First of all she wasn't hiring this woman to be an in home care taker but a general worker, like a handi-person is a general worker and not a plumber or any specific crafts person.

Second, stress can reduce a person's immune response to external pathogens and yes she can get a cold and even viruses if her immunity is compromised.

Third of all, calling someone whinny because that's how you perceive them doesn't make them whiny, it makes you inability to see individuals.

And, the list could go on from there...