The National Consumer Commission blames it on poor hygiene.
So far 180 people have died, most of them in Gauteng.
The health department is warning the public to avoid all processed meat products produced by Enterprise Foods and Rainbow Chicken.
Authorities are also urging consumers to throw away or return processed meats to retailers.
Major retailers are also removing ready-to-eat meat products for now.
Meanwhile, food giant Tiger Brands will be meeting the National Consumer Commission on the listeriosis outbreak.