discusses a public health strategy in addressing child abuse. What do the authors mean by a public health strategy?

QUESTION DESCRIPTION

Chapter Twenty discusses a public health strategy in addressing child abuse. What do the authors mean by a public health strategy?  How can a public health strategy support at-risk students?  Is policy alone enough to prevent child abuse?  How effective is policy without practice?  When it comes to parenting and the prevention of child abuse, where do the responsibilities of the education system began and end?  How and when would you implement a parenting program or child abuse prevention program?

Needs to be at least one to two paragraphs……Thanks