Vaccination with a Streptomycin-Resistant Strain of Salmonella enteric serovar Enteritidis lacking pefA and spvC Genes Reduces Cecal Colonization and Organ Invasion in SPF Chicks Journal title: Global Journal of Animal Scientific Research Authors: L. Revolledo and A.J.P.Ferreira Subject(s): Psychology, Animal Behavior, Genetics, Nutrition and Metabolism