One of the benefits frequently cited about having a nanny is that they can take care of your DC even when they are sick. But does this even apply to contagious stuff like D&V? And is it different if the nanny brings their own child? For example, I imagine most nannies would be fine caring for a charge with chickenpox but what if their own child hasn't been exposed yet? Just trying to get a sense of what is reasonable to expect of our nanny before the scenario arises...