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Original Article
- Pulmonary
- The frequency and seasonal distribution of viral infection in patients with community-acquired pneumonia and its impact on the prognosis
- Kyung Jun Kim, Doh Hyung Kim
- Acute Crit Care. 2022;37(4):550-560. Published online October 6, 2022
- DOI: https://doi.org/10.4266/acc.2022.00682
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- 1 Web of Science
- 3 Crossref
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Abstract
PDF - Background
Studies on the effects of viral coinfection on bacterial pneumonia are still scarce in South Korea. This study investigates the frequency and seasonal distribution of virus infection and its impact on the prognosis in patients with community-acquired pneumonia (CAP).
Methods
The medical records of CAP patients with definite etiology, such as viruses and bacteria, were retrospectively reviewed. Their epidemiologic and clinical characteristics, microbiologic test results, the severity of illness, and 30-day mortality were analyzed.
Results
Among 150 study subjects, 68 patients (45.3%) had viral infection alone, 47 (31.3%) had bacterial infection alone, and 35 (23.3%) had viral-bacterial coinfection, respectively. Among 103 patients with viral infections, Influenza A virus (44%) was the most common virus, followed by rhinovirus (19%), influenza B (13%), and adenovirus (6%). The confusion-urea-respiratory rateblood pressure-age of 65 (CURB-65) score of the viral-bacterial coinfection was higher than that of the viral infection (median [interquartile range]: 2.0 [1.0–4.0] vs. 2.0 [0.3–3.0], P=0.029). The 30-day mortality of the viral infection alone group (2.9%) was significantly lower than that of bacterial infection alone (19.1%) and viral-bacterial coinfection (25.7%) groups (Bonferroni-corrected P<0.05). Viral-bacterial coinfection was the stronger predictor of 30-day mortality in CAP (odds ratio [OR], 18.9; 95% confidence interval [CI], 3.0–118.3; P=0.002) than bacterial infection alone (OR, 6.3; 95% CI, 1.1–36.4; P=0.041), compared to viral infection alone on the multivariate analysis.
Conclusions
The etiology of viral infection in CAP is different according to regional characteristics. Viral-bacterial coinfection showed a worse prognosis than bacterial infection alone in patients with CAP. -
Citations
Citations to this article as recorded by
- Clinical characteristics of pathogens in children with community-acquired pneumonia were analyzed via targeted next-generation sequencing detection
Junhua Zhao, Mingfeng Xu, Zheng Tian, Yu Wang
PeerJ.2025; 13: e18810. CrossRef - Comparing viral, bacterial, and coinfections in community-acquired pneumonia, a retrospective cohort study
Frederike Waldeck, Solveig Lemmel, Marcus Panning, Nadja Käding, Andreas Essig, Gernot Rohde, Mathias W. Pletz, Martin Witzenrath, Sebastien Boutin, Jan Rupp
International Journal of Infectious Diseases.2025; 154: 107841. CrossRef - Seasonal Patterns of Common Respiratory Viral Infections in Immunocompetent and Immunosuppressed Patients
Fotis Theodoropoulos, Anika Hüsing, Ulf Dittmer, Karl-Heinz Jöckel, Christian Taube, Olympia E. Anastasiou
Pathogens.2024; 13(8): 704. CrossRef
- Clinical characteristics of pathogens in children with community-acquired pneumonia were analyzed via targeted next-generation sequencing detection
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