Now, a Walmart supplier recalled its frozen pizza because of listeria suspicion.
The recalled frozen pizzas were produced February 23.
Wal-Mart is recalling more than 21,000 pounds of frozen pizza sold in mostly western states over concerns the pizzas may be contaminated with listeria.
Consumers should not consume the recalled product. Despite the fact that they received no complaints, RBR Meat Company decided that it is best if they recalled the frozen pizza. The pizzas were 16 inches in size and had lot code 20547. The recalled products should be thrown away or returned to the place of purchase.
Walmart distribution centers in California, Nevada, Utah and Washington all had the pizzas shipped to.
A statement issued by the USDA's Food Safety and Inspection Service on Wednesday rated the health risk as "high" and warned customers not to consume the product.
The CDC reports that an estimated 1,600 people are infection with listeriosis each year, with about 260 deaths.
The problem was discovered during routine sampling.
Food poisoning with Listeria can cause fever, muscle aches, headache, stiff neck, confusion, loss of balance, or seizures.
Listeria can lead to illness and can pose a danger to pregnant women and the elderly. In addition, serious and sometimes fatal infections in older adults and persons with weakened immune systems. Researchers urge pregnant women to avoid several food that may increase their risk for Listeriosis such as unpasteurized milk, raw sprouts, soft cheese, melon, and deli meats that were not carefully handled.