hepatitis E virus(9) HEV(6) Foodborne disease(4) food(4) detection(4) food safety(4) zoonosis.(3) Cell culture(3) milk(3) Foodborne viruses.(2) human norovirus(2) Foodborne outbreak(2) drinking water(2) hepatitis E(2) animal reservoir(2) Hepatitis virus (A, E)(2) Detection in food(2) viremia.(2) filtration(2) zoonotic transmission.(2) Risk assessment(2) Assiut(2) molecular methods(2) Coxiella burnetii(2) liver(2) Quantitative RT-PCR.(2) Zoonotic.(2) Blood(1) nested-PCR(1) Detection method(1)