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. 2012 Apr 24;7(4):e35782. doi: 10.1371/journal.pone.0035782

Figure 4. Spleen colonization of chicks infected with S. Senftenberg.

Figure 4

Broiler chikens were orally infected with 105 CFU. A) Frequency of spleen colonization by persistent (SS308, SS209) and non-persistent (SS278, SS304) strains of S. Senftenberg at different times post-infection. B) Number of CFU of S. Senftenberg per gram of spleen. Spleen samples which were positive after enrichment were given a value of 33 CFU. These results correspond to the mean of 15 animals (positives and negatives) ± SEM.* Letters (a–b) indicate a significant difference in means of spleen colonization levels between the groups of persistent (SS308, SS209) and non-persistent strains (SS304, SS278) at the 0.05 level.