Once my older brother started school, he brought all the childhood illnesses home to us girls. The family doctor would come over and give us girls gamma globulin shots. Those were the days.
I on purpose exposed my kids to chicken pox. It was no big deal.
The only ‘big deal’ I remember is having a fever in the summer (measles) with no AC! I was probably 7 or 8 at the time & we didn’t get central air until we moved when I was a senior in HS. We didn’t even have AC window units in that first house, just little fans and I don’t think mom would let us turn on a fan when we were sick.
We were lucky when we were young to have a pediatrician who made house calls - he made mom feel better at least! Unfortunately, he was killed in a car wreck & the next pediatrician(s) was a group - no house calls.