CURRENT IMMUNIZATION METHODS AND PRECAUTIONS.

The more commonly used immunizing agents appear to be safe and remarkably effective when administered according to the present routines. The most serious deficiency at the present in the prevention of pertussis, diphtheria, tetanus, smallpox, and measles lies, not in ineffective antigens, but in administration of the present antigens to a larger proportion of the population. It is expected that appropriate sampling techniques will define areas of poor vaccine utilization in many communities. Proper coordination of immunization efforts in each community should result in a more satisfactory level of immunization.