How are the chicken pox vaccine and the shingles vaccine distinguished from each other?

Strength/target. The varicella (chickenpox) vaccine has the amount of weakened virus needed to trigger protective levels of antibodies in kids over 1 yr.It is often used for older kids and young adults, all receiving a 2 dose series. The shingles vaccine is made from the same weakened virus but contains a much stronger dose, as is necessary to provide protection for its target group of people > 50.