My ex-wife is a survivor of childhood ALL and her early childhood was the antithesis of that described by the study. She was the 4th of 4 kids each having been

My ex-wife is a survivor of childhood ALL and her early childhood was the antithesis of that described by the study. She was the 4th of 4 kids each having been born about 18 months apart. So she was exposed to the germs of 3 young siblings. Her parents were also very socially active, so she was also frequently exposed to the germs of the young children of those in her parents social circles. Please take this study with a grain of salt and don't beat yourself up based upon it.