Respiratory system is the answer
Listen without interrupting the patient. Speak slowly, clearly and loudly. Use short, simple words and sentences. Stick to one topic at a time.
Because you won’t be able to see right, you can be dizzy and not seeing things right
Because some could cause an outbreak but some such as lets say pneumonia or bronchitis isn’t really contagious and therefore it won’t start a widespread pandemic i literally made that up so if it’s right then YUP