Immune status of children one to four years of age as determined by history and antibody measurement.

Age Factors Antibodies/analysis Antibodies, Viral/analysis Child, Preschool Diphtheria Antitoxin/analysis Health Surveys Humans Immunity Immunization Immunization Schedule Immunization, Secondary Infant Measles virus/immunology Medical Records Ohio Poliomyelitis/immunology Poliovirus/immunology Poliovirus Vaccine, Oral Rubella/immunology Rubella virus/immunology Surveys and Questionnaires Tetanus Antitoxin/analysis Urban Population

Antibodies Antibodies, Viral Diphtheria Antitoxin Poliovirus Vaccine, Oral Tetanus Antitoxin