The State Health Department said that they are working on 12 cases of possible E. coli cases.

They said 8 of them were at the Youth Expo, but some of the other 4 may not have been there.

They are now backtracking and trying to figure out what these cases all had in common.

There were some pre-screening events held before the Youth Expo that are also being investigated.

The one thing the Health Department said all the cases have in common is that the people worked with livestock.