has role immunizes against disease immunizes recipient immunizes against pathogen haemophilus meningitis tetanus diphtheria hepatitis B poliomyelitis Hepatitis B virus Enterovirus C Clostridium tetani Corynebacterium diphtheriae Homo sapiens combination vaccine role Poliovirus vaccine Diphtheria-Tetanus vaccine Haemophilus influenzae serotype b Haemophilus b and Hepatitis B vaccine Diphtheria-Tetanus-Poliovirus-Haemophilus B-Hepatitis B vaccine DT+IPV+HIB+HEPB vaccine vaccine