Coronaviruses are a family of viruses. Influenza belongs to a different family of viruses called Orthomyxoviridae. Saying that covid-19 is a strain of flu is

Coronaviruses are a family of viruses. Influenza belongs to a different family of viruses called Orthomyxoviridae. Saying that covid-19 is a strain of flu is like saying that lions are a form of dog.