| http://www.w3.org/ns/prov#value | - The hamburger-borne outbreaks that occurred in California, Idaho, Nevada, and Washington in January 1993 drew public and professional attention to the seriousness of disease caused by enterohemorrhagic strains of E. coli, such as O157:H7, and their public health importance: there were >500 micro-biologically confirmed episodes in that 1993 out-break; 41 affected persons developed the hemolytic-ure
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