First death directly linked to E. coli. Medical officer of health, Dr. Murray McQuigge, declares E. coli outbreak Canada's worst. Two more die. Tory Premier Mike Harris denies government cuts to blame for tragedy, points finger at changes made by previous NDP government. Class-action lawsuit launched.
Provincial police begin probe.
Under opposition pressure, Harris orders public inquiry. Federal, provincial governments announce financial aid for those affected by outbreak. New drinking-water laws take effect. Public inquiry under Justice Dennis O'Connor begins. Province says Walkerton's water clean, but leaves health unit to lift boil-water advisory.