UNDATED -- Gills Onions LLC announced Wednesday it was recalling diced yellow onions carrying the Trader Joe's name because they could be contaminated by Listeria monocytogenes.

Health officials said Listeria was a microorganism that can cause serious or fatal infections in children, the elderly or those with weakened immune systems. It can also cause miscarriages and stillbirths among pregnant women. Healthy adults can experience symptoms including fevers, severe headaches, nausea and diarrhea.

The onions were sold to consumers in 10-ounce bags labeled with the Trader Joe's brand name in Arizona, California, Nevada, New Mexico, Oregon and Washington.

The onions were also sold to food service companies in 20-pound cartons labeled as Gills Onions Brand and Sysco Natural Brand. All the packages are printed with a best-if-used-by date of "06/16/07" and a lot number "2017-R."