Brewing when sick person is on premises

I brew at home, where quite a few other persons live too. One of them has catched a common cold. Is there risk of sick person contaminating batch and if such a risk exists could common cold or similar mild infection causing viruses and/ or bacteria survive in wort post boil and if they do, how long could they survive?

Usually I have postponed brewing or any other brew related activities at such an event, but as spring is coming quite early this year, I'm running out of brewing season.