For close to 20 years, I felt personally responsible for the health habits of approximately 155, 000 people in southern Wisconsin.  Sound strange? It may seem so, but as a health educator, I promoted prevention for entire populations of people.
To understand this concept, think about a nurse who gives a child a single vaccination. This child will surely benefit from the protection that the vaccine will offer him or her. Now consider the goal of the health educator – making sure that all parents/guardians in his or her jurisdiction understand the importance of having their children fully immunized against
