The USDA is expanding the recall of Tip Top Poultry products, now extending it to frozen cooked, diced or shredded chicken was made between Jan. 21, 2019 and Sept 24, 2019 as part of listeria concerns. 

In August, Tip Top recalled more than 135,000 pounds of fully cooked chicken because of similar concerns. 

“We were shocked, saddened, and moved to action when we learned this,” Tip Top said in the statement to its customers in August. 

According to Food Safety News, a Listeria outbreak with no known cause has spread across 13 states and hospitalized 22 people. 

Tip Top has promised to "scour the cooking line" to find any root causes of the issue.