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Comparison of clinical, serological, and radiological findings among hospitalized A-H1N1, B-H1N1, and H3N2 influenza patients
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  • Kiana Shirani,
  • Seyed Ali Hosseini,
  • Behrooz Ataei,
  • Alireza Ayatolahi,
  • Shoeleh Yaghoubi
Kiana Shirani
Isfahan University of Medical Sciences
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Seyed Ali Hosseini
Shiraz University of Medical Sciences
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Behrooz Ataei
Isfahan University of Medical Sciences
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Alireza Ayatolahi
Shahid Sadoughi University of Medical Sciences and Health Services
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Shoeleh Yaghoubi
Shiraz University of Medical Sciences
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Abstract

Background: Despite remarkable developments in medical science, viral infections still remain serious threats to the global health system. Methods: In this cross-sectional study, we retrospectively compared the clinical, serological, and radiological findings in subjects with confirmed A-H1N1, B- H1N1, or A-H3N2 virus infection. The investigation included data on influenza patients who were admitted to the Al-Zahra Hospital, Isfahan, Iran, from September 2017 to February 2018. Results and Conclusions: Based on statistical analysis, fever was present as the most common clinical manifestation in patients with the three subtypes of influenza. Notably, the fever temperature was much higher among A-H3N2 subjects than A-H1N1 and B-H1N1 subjects (P<0.05). The A-H3N2 patients also had significantly higher C-reactive protein (CRP) levels than the other two groups of influenza patients (P<0.05). In the chest computed tomography scans, patchy infiltration and middle lobe involvement were found more commonly among A-H3N2 patients (P=0.012 and P=0.021, respectively) than patients of the other two influenza subtypes. Our clinical observations, serological examinations, and radiological findings are likely to be beneficial in managing patients with influenza and determining the need for further interventions.