Customers of a Stop & Shop in the Greater Boston area should monitor themselves for symptoms of Listeria infection for the next two months if they recently ate meat or cheese from the grocery store’s deli.

The Rhode Island Department of Health posted a consumer alert this weekend urging anyone who still has sliced meat…

Rates of Listeria monocytogenes in retail delis suggest that standard cleaning procedures don’t sufficiently eliminate the potentially deadly bacteria, according to a new study by researchers at Purdue University. During one phase of the study, researchers found 9.5 percent of samples taken from retail delis to be contaminated with Listeria. That includes numerous samples…

When Janet Anderberg and her colleagues at the Washington State Department of Health began investigating an outbreak of Salmonella connected to one franchise location of a national sandwich chain, she had never disassembled a commercial deli slicer. But when her lab returned samples from the kitchen that showed Salmonella contamination from the slicer, the food…