MacDonald, N E Can meningococcal C conjugate vaccine overcome immune hyporesponsiveness induced by previous administration of plain polysaccharide vaccine? [electronic resource] - JAMA Apr 2000 - 1826-7 p. digital Publication Type: Letter; Comment ISSN: 0098-7484 Standard No.: 10.1001/jama.283.14.1826 doi Subjects--Topical Terms: Antibodies, Bacterial--bloodBacterial Vaccines--immunologyHumansImmunoglobulin G--bloodInfantMeningococcal Infections--immunologyMeningococcal VaccinesNeisseria meningitidis--immunologyVaccines, Conjugate--immunology