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Coronaviridae is a family of viruses with a positive-sense RNA that possess an outer viral coat. When looked at with the help of an electron microscope, there appears to be a unique corona around it. This family of viruses mainly cause respiratory diseases in humans, in the forms of common cold or pneumonia as well as respiratory infections. These viruses can infect animals as well. All the parameters like D-dimer, ferritin, LDH and CRP was found to be elevated in patients of HRCT severity score of 15-25 to wide extent when compared to severity of 1-7 and 7-14, and males were prone to high infection when compared to females because of their life style like smoking, alcohol, tobacco.