Considered eradicated in the 1900s, this old nemesis is back in parts of North America, but treatment and control is possible with the right combination of measures
by S. ERNEST SANFORD
Swine dysentery is an old nemesis that we thought we had eradicated in the 1990s, but apparently not so. Over the last two or three years, there have been increasing reports of outbreaks from several parts of the U.S. Midwest and Southeast, and also some parts of Canada.
Swine dysentery (SD) is a severe intestinal bacterial disease causing bloody diarrhea (bloody scours) primarily in grow-finish pigs, although any age or size of pigs can be affected. SD occurs worldwide.