Figure 5From: phoP, SPI1, SPI2 and aroA mutants of Salmonella Enteritidis induce a different immune response in chickens Salmonella counts in organs of chickens infected with wild-type S. Enteritidis at different ages. Chickens were infected with wild-type S. Enteritidis on day 1, 22 or 43 of life and euthanized 4 days later. The data represent individual values and median CFU/g tissue. Asterisks indicate statistically significant difference from Salmonella counts in 5-day-old chickens 4 days post infection at P ≤ 0.05 (*).Back to article page