“…The included studies were from Asia ( n = 44), Northern America ( n = 20), Europe ( n = 13) and the Middle East ( n = 3). Most studies were from Taiwan ( n = 30) [ 40 , 41 , 43 , 44 , 50 , 54 , 58 – 63 , 68 , 76 – 79 , 81 , 83 – 85 , 87 , 90 , 96 – 98 , 100 , 104 , 105 , 115 ] and the US ( n = 19) [ 36 , 37 , 39 , 46 , 47 , 55 , 57 , 64 , 73 , 75 , 80 , 88 , 89 , 99 , 101 , 102 , 106 , 112 , 113 ]. In sum a total study population of 796,796,295 was included, with 10,904,736 HZ cases reported in the included studies.…”