[nudephil (OP)]

Here's a question sent in by Pam:

My daughter is a violin teacher at a private school in South Africa where coronavirus infections are increasing. She has been told to return to the school to teach in two weeks. Her classroom is about 3m x 1.65m with a door and no windows. She uses a mask plus shield, but is concerned about teaching in such a small space and being infected, then passing it on to me (I have chronic lung disease). She asked to teach outside, as she thinks that might be safer, but the school isn't keen on this idea. Can you tell me if there would be any advantage to her teaching outside rather than in the small, poorly ventilated classroom, with regard to infection?

Any thoughts?