http://www.cdc.gov/ecoli/qa_ecoli_sickness.htm
Centers for Disease Control and Prevention, U.S. Department of Health and Human Services
This page answers questions and answers about sickness caused by E. coli. Information includes what E. coli is, how E. coli O157:H7 is spread, what the signs of E. coli O157:H7 sickness are, and what to do to stay safe from E. coli O157:H7.