Listen, Lady

I understand you were sick and didn't realize it at first and that makes one prone to risky behavior-
but you're in my territory now and this isn't negotiable:

You cannot go to work with an active pulmonary pneumonia diagnosis.   I don't care if you're running for President, and it's 9-11. You cannot go out in public with Pneumonia.   Especially if your job is MEETING AND GREETING PEOPLE.

Seriously, WTF?