File: The foodborne disease, which was traced to have originated from polony, claimed over 170 lives.
JOHANNESBURG - Health Minister Aaron Motsoaledi says his department is working to ensure there isn't another listeriosis outbreak.
He says after the 2017 outbreak, protocols for doctors were developed.
EXPLAINER: Symptoms associated with listeriosis
The foodborne disease, which was traced to have originated from polony, claimed over 170 lives, with over 900 cases reported since January 2017.
Most of the deaths occurred in Gauteng.
Health authorities gave Tiger Brands the green light in October 2018 to resume production of processed meat, including bacon and frozen sausages.
The company's factories in Germiston and Polokwane were found to have been the source of the world’s largest outbreak of the disease.
A study conducted by the Food Safety Research Group at the University of Pretoria last year has revealed that the threat of listeriosis still exists.