Fig. 1From: Simultaneous oral administration of Salmonella Infantis and S. Typhimurium in chicksExperimental procedure for Salmonella administration. Eight 1-day-old birds were simultaneously administered with Salmonella enterica subspecies enterica serovar Infantis and S. Typhimurium (Group a), and then housed in the same cage as four non-infected birds (Group b) on days 2–8. Group b birds were then caged with Group c birds (four non-infected birds) on days 8–15. Group c birds were then housed with a final group of two non-infected birds (Group d) for days 15–18. I and T denote S. Infantis and S. Typhimurium, respectively. Five of eight birds were sacrificed at day 5 and examined using histopathology and immunohistochemistryBack to article page