― Discomfort occurred Saturday afternoon. You felt a little something in the back of the throat. Then it became painful. You do not pay attention to this irritation by saying that it would disappear by itself. Now you try to prepare yourself to go to work like every Monday morning. Your whole body is sore, you have a fever, and coughing and you struggle against fatigue despite a good night's sleep. You think you have the flu (caused by influenza virus). ∙ But you must give the report at [...].