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An overview of coronavirus disease (covid-19)

Authors:Emy Jancy Rani J.
Int J Biol Med Res. 2023; 14(4): 7687-7691  |  PDF File  |  DOI No.: 11.2023-31157324

Abstract

This case series focuses on the frequency of symptoms in COVID-19 in comparison to SARS, influenza and common cold. The emergence of severe acute respiratory syndrome in late 2002 and the recent outbreaks of avian influenza in Asia are timely reminders of the ever present risks from respiratory viral diseases. Influenza is a descriptive term for respiratory epidemic disease presenting with cough and fever. Influenza viruses are probably the most important of the pathogens that cause this condition. Clinical influenza occurs almost every winter in England and Wales and the outbreaks last 8-10 weeks. In recent years, influenza B virus outbreaks have occurred in January and February, whereas influenza H3N2 virus outbreaks have generally started long before Christmas. Influenza H3N2 virus outbreaks pressurize health service resources in winter more than influenza B viruses, that do not have the same impact in elderly people.