The ADRS provides weekly condemn data to VS along with information on species and total number of animals slaughtered. June 2007ÁMay 2011 ADRS market swine data were grouped by three major swine production areas (basins) to (1) identify preoutbreak condemn baselines, (2) quantify differences in the 2010 and 2011 STB outbreaks and (3) ascertain the geographical extent of the outbreaks. In addition, a fourth basin was created representing the remainder of U.S. market swine slaughter plants.