Journal
CLINICAL AND VACCINE IMMUNOLOGY
Volume 17, Issue 2, Pages 258-262Publisher
AMER SOC MICROBIOLOGY
DOI: 10.1128/CVI.00328-09
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Funding
- European Union [QLK2-CT-0429]
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Based on studies reporting specific antibody titers, it is recommended to vaccinate preterm infants against Bordetella pertussis according to their chronological age. However, as specific T-cell responses also are involved in the protection against B. pertussis, we have determined whether highly preterm infants (<31 weeks) are able to mount these immune responses during vaccination. Forty-eight premature infants were vaccinated at 2, 3, and 4 months of their chronological age with an acellular (Pa; n = 24) or a whole-cell (Pw; n = 24) tetravalent diphtheria-tetanus-pertussis-polio vaccine, and blood samples were collected at 2, 3, and 6 months of age. Most of the Pa- and Pw-vaccinated infants developed at 3 or 6 months of age a gamma interferon (IFN-gamma) response to the B. pertussis antigens, accompanied by an interleukin-5 (IL-5) and IL-13 secretion for the Pa-vaccinated infants. No association was found between a very low infant birth weight, the occurrence of severe infections, and corticosteroid treatment or the administration of gammaglobulins with a low level of antigen-induced IFN-gamma secretion. We conclude that like full-term infants, most preterm infants are able to mount a specific cellular immune response to the administration of the first doses of an acellular or a whole-cell pertussis vaccine.
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