AUTHOR=de Bruijn Brigitte G. C. , van Dixhoorn Ingrid Danielle Ellen , Bolhuis J. Elizabeth , Cornelissen Jan B. W. J. , Stockhofe-Zurwieden Norbert , Kluivers Marion , Rebel Johanna M. J. TITLE=Environmental enrichment affects immunity and reduces disease severity in pigs after co-infection, with stronger effects when applied from birth than from weaning JOURNAL=Frontiers in Veterinary Science VOLUME=11 YEAR=2024 URL=https://www.frontiersin.org/journals/veterinary-science/articles/10.3389/fvets.2024.1511209 DOI=10.3389/fvets.2024.1511209 ISSN=2297-1769