Prevention of illness is a function of both the doctor and the person. Most preventive medication rehearsed today is performed by the essential consideration physician, not by the different public health authorities or teachers in college divisions of preventive medication. Exemptions are the grassland regions and British Columbia where the majority of inoculation methods, one of the more clear types of counteraction, are completed by health units. In other regions inmmunization is basically embraced by the essential consideration doctor. This is an aloof kind of anticipation for the person: he just has to introduce himself for the injection.