Direct Comparison of Immunogenicity Induced by 10- or 13-Valent Pneumococcal Conjugate Vaccine around the 11-Month Booster in Dutch Infants.
<h4>Background & aims</h4>Since 2009/10, a 10- and a 13-valent pneumococcal conjugate vaccine (PCV) are available, but only the 10-valent vaccine is now being used for the children in the Netherlands. As the vaccines differ in number of serotypes, antigen concentration, and carrier p...
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Public Library of Science (PLoS)
2015-01-01
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| Online Access: | https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0144739&type=printable |
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| author | Alienke J Wijmenga-Monsuur Els van Westen Mirjam J Knol Riet M C Jongerius Marta Zancolli David Goldblatt Pieter G M van Gageldonk Irina Tcherniaeva Guy A M Berbers Nynke Y Rots |
| author_facet | Alienke J Wijmenga-Monsuur Els van Westen Mirjam J Knol Riet M C Jongerius Marta Zancolli David Goldblatt Pieter G M van Gageldonk Irina Tcherniaeva Guy A M Berbers Nynke Y Rots |
| author_sort | Alienke J Wijmenga-Monsuur |
| collection | DOAJ |
| description | <h4>Background & aims</h4>Since 2009/10, a 10- and a 13-valent pneumococcal conjugate vaccine (PCV) are available, but only the 10-valent vaccine is now being used for the children in the Netherlands. As the vaccines differ in number of serotypes, antigen concentration, and carrier proteins this study was designed to directly compare quantity and quality of the antibody responses induced by PCV10 and PCV13 before and after the 11-month booster.<h4>Methods</h4>Dutch infants (n = 132) were immunized with either PCV10 or PCV13 and DTaP-IPV-Hib-HepB at the age of 2, 3, 4 and 11 months. Blood samples were collected pre-booster and post-booster at one week and one month post-booster for quantitative and qualitative immunogenicity against 13 pneumococcal serotypes, as well as quantitative immunogenicity against diphtheria, tetanus, pertussis and Haemophilus influenzae type b. We compared immunogenicity induced by PCV13 and PCV10 for their ten shared serotypes.<h4>Results</h4>One month post-booster, pneumococcal serotype-specific IgG geometric mean concentrations (GMCs) for the PCV13 group were higher compared with the PCV10 group for six serotypes, although avidity was lower. Serotype 19F showed the most distinct difference in IgG and, in contrast to other serotypes, its avidity was higher in the PCV13 group. One week post-booster, opsonophagocytosis for serotype 19F did not differ significantly between the PCV10- and the PCV13 group.<h4>Conclusion</h4>Both PCV10 and PCV13 were immunogenic and induced a booster response. Compared to the PCV10 group, the PCV13 group showed higher levels for serotype 19F GMCs and avidity, pre- as well as post-booster, although opsonophagocytosis did not differ significantly between groups. In our study, avidity is not correlated to opsonophagocytotic activity (OPA) and correlations between IgG and OPA differ per serotype. Therefore, besides assays to determine IgG GMCs, assays to detect opsonophagocytotic activity, i.e., the actual killing of the pneumococcus, are important for PCV evaluation. How differences between the two vaccines relate to long-term protection requires further investigation.<h4>Trial registration</h4>www.trialregister.nl NTR3069. |
| format | Article |
| id | doaj-art-0d200351fd244961a9dcf8e4cc93e7d7 |
| institution | DOAJ |
| issn | 1932-6203 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
