I am Ibtisam Faeq Hasona, a veterinary bacteriology researcher. My Master's work focused on characterizing Shiga toxin-producing E. coli (STEC) in broiler chickens. My current Ph.D. research at Mansoura University investigates multidrug-resistant Proteus mirabilis and Citrobacter freundii from Egyptian livestock. Using an integrated approach, I map their epidemiology and characterize key resistance mechanisms like ESBLs and carbapenemases. A core part of my thesis also evaluates innovative alternatives, such as chitosan nanoparticles, against these resistant pathogens. My research trajectory, from STEC to current pathogens, aims to understand how resistant bacteria circulate at the human–animal–environment interface. The goal is to produce actionable One Health evidence to inform surveillance, stewardship, and control policies for animal and public health.