Additional file 3. General overview of the average scores of infiltration with inflammatory cells and lymphoid follicle formation in the fundic and pyloric gland zone of pigs of different ages. Gastritis was scored based on infiltration with inflammatory cells/lymphoid follicle formation, with score 0 = absence of infiltration/absence of lymphoid aggregates, 1 = mild infiltration/small number of lymphoid aggregates (n < 5), 2 = moderate infiltration/large number of lymphoid aggregates (n > 5) or presence of 1 organized lymphoid follicle, 3 = marked infiltration/at least 2 organized lymphoid follicles, n = total number of investigated pigs’ stomachs per age group. The data are shown as the average of the administered scores with standard deviation
