People are being warned not to eat a number of brands of chilled oysters harvested from the Mahurangi Harbour as they may be contaminated with norovirus.
The companies Hunter Fish Otahuhu Pacific Oysters, Matakana Oysters, Orata Marine, Seafood Harbour and Hutchings and Addison are recalling all oysters harvested from the harbour from mid-January.
The Ministry of Primary Industries (MPI) says all companies are cooperating in managing this issue.
Batch numbers and brand names are not fully confirmed as yet, but further detail will be posted on MPI’s website as it becomes available.
Most of the oysters are sold in the local area in pottles or on the half shell.
MPI’s manager of food compliance, Melinda Sando, says the amount of affected product is likely to be very small as the products have a very short shelf life.
“Our main concern