TY - JOUR AU - Rice, Eugene W. AU - Clark, Robert M. AU - Johnson, Clifford H. T1 - Chlorine Inactivation of Escherichia coli O157:H7 T2 - Emerging Infectious Disease journal PY - 1999 VL - 5 IS - 3 SP - 461 SN - 1080-6059 AB - We analyzed isolates of Escherichia coli O157:H7 (which has recently caused waterborne outbreaks) and wild-type E. coli to determine their sensitivity to chlorination. Both pathogenic and nonpathogenic strains were significantly reduced within 1 minute of exposure to free chlorine. Results indicate that chlorine levels typically maintained in water systems are sufficient to inactivate these organisms. KW - United States DO - 10.3201/eid0503.990322 UR - https://wwwnc.cdc.gov/eid/article/5/3/99-0322_article ER - End of Reference