The effect of chlortracycline treatment on enteric bacteria in pigs SoA1.3 Delsol AA a Analysis of Helicobacter pylori resistance to antimicrobial agents in Polish children SoA4.2 Abstract Purpose: There are concerns within the medical profession that antimicrobial agents used in livestock production contribute to the increased antibiotic resistance observed in zoonotic bacterial pathogens. To minimise this risk, evidence-based control strategies need to be implemented. We investigated the effect of