has function has role immunizes against disease immunizes recipient immunizes against pathogen has drug dose form haemophilus meningitis Homo sapiens FDA licensed vaccine role preventive vaccine function conjugate vaccine role Haemophilus influenzae serotype b Haemophilus influenzae b (Ross strain) capsular polysaccharide Meningococcal Protein Conjugate Vaccine Injection 0.5 ML Haemophilus influenzae b (Ross strain) capsular polysaccharide Meningococcal Protein Conjugate Vaccine 0.265 MG/ML Injection http://purl.bioontology.org/ontology/RXNORM/798447 798447 Oliver He 0.5 ML Haemophilus influenzae b (Ross strain) capsular polysaccharide meningococcal protein conjugate vaccine 0.265 MG/ML Injection Haemophilus b conjugate vaccine (meningococcal protein conjugate) 0.5 ML Injection 530009 vaccine Khadeejah Khan injection form