The USDA has issued a public health alert for bacteria contaminated Trader Joe's salads, labeled "TRADER JOE'S Broccoli Slaw & Kale Salad with White Chicken Meat", in 9.3-ounce plastic containers.  The ready-to-eat (so no rinsing) salads were shipped to Arizona, California, Nevada and Utah Trader Joe's stores, and had "Use by" dates of Oct. 10, 11, 12, and 13.  Made by Vallejo-based Ghiringhelli Specialty Foods, there has been no salad recall "because they are probably not being sold any longer or are past their 'Use by' dates".

If you still have the salads, you should throw them out / return to the store.   

The problem was discovered on Oct. 20, 2017 when the firm received notification from their supplier that the broccoli products used in the chicken salads were included in a U.S. Food & Drug Administration recall due to potential contamination with L. monocytogenes. The firm notified FSIS on Oct. 21, 2017. There have been no confirmed reports of adverse reactions due to consumption of these products. Anyone concerned about an illness should contact a health care provider.

Consumption of food contaminated with L. monocytogenes can cause listeriosis, a serious infection that primarily affects older adults, persons with weakened immune systems, and pregnant women and their newborns. Less commonly, persons outside these risk groups are affected.

Listeriosis can cause fever, muscle aches, headache, stiff neck, confusion, loss of balance and convulsions sometimes preceded by diarrhea or other gastrointestinal symptoms. An invasive infection spreads beyond the gastrointestinal tract. In pregnant women, the infection can cause miscarriages, stillbirths, premature delivery or life-threatening infection of the newborn. In addition, serious and sometimes fatal infections can occur in older adults and persons with weakened immune systems. Listeriosis is treated with antibiotics. Persons in the higher-risk categories who experience flu-like symptoms within two months after eating contaminated food should seek medical care and tell the health care provider about eating the contaminated food.
(via USDA, United States Department of Agriculture, "FSIS Issues Public Health Alert for Poultry Products Due To Possible Listeria Contamination")