Fig. 5From: Shedding of Salmonella Typhimurium in vaccinated and unvaccinated hens during early lay in field conditions: a randomised controlled triala Level of wild type Salmonella on egg belt samples from vaccinated and unvaccinated groups over the period of this experiment. (Log CFU ± SE). The bacterial load was measured by qPCR. Data was analysed by ANOVA. There were no significant differences between vaccinated and unvaccinated flocks (b) Level of wild type Salmonella spp. in the dust collected from shed during the experiment. (Log CFU ± SE). The bacterial load was measured by qPCR. Data was analysed by ANOVABack to article page