Fig. 1From: Immunogenicity and protective efficacy of Salmonella enterica serovar Pullorum pathogenicity island 2 mutant as a live attenuated vaccine candidateBacterial recovery from liver and spleen of the vaccinated chickens. The vaccinated group was intramuscularly immunized with 2 × 107 CFU S06004ΔSPI2 in 2-day old chickens, and control group received 100 μl PBS. Values represent the mean ± SEM log10 CFU/g. All liver and spleen samples of control group were negativeBack to article page