Observations on clinical aspects of transmissible gastroenteritis of pigs in Norfolk and Suffolk, 1980-81.

Outbreaks of transmissible gastroenteritis in 56 breeding units, six maiden gilt sites and 64 fattening units were investigated during the period December 1980 to October 1981. The disease invariably occurred in classical virulent form, resulting in very high mortality in baby piglets. Reproductive sequelae were sometimes evident. Individual outbreaks continued for longer than in previous years. There was a high rate of recrudescene, particularly in large breeding units, and infection also persisted in many fattening units. The value of control measures and supportive therapy is discussed.