vaccination true ICD10:Z27 ICD10:Z26 ICD10:Z25 ICD10:Z24 obo:VO_0000002 Dani Welter SNOMEDCT:33879002 MESH:D014611 A process that involves adding vaccine into a host (e.g., human, mouse) in vivo with the intent to invoke a protective immune response. active immunization NCIt:C15346 planned process