I've just found out that a girl who came to visit our 16 month-old daughter, 11 days ago, developed chickenpox rash the next day, which is a very infectious time. So if the incubation is on average 15 days, and the most infectious time is 48 hours before, is it risky to let her mix with other toddlers tomorrow?
Can I cling on to the hope that she won't get it, or is it a given?