Chicken pox, fortunately, is becoming less frequent in the US because we have an effective vaccination.
Before the chicken pox vaccine became widely available, about 4 million kids per year contracted chicken pox — and up to 100 died annually. Today, there are fewer than 10 deaths per year from chicken pox. According to the National Center for Health Statistics, the greatest reduction in deaths has been among children ages one to four.
To learn more you should go to a medical professional.
Keyword: chicken pox babies