S. Infantis and S. Typhimurium phage type 135a were most commonly identified. No egg contents
were found to containSalmonella, but the pathogen was isolated on 3.5% of egg external surface samples.
Eleven serotypes were common to both chicken and human samples, two serotypes were common to eggs
and humans, and one serotype (S. Infantis) was common to all three sources. Serotypes of Salmonellaisolated
from chicken and egg samples included serotypes that were also isolated from humans, in cases included in
this study, and in outbreaks previously investigated within Australia. Poultry meat and eggs are potential
sources of introducing a defined range of human pathogens into South Australian kitchens. Ongoing
systematic surveillance of animals and their food products, at farm and retail level for Salmonellacould
provide more definitive evidence of links between food sources and human infections; and also allow accurate
measurement of interventions taken to reduce rates ofSalmonellaisolations in animal-based foods