Figure 3

The effectiveness of Zostavax for preventing HZ, burden of illness and PHN among different age groups [38]. The light grey bar represents the vaccine effectiveness on the incidence of herpes zoster, the burden of illness and postherpetic neuralgia of the total study population. The white bar represents the vaccine effectiveness on the incidence of herpes zoster, the burden of illness and postherpetic neuralgia for those aged 60–69 years. The dark grey bar represents the vaccine effectiveness on the incidence of herpes zoster, the burden of illness and postherpetic neuralgia for those 70 years and older.