RE: RE: RE: Confined Feeding Stewardship Program Zep - it is the leaching of contaminated ground water which in our interests has the potential to carry 0157 into the water systems and through direct contact as in Walkerton or other means such as irrigation and subsequent plant contamination of 0157 leading to human illness. Note 50% of 0157 human sickness is from other than eating beef as in contaminated veggies. Also note that 50% of calves at weaning time are carrying 0157. For these reasons control measures must include the cow/calf sector of the industry and vaccination of the nations cow herd at the source makes the most sense both $ wise and managment wise.