“…1, These studies were further divided into three categories: (1) definition of the term PHI; 69 (2) type of public health surveillance (PHS) systems and implications for public health (23 studies); 13,14,19,21-23,25,27,29,32,34,41,44,45,47-49, 55,58,61,65,67,71 and (3) electronic surveillance systems functionality, capability, training, and challenges (37 studies). 1,[15][16][17][18]20,24,[26][27][28]30,31,33,[35][36][37][38][39][40]42,43,46,[50][51][52][53][54][55][56][57][58][59][60][62][63][64]66,[68][69][70] See Tables 1 and 2 for details.…”