A medical specialist is appointed as a trainer to a newly developed hospital for treating COVID-19 patients. In the very first training session the doctor introduces himself in the following way; I Am Dr. Akif. I will train you how to manage and treat Corona patients. This training will last for 3 days. The training includes all the health and safety procedures that must be followed while interacting with the corona patients. The body temperature of all the staff, on duty, must be checked right before and after the duty hours. Any of the staff with temperature 99 degrees or above will be reported and isolated for 14 days. All the staff must have to wear the helmet shields, masks and gloves before starting duties; if the staff does not take these precautions they will also get infected. Any of the staff member found without mask, gloves or helmets during working hours will be marked and called for explanation i.e. the Staff can only perform duties in a specialized kit. A person then asked a staff member in the hospital that: Am I allowed entering into the ward, dedicated for COVID-19 patients only? The staff replies: You can only get into the ward if and only if you are a staff member and have been trained for this subject. f) Prove that the person can get into the ward.