The shingles vaccine is basically the same as the chicken pox vaccine ie based on the same virus, varicella zoster, but it is more potent. It is used in adults over 60, in some countries, and possibly in the future in the UK. The less potent chicken pox vaccine is used for children and younger adults who have not had ch. pox. I have read that the possible increase in shingles in the older population would last for about 50 years. ie as generations of vaccinated children grow up they will not be susceptible to shingles having never contracted the virus in the 1st place. Eventually the virus could be eradicated... in theory. The problem, as with all vaccines, is getting enough of the population vaccinated. It worked with small pox.....