID: 40018270 PMC: 11865496. DOI: 10.1099/acmi.0.000897.v3.
Madronero L, Calvo E, Coronel-Ruiz C, Velandia-Romero M, Calderon-Pelaez M, Arturo J Sci Rep. 2025; 15(1):4490.
PMID: 39915668 PMC: 11802917. DOI: 10.1038/s41598-025-88518-y.
Global trends in antibiotic consumption during 2016-2023 and future projections through 2030.
Klein E, Impalli I, Poleon S, Denoel P, Cipriano M, Van Boeckel T Proc Natl Acad Sci U S A. 2024; 121(49):e2411919121.
PMID: 39556760 PMC: 11626136. DOI: 10.1073/pnas.2411919121.
Kalungia A, Kampamba M, Banda D, Bambala A, Marshall S, Newport M JAC Antimicrob Resist. 2024; 6(6):dlae178.
PMID: 39502743 PMC: 11535659. DOI: 10.1093/jacamr/dlae178.
A quasi-experimental analysis comparing antimicrobial usage on COVID-19 and non-COVID-19 wards.
Doyle D, Dalton B, Zhang Z, Sabuda D, Rajakumar I, Rennert-May E Antimicrob Steward Healthc Epidemiol. 2024; 4(1):e192.
PMID: 39483329 PMC: 11526180. DOI: 10.1017/ash.2024.417.