Figure 1From: Oral infection with the Salmonella entericaserovar Gallinarum 9R attenuated live vaccine as a model to characterise immunity to fowl typhoid in the chickenAntibody responses to S . Gallinarum 9R. Serum antibody responses to S. Gallinarum lysate antigen in S. Gallinarum 9R infected and control Line 72 chickens infected orally at three weeks of age as determined by ELISA (±SEM). (A) IgM response (serum diluted 1:50) and (B) IgG response (serum diluted 1:200)Back to article page