[northfifeduckling]

MIL probably just has a tummy bug which just does the rounds at the schools and tries to pin it on you. If she wants to be sure she can give a sample to the doctor to have it tested   

[gavo]

A friend of mine does commercial free eggs 8000 birds and they are not allowed to wash ;i've been there when they collect the eggs i've even helped on occasion and they are very clean the nest boxes are not as comfy as we would provide and they don't stay in there long and being covered boxes mess doesn't get in.