Prevalence of Influenza Viruses A and B in Seasonal Flu : A Tertiary Care Hospital Study
Velamuri Abhishek*, Sukrutha Gopalareddy and Shiva Priya Eswaran
Department of Microbiology, Krishna Institute of Medical Sciences, Secunderabad, India
*Corresponding author
Abstract:
Influenza is a public health problem and one among global threats. Influenza is viral infection leading to morbidity and mortality proving itself to be fatal during outbreaks. Understanding the pathogenesis of influenzae virus helps in framing a preventive strategy. This has become cumbersome due to the genetic mutations resulting in evolution of multiple strains. So, appropriate management of influenza is of utmost importance in curbing and combating the ill effects during any pandemic. Total 2010 appropriate swabs (nasopharyngeal and oropharyngeal swabs) were collected of the upper respiratory system from the inpatient and outpatient departments were collected from March 2023 to and Feb 2025 retrospectively. Swabs were sent in the viral transport media (VTM). Patient demographic details were collected. Concentration of extracted RNA was then measured with nanodrop software. And later was processed for RT PCR as per CDC guidelines. Microbiological reports were evaluated. Demographic details of positive patients were analysed using descriptive statistics. Out of 2010 a total of 1066 males and 944 females were included. Among which 582 patients were positive for the influenza virus with a total prevalence of n = 29.1 %; 20.2 % (n=59) of the cases were infected with H1N1 influenza virus, 19.93 % (n=58) of the cases were infected with H3N2 influenza virus. Among 2010 patients, influenza was detected in 30.3 % (n=308) females and 27.33% (n=274) males. Among the detected swabs, majority of the 14.0 % (n=141) samples were positive for influenza A which coincided with the study (19) with 3.28 % (n=33) influenzae B, 5.87% (n=59) of H1N1 and 5.77% (n=58) H3N2. A total prevalence of influenza was observed in the study with 21%.
Keywords: Influenza Viruses A and B, Seasonal Flu, RT PCR, H1N1 influenza virus, H3N2, Pandemic
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How to cite this article:
Velamuri Abhishek, Sukrutha Gopalareddy and Shiva Priya Eswaran. 2025. Prevalence of Influenza Viruses A and B in Seasonal Flu : A Tertiary Care Hospital Study.
Int.J.Curr.Microbiol.App.Sci. 14(3): 172-179. doi:
https://doi.org/10.20546/ijcmas.2025.1403.020
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National Academy of Agricultural Sciences (NAAS) 
