摘要 : Background. The "exogenous boosting hypothesis" postulates that reexposure to circulating varicella zoster virus (VZV) over the life span inhibits reactivation of VZV. Consequently, if circulation of VZV is suppressed by introduct... 展开 Background. The "exogenous boosting hypothesis" postulates that reexposure to circulating varicella zoster virus (VZV) over the life span inhibits reactivation of VZV. Consequently, if circulation of VZV is suppressed by introduction of chickenpox vaccination, incidences of herpes zoster may rise. 收起