Haemophilus influenzae type b: the search for a vaccine.

Abstract

In adults Hib CPS protein conjugates are much more immunogenic than the polysaccharide alone; further studies have shown that they induce a booster response in children. The antibodies produced in response to the conjugates have the same biologic properties, isotype and IgG subclass composition as those elicited by Hib CPS alone or those present in serum after convalescence from Hib disease. More recently attempts have been made to make the conjugates compatible with DTP vaccine. In this procedure DTP is absorbed onto aluminum compounds (aluminum hydroxide or phosphate), with the effect of significantly prolonging diphtheria and tetanus antibody synthesis. Adsorption of the Hib CPS conjugate under controlled conditions does not alter the total amount of antibody elicited in infant rhesus monkeys after the third or final injection. The appearance of Hib CPS antibodies after the first injection, however, is accelerated with conjugate that has been adsorbed. This is an encouraging finding, because it means that more polysaccharide conjugates can be compatible with existing DTP vaccine.

• Authors: J B Robbins, R Schneerson
• Journal: The Pediatric infectious disease journal (Pediatr Infect Dis J) Vol. 6 Issue 8 Pg. 791-4 (Aug 1987) ISSN: 0891-3668 [Print] United States
• PMID: 3313243 (Publication Type: Journal Article, Review)

Chemical References

• Antibodies, Bacterial
• Bacterial Vaccines
• Haemophilus Vaccines
• Haemophilus influenzae type b polysaccharide vaccine
• Polysaccharides, Bacterial

Topics

• Antibodies, Bacterial (biosynthesis)
• Bacterial Capsules
• Bacterial Vaccines
• Child, Preschool
• Haemophilus Infections (prevention & control)
• Haemophilus Vaccines
• Haemophilus influenzae (immunology)
• Humans
• Infant
• Meningitis, Haemophilus (prevention & control)
• Polysaccharides, Bacterial (immunology)