Just a small comment on the chicken pox thread:
Normally, though by no means unilaterally, each child in a family to get
chicken pox will get it worse than the one before him/her.  This is because
the longer one is exposed, the worse the case (usually).

Breastfed babies are usually well protected against diseases like chicken
pox, but that doesn't mean that they won't get it at all.  However, they
usually (although, again, there are exceptions) come down with a
milder-than-expected case, regardless of the fact that they were exposed to
it longer than their older sibling(s) had been.

Marla Peers