This booklet addressed to parents provides information on seven serious childhood diseases and the vaccines that can provide protection for each. A description of the causes, symptoms, natural course and possible complications of each of the seven diseases--measles, polio, rubella or German measles, mumps, diptheria, pertussis or whooping cough, and tetanus--is followed by information on appropriate vaccination. The possible side effects of vaccination for each disease are dealt with in some detail. A suggested immunization schedule is included. (CM)