Other fast-casual chains — including those known for serving leafy greens — have also seen declines in foot traffic

The chain is struggling to recover amid a growing cyclosporiasis outbreak.

Traffic at Sweetgreen, Chopt and Panera Bread has dipped modestly

Taco Bell customer traffic plunged after a parasite outbreak in the US linked to shredded iceberg lettuce triggered thousands of cyclosporiasis cases in Michigan. Yum Brands…