In my opinion, it is useless to vaccinate children against varicella [chickenpox] and adults against zoster—-see below and draw your own conclussion

What this study adds [published in the BMJ]

  • In this self controlled case series study of UK adults with both household exposure to varicella and an episode of zoster, strong evidence suggests that exposure to varicella is associated with a reduction in risk of zoster by around 30% over 20 years
  • These findings cannot be used to justify for or against specific vaccination schedules
  • They do, however, suggest that previous mathematical models, estimating the effect of exogenous boosting in childhood varicella vaccination policy in the UK, that assume complete immunity for between two and 20 years may need revisiting