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Serum IgA and bactericidal immunity against Streptococcus suis serotype 2 is increasing between 2 and 6 weeks of age in a farm with autogenous bacterin vaccination pre-farrowing, while specific maternal IgG is decreasing

Crossref DOI link: https://doi.org/10.1186/s40813-025-00485-y

Published Online: 2026-01-14

Update policy: https://doi.org/10.1007/springer_crossmark_policy

Authors

Middendorf, Theresa

Hallbauer, Josepha

Horn, Matthias

Lehnert, Silke

Rieckmann, Karoline

Maas, Alexander

Schrödl, Wieland

Baums, Christoph G.
Funding

Funding for this research was provided by:

Universität Leipzig
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Text and Data Mining valid from 2026-01-14

Version of Record valid from 2026-02-12
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Article History

Received: 7 March 2025

Accepted: 15 December 2025

First Online: 14 January 2026

Declarations

:

: The responsible German authorities, the Landesamt für Natur-, Umwelt und Verbraucherschutz Nordrhein-Westfalen approved this study under 81-02.04.40.2023.VG034. The piglets in this study were treated and cared for in accordance with the principles outlined in EU Directive 2010/63/EU and the German Animal Protection Law (Tierschutzgesetz).

: Not applicable.

: The authors declare no competing interests.

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