MINNEAPOLIS (AP) — Illnesses in seven more people have been tied by the Minnesota Department of Health to the consumption of raw milk from a farm in Sibley County.

The department says Thursday that three people were infected with a bacterium and four more with a parasite.

The patients told Health Department investigators they had consumed raw milk. The department says those that named a source named the Hartmann dairy farm near Gibbon.

The department say laboratory tests found the bacteria and the virus in most of the ill people was genetically identical to samples taken from the farm this summer.

Hartmann’s farm was implicated in an outbreak of E. coli infections in May and June. A telephone listing for Michael Hartmann ran unanswered Thursday.

(© 2010 The Associated Press. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed.)