COVID-19 and flu are both contagious respiratory illnesses but they are caused by different viruses.COVID-19 is caused by infection with a new coronavirus (called SARS-CoV-2) and flu is caused by
COVID-19 and flu are both contagious respiratory illnesses but they are caused by different viruses.COVID-19 is caused by infection with a new coronavirus (called SARS-CoV-2) and flu is caused by
What is influenza ? Influenza is commonly known as flu. It is a viral infection of the respiratory system. Flu is caused by different strains of viruses and attacks the nose ,