Introduction
Disease caused by one of the two poultry-adapted strains of Salmonella bacteria, Salmonella Gallinarum. This can cause mortality in birds of any age. Broiler parents and brown-shell egg layers are especially susceptible. Chickens are most commonly affected but it also infects turkeys, game birds, guinea fowls, sparrows, parrots, canaries and bullfinches. Infections still occur worldwide in non-commercial poultry but are rare in most commercial systems now.