If COVID has taught us anything, it's that people should be wearing masks in all healthcare settings, COVID or not.
In addition, if you're coughing or experiencing any other symptoms and can't stay home, please ensure you wear a mask wherever you go.
It doesn't matter if it's COVID or not, it's a matter of respect to try to do everything within your power to not expose others to whatever you may have.
If someone can boost this until the unmasked man at the airport with the hacking cough sees this, it would be greatly appreciated.