PIERRE, S.D. (AP) — Raw milk from a Brookings dairy has tested positive for listeria.
The South Dakota Department of Agriculture says it showed up in a sampling of bottled raw milk from Jerseydale Farms near Brookings.
The agency says unpasteurized milk bought recently from the operation might contain harmful bacteria that can lead to listeria infection, so it should be discarded or returned.
The South Dakota Department of Health says listeria can cause serious and sometimes fatal infections in young children, the elderly and people with weakened immune systems.
State rules require permits for dairies selling raw milk directly to consumers. Inspections are required at least every year. And dairies must also submit samples monthly for bacteria and residue testing.