Public health officials are investigating a listeria outbreak linked to hard-boiled eggs used in salads at restaurants and grocery stores.

Mann Packing Co. recalled a large variety of bagged green beans, broccoli and other vegetables, along with veggie bowls and trays that may be contaminated with listeria.

North Bay Produce recalled bulk apples and bagged fresh apples because of possible listeria contamination.

Tip Top Poultry Inc. and the FDA provided a wider picture of the reach of a ready-to-eat chicken recall for possible listeria. The chicken went in heat-and-eat meals, sandwiches and deli salads at major grocery stores and a few restaurants.

Tip Top Poultry’s recall of ready-to-eat chicken for possible listeria has spread to more brands of chicken salad and packaged sandwiches, some sold at Walmart and Target.

Lipari Foods recalled bulk chicken salad and sandwiches made with the salad that may be contaminated with listeria.

Elevation Foods recalled some salads and sandwiches sold at Target and Fresh Market for possible listeria contamination.

Pita Pal Foods recalled hummus because of concerns about listeria found at a facility during an FDA inspection, not in the finished product, the company announced.

Growers Express recalled Trader Joe’s sweet potato and zucchini noodles and other bagged, chopped fresh vegetables for possible listeria contamination.

Henry Avocado Corporation recalled whole avocados sold in bulk through retailers for possible listeria contamination after positive environmental inspection tests at a packing facility.