A supplier of frozen fruit and vegetables to major U.S. supermarkets has recalled products made over the past two years because of concerns they may be contaminated with a dangerous strain of listeria, U.S. food inspectors said.

CRF Frozen Foods LLC expanded the recall, first issued last month, to cover 358 products sold under 42 brands, including products sold at Costco Co., Trader Joe’s, Safeway and Walmart under brands including Bybee’s, Columbia River, O Organic, Organic By Nature and Wild Oats.

The initial recall in late April covered 15 frozen vegetable products and halted operations at CRF’s plant in Pasco, Wash.

The new recall includes frozen foods ranging from broccoli to sweet potatoes to blueberries, all of which “have the potential to be contaminated,” according to a company statement.

Find a list of the recalled products by clicking here: Frozen food recall

The U.S. Centers for Disease Control and Prevention on Tuesday said CRF’s products had been linked to eight listeria infections since September 2013. All eight people were hospitalized and two died, though health officials said listeria wasn’t the cause of death for either individual.

Also on Wednesday:

• Trader Joe’s broccoli slaw and kale salad with white chicken meat, made by Ghiringhelli Specialty Foods, was recalled because of possible listeria contamination. The recalled products have “use by” labels of May 2 through May 7.

• Kroger Co. recalled Kroger sunflower salad toppers and Kroger sunflower kernels with “sell by” dates in December 2016, and Kroger cranberry delight trail mix with “sell by” dates in March and April 2017. The sunflower kernels might be contaminated with listeria. Kroger operates King Soopers and City Market stores.

CRF’s recall comes a year after iconic Texas ice cream maker Blue Bell Creameries issued one of the most sweeping U.S. food recalls by a single brand after its products were tied to a listeria outbreak linked to three deaths and multiple other illnesses. That recall threatened to topple the century-old company before an emergency investment from a local billionaire helped it recover.

Listeria is a potentially deadly bacteria that generally doesn’t cause serious illnesses in healthy people but poses a threat to pregnant women, newborns, older adults and people with weakened immune systems.

On Friday, Dole Food Co. said the U.S. Justice Department had launched a criminal investigation over a listeria outbreak tied to that company’s packaged salads, which was linked to four deaths in the U.S. and Canada.

The Denver Post contributed to this report.