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Vaccine. 2001 Oct 12;20(1-2):194-201.

Serum and salivary anti-capsular antibodies in infants and children vaccinated with octavalent pneumococcal conjugate vaccines, PncD and PncT.

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1
National Public Health Institute, Mannerheimintie 166, FIN-00300, Helsinki, Finland. anu.nurkka@ktl.fi

Abstract

We studied the immunogenicity of two octavalent pneumococcal (Pnc) conjugate vaccines; Pnc polysaccharides (PS) of serotypes 3, 4, 6B, 9V, 14, 18C, 19F, and 23F were conjugated to diphtheria or tetanus toxoid (PncD and PncT, respectively). Fifty healthy Finnish infants were vaccinated at the ages of 2, 4, 6, and 15 months with either PncD or PncT. Serum IgG antibodies to the vaccine serotypes were analysed by enzyme-linked immunosorbent assay (EIA). All eight PSs induced a significant antibody response both after the primary series and after the booster. Response to PncD was higher for PSs 3, 9V, 14 and 18C and to PncT for serotype 4. Salivary IgA and IgG anti-Pnc antibodies were measured for serotypes 4, 6B, 9V, 14, 18C, and 19F. Mucosal antibodies were found rarely after the primary series but in a greater proportion after the booster. In conclusion, both vaccines were immunogenic.

PMID:
11567764
[Indexed for MEDLINE]

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