Two masonry workers at a dairy farm in Farming Township, Minnesota were diagnosed with Campylobacter jejuni. Both cases reported diarrhea and fever. The incubation period could not be calculated, as cases were exposed on more than one occasion. Both cases had a stool specimen test positive for Campylobacter jejuni; both isolates were indistinguishable by pulsed-field gel electrophoresis.

Cases did not report any common exposures other than working together performing masonry work at the dairy farm. Neither case reported direct contact with the animals but reported dairy cattle being present.