Immune modulation after measles vaccination of 6–9 months old Bangladeshi infants
| Autor: | Sibylle Schneider-Schaulies, J J Schnorr, Tasnim Azim, Felicity T. Cutts, S M Akramuzzaman, Volker ter-Meulen, J. G. Wheeler, M.Samiul Alam |
|---|---|
| Rok vydání: | 2001 |
| Předmět: |
Male
Measles Vaccine In Vitro Techniques Antibodies Viral Lymphocyte Activation Measles Immune system Antigen Humans Medicine Hypersensitivity Delayed Immunization Schedule Bangladesh General Veterinary General Immunology and Microbiology business.industry Immunogenicity Public Health Environmental and Occupational Health Infant medicine.disease Vaccination Infectious Diseases Measles virus Delayed hypersensitivity Immunology Cytokines Interleukin-2 Molecular Medicine Female Measles vaccine Viral disease business |
| Zdroj: | Vaccine. 19:1503-1510 |
| ISSN: | 0264-410X |
| DOI: | 10.1016/s0264-410x(00)00349-2 |
| Popis: | Measles still causes high mortality in children younger than 1 year of age. Administration of high titre measles vaccines before 7 months of age led to increased overall mortality, raising questions as to the immunological effects of measles vaccine in young infants. We investigated the immune response to standard titre vaccines given to children in Bangladesh in a single dose at age 9 months, or two doses at 6 and 9 months. Of the children vaccinated at age 9 months, 95% serocoverted, compared with 70% at age 6 months. Delayed-type-hypersensitivity reactions to candida antigen were significantly reduced in both vaccine groups at 6 weeks post-vaccination, but responses to other recall antigens studied were not significantly different from controls. In both vaccine groups, peripheral blood lymphocytes isolated at 6 and 24 weeks after vaccination showed significantly higher expression of activation markers upon in vitro stimulation, and a sustained increase in IL-2 production. These findings suggest prolonged immune activation after measles vaccination at the same time as some reduction in delayed hypersensitivity responses. Further study of the clinical effects of these changes is warranted. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect