Epidemiology and economic impact of PED

摘要

Porcine epidemic diarrhea (PED) virus and transmissible gastroenteritis (TGE) virus belong to the Coronaviri-dae family. As such, they have a large, single-stranded, positive-sense RNA genome. These viruses are important causes of enteric disease in swine and replicate in the differentiated enterocytes covering the villi of the small intestine leading to villous atrophy and malabsorption.Dick Hesse (2013) performed a study to determine tissue localization, shedding pattern, virus carriage, antibody response, and aerosol transmission of virus following inoculation of 23, 4-week-old pigs with intestinal mucosal scrapings containing PED virus. Preliminary results are: