Title: TGE | Iowa State University
Headings: TGE
TGE
Transmissible Gastroenteritis (TGE)
Definition
Occurrence
Historical information
Etiology
Epidemiology
Pathogenesis
Clinical signs
Lesions
Diagnosis
Control

Content: An owner may wish to eradicate TGE and maintain a negative herd after infection has occurred. This can sometimes be accomplished by whole-herd exposure to virus and allowing no introductions into the herd for a 60-day period. Alternatively, depopulation during a hot month should be accompanied by thorough cleaning and disinfection. Then, after allowing the facilities to be free of swine for several weeks, restocking with serologically negative stock may be effective. Attenuated and killed virus vaccines are available. Vaccines usually are used to stimulate immunity in the dams although some also can be given to neonatal piglets. Vaccines are usually administered to dams at intervals prior to farrowing. All the vaccines currently available are most effective when used to stimulate an anamnestic response in previously exposed swine but are generally unable to protect a naïve population in the face of an acute exposure. In acute outbreaks, pregnant sows and gilts that are two or more weeks from farrowing can be induced to form their own antibodies to TGE to protect their l