Immunization--some current problems.
D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D007252:Influenza Vaccines; D008458:Measles Vaccine; D010567:Pertussis Vaccine; D011055:Poliovirus Vaccine, Oral; D011247:Pregnancy; D011251:Pregnancy Complications, Infectious / Q000209:etiology; D012411:Rubella Vaccine; D014611:Vaccination / Q000009:adverse effects
D007252:Influenza Vaccines; D008458:Measles Vaccine; D010567:Pertussis Vaccine; D011055:Poliovirus Vaccine, Oral; D012411:Rubella Vaccine