I was looking at some of my prenatal Dr. appointment notes last night. I had them because we went to TX when I was 12w pregnant and the Dr. insisted that I take my file up until that point.
Anyway, one thing on there was "unusal illnesses." I was shocked to see Chicken Pox listed under that category. I guess it is strange for kids to get it now but it was definitely normal when I had them (back in 1986).