Seasonal illnesses include the cold, flu, and allergies that occur at a certain time of year. What do seasonal allergies and COVID-19 have in common? The answer is shared symptoms. How do you know that your chills, fever, cough, and body aches are symptoms of seasonal illnesses versus infection with the novel coronavirus? The frightening truth is that you may not be able to easily tell. However, you don’t have to guess if you ...