title: Need for monitoring vaccinated populations for immunity levels.
mesh_terms: D000293:Adolescent; D000328:Adult; D000914:Antibodies, Viral; D002648:Child; D002675:Child, Preschool; D003140:Communicable Disease Control; D006306:Health Surveys; D006801:Humans; D007109:Immunity; D007223:Infant; D008457:Measles / Q000276:immunology / Q000517:prevention & control; D008458:Measles Vaccine; D009107:Mumps / Q000276:immunology / Q000517:prevention & control; D009108:Mumps Vaccine; D011051:Poliomyelitis / Q000276:immunology / Q000517:prevention & control; D011054:Poliovirus Vaccine, Inactivated; D011159:Population Surveillance; D012409:Rubella / Q000276:immunology / Q000517:prevention & control; D012411:Rubella Vaccine; D014481:United States; D014611:Vaccination
chemical_list: D000914:Antibodies, Viral; D008458:Measles Vaccine; D009108:Mumps Vaccine; D011054:Poliovirus Vaccine, Inactivated; D012411:Rubella Vaccine