Herpes Zoster Vaccination and Dementia Occurrence

Michael Pomirchy, Christian Bommer, Fabienne Pradella, Felix Michalik, Ruth Peters, Pascal Geldsetzer

IMPORTANCE: Recent evidence from a quasi-experiment in Wales showed that herpes zoster (HZ) vaccination appears to prevent or delay dementia. Exploiting a similar quasi-experiment in Australia, this study investigated the effect of HZ vaccination on dementia occurrence in a different population and health system setting.