Hib Vaccines: Past, Present, and Future Perspectives

Haemophilus influenzae type b (Hib) causes many severe diseases, including epiglottitis, pneumonia, sepsis, and meningitis. In developed countries, the annual incidence of meningitis caused by bacteria is approximately 5–10 cases per population of 100,000. The Hib conjugate vaccine is considered pro...

Full description

Saved in:
Bibliographic Details
Main Authors: Adi Essam Zarei, Hussein A. Almehdar, Elrashdy M. Redwan
Format: Article
Language:English
Published: Wiley 2016-01-01
Series:Journal of Immunology Research
Online Access:http://dx.doi.org/10.1155/2016/7203587
Tags: Add Tag
No Tags, Be the first to tag this record!
_version_ 1832567992740741120
author Adi Essam Zarei
Hussein A. Almehdar
Elrashdy M. Redwan
author_facet Adi Essam Zarei
Hussein A. Almehdar
Elrashdy M. Redwan
author_sort Adi Essam Zarei
collection DOAJ
description Haemophilus influenzae type b (Hib) causes many severe diseases, including epiglottitis, pneumonia, sepsis, and meningitis. In developed countries, the annual incidence of meningitis caused by bacteria is approximately 5–10 cases per population of 100,000. The Hib conjugate vaccine is considered protective and safe. Adjuvants, molecules that can enhance and/or regulate the fundamental immunogenicity of an antigen, comprise a wide range of diverse compounds. While earlier developments of adjuvants created effective products, there is still a need to create new generations, rationally designed based on recent discoveries in immunology, mainly in innate immunity. Many factors may play a role in the immunogenicity of Hib conjugate vaccines, such as the polysaccharides and proteins carrier used in vaccine construction, as well as the method of conjugation. A Hib conjugate vaccine has been constructed via chemical synthesis of a Hib saccharide antigen. Two models of carbohydrate-protein conjugate have been established, the single ended model (terminal amination-single method) and cross-linked lattice matrix (dual amination method). Increased knowledge in the fields of immunology, molecular biology, glycobiology, glycoimmunology, and the biology of infectious microorganisms has led to a dramatic increase in vaccine efficacy.
format Article
id doaj-art-4441da8cfc3d455eb508479ffd4bf04c
institution Kabale University
issn 2314-8861
2314-7156
language English
publishDate 2016-01-01
publisher Wiley
record_format Article
series Journal of Immunology Research
spelling doaj-art-4441da8cfc3d455eb508479ffd4bf04c2025-02-03T00:59:57ZengWileyJournal of Immunology Research2314-88612314-71562016-01-01201610.1155/2016/72035877203587Hib Vaccines: Past, Present, and Future PerspectivesAdi Essam Zarei0Hussein A. Almehdar1Elrashdy M. Redwan2Biological Sciences Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi ArabiaBiological Sciences Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi ArabiaBiological Sciences Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi ArabiaHaemophilus influenzae type b (Hib) causes many severe diseases, including epiglottitis, pneumonia, sepsis, and meningitis. In developed countries, the annual incidence of meningitis caused by bacteria is approximately 5–10 cases per population of 100,000. The Hib conjugate vaccine is considered protective and safe. Adjuvants, molecules that can enhance and/or regulate the fundamental immunogenicity of an antigen, comprise a wide range of diverse compounds. While earlier developments of adjuvants created effective products, there is still a need to create new generations, rationally designed based on recent discoveries in immunology, mainly in innate immunity. Many factors may play a role in the immunogenicity of Hib conjugate vaccines, such as the polysaccharides and proteins carrier used in vaccine construction, as well as the method of conjugation. A Hib conjugate vaccine has been constructed via chemical synthesis of a Hib saccharide antigen. Two models of carbohydrate-protein conjugate have been established, the single ended model (terminal amination-single method) and cross-linked lattice matrix (dual amination method). Increased knowledge in the fields of immunology, molecular biology, glycobiology, glycoimmunology, and the biology of infectious microorganisms has led to a dramatic increase in vaccine efficacy.http://dx.doi.org/10.1155/2016/7203587
spellingShingle Adi Essam Zarei
Hussein A. Almehdar
Elrashdy M. Redwan
Hib Vaccines: Past, Present, and Future Perspectives
Journal of Immunology Research
title Hib Vaccines: Past, Present, and Future Perspectives
title_full Hib Vaccines: Past, Present, and Future Perspectives
title_fullStr Hib Vaccines: Past, Present, and Future Perspectives
title_full_unstemmed Hib Vaccines: Past, Present, and Future Perspectives
title_short Hib Vaccines: Past, Present, and Future Perspectives
title_sort hib vaccines past present and future perspectives
url http://dx.doi.org/10.1155/2016/7203587
work_keys_str_mv AT adiessamzarei hibvaccinespastpresentandfutureperspectives
AT husseinaalmehdar hibvaccinespastpresentandfutureperspectives
AT elrashdymredwan hibvaccinespastpresentandfutureperspectives