My friend has a problem with her cough reflex, she can have some pretty bad coughing fits, it can be triggered by anything, since the coronavirus has been in the news a lot she has become really worried and self conscious about eating out in the pub in case she has a coughing fit. just saying really that a lot of people have coughs for different reasons, I would imagine if the person had the coronavirus they would probably be feeling too unwell or feverish to be in the bar to start with!