Yep, but to put it in persective; look at the CNN article again, the last paragraph.
Now THAT is big numbers.
"In April 1993, 403,000 Milwaukee-area residents and visitors were stricken, according to the Wisconsin Department of Natural Resources. The outbreak was linked to inadequate treatment of drinking water from Lake Michigan. "
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Thanks for pointing it out, I guess I didn't read the article down to the last paragraph. WOW!