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| spelling | doaj-art-0d200351fd244961a9dcf8e4cc93e7d72025-08-20T03:11:02ZengPublic Library of Science (PLoS)PLoS ONE1932-62032015-01-011012e014473910.1371/journal.pone.0144739Direct Comparison of Immunogenicity Induced by 10- or 13-Valent Pneumococcal Conjugate Vaccine around the 11-Month Booster in Dutch Infants.Alienke J Wijmenga-MonsuurEls van WestenMirjam J KnolRiet M C JongeriusMarta ZancolliDavid GoldblattPieter G M van GageldonkIrina TcherniaevaGuy A M BerbersNynke Y Rots<h4>Background & aims</h4>Since 2009/10, a 10- and a 13-valent pneumococcal conjugate vaccine (PCV) are available, but only the 10-valent vaccine is now being used for the children in the Netherlands. As the vaccines differ in number of serotypes, antigen concentration, and carrier proteins this study was designed to directly compare quantity and quality of the antibody responses induced by PCV10 and PCV13 before and after the 11-month booster.<h4>Methods</h4>Dutch infants (n = 132) were immunized with either PCV10 or PCV13 and DTaP-IPV-Hib-HepB at the age of 2, 3, 4 and 11 months. Blood samples were collected pre-booster and post-booster at one week and one month post-booster for quantitative and qualitative immunogenicity against 13 pneumococcal serotypes, as well as quantitative immunogenicity against diphtheria, tetanus, pertussis and Haemophilus influenzae type b. We compared immunogenicity induced by PCV13 and PCV10 for their ten shared serotypes.<h4>Results</h4>One month post-booster, pneumococcal serotype-specific IgG geometric mean concentrations (GMCs) for the PCV13 group were higher compared with the PCV10 group for six serotypes, although avidity was lower. Serotype 19F showed the most distinct difference in IgG and, in contrast to other serotypes, its avidity was higher in the PCV13 group. One week post-booster, opsonophagocytosis for serotype 19F did not differ significantly between the PCV10- and the PCV13 group.<h4>Conclusion</h4>Both PCV10 and PCV13 were immunogenic and induced a booster response. Compared to the PCV10 group, the PCV13 group showed higher levels for serotype 19F GMCs and avidity, pre- as well as post-booster, although opsonophagocytosis did not differ significantly between groups. In our study, avidity is not correlated to opsonophagocytotic activity (OPA) and correlations between IgG and OPA differ per serotype. Therefore, besides assays to determine IgG GMCs, assays to detect opsonophagocytotic activity, i.e., the actual killing of the pneumococcus, are important for PCV evaluation. How differences between the two vaccines relate to long-term protection requires further investigation.<h4>Trial registration</h4>www.trialregister.nl NTR3069.https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0144739&type=printable |
| spellingShingle | Alienke J Wijmenga-Monsuur Els van Westen Mirjam J Knol Riet M C Jongerius Marta Zancolli David Goldblatt Pieter G M van Gageldonk Irina Tcherniaeva Guy A M Berbers Nynke Y Rots Direct Comparison of Immunogenicity Induced by 10- or 13-Valent Pneumococcal Conjugate Vaccine around the 11-Month Booster in Dutch Infants. PLoS ONE |
| title | Direct Comparison of Immunogenicity Induced by 10- or 13-Valent Pneumococcal Conjugate Vaccine around the 11-Month Booster in Dutch Infants. |
| title_full | Direct Comparison of Immunogenicity Induced by 10- or 13-Valent Pneumococcal Conjugate Vaccine around the 11-Month Booster in Dutch Infants. |
| title_fullStr | Direct Comparison of Immunogenicity Induced by 10- or 13-Valent Pneumococcal Conjugate Vaccine around the 11-Month Booster in Dutch Infants. |
| title_full_unstemmed | Direct Comparison of Immunogenicity Induced by 10- or 13-Valent Pneumococcal Conjugate Vaccine around the 11-Month Booster in Dutch Infants. |
| title_short | Direct Comparison of Immunogenicity Induced by 10- or 13-Valent Pneumococcal Conjugate Vaccine around the 11-Month Booster in Dutch Infants. |
| title_sort | direct comparison of immunogenicity induced by 10 or 13 valent pneumococcal conjugate vaccine around the 11 month booster in dutch infants |
| url | https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0144739&type=printable |
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