People are being urged to check their freezers and dispose of any suspect ready meals.
Its after one person died from a case of Listeriosis. It follows confirmation from the Food Safety Authority of Ireland yesterday.
Nine others cases of listeriosis had been confirmed in recent days, with the outbreak being described as 'extensive'.
The death is being investigated by the HSE's Health Protection Surveillance Centre, but no details of the patient are being revealed in order to protect their identity.
The FSAI has issued a 'precautionary recall' of certain ready meals sold in most major supermarkets here, including Tesco, Supervalu, Centra and Aldi over fears they may contain the harmful Listeria bacteria.
Infection from the Listeria Bacteria is uncommon but can be contracted by eating contaminated food.
A list of the affected products is on the FSAI website and people are now being urged to check their fridges and freezers and bin any ready meals of concern.
