economic research service usda changing structure of global food consumption and trade wrs 01 1 g118 55 introduction g lobal will likely increase due to expected increases in income levels improved transportation networks growing popu lations requiring greater quantities nutritious safe although for the united states at least there is no evidence that imported as a whole poses higher safety risks than domestically produced zepp kuchler lucier 1998 globalization supply means new can be introduced into countries eg emerging bacteria previously controlled re cholera contaminated spread across geographical areas cause illness worldwide include from veterinary drug pesticide residues additives pathogens ie causing viruses parasites fungi their toxins environmental such heavy metals lead mercury persistent organic pollutants dioxin unconventional agents prions associated with bovine spongiform encephalopathy bse cattle scientists generally agree are low though highest foodborne e coli o157 h7 us surgeon general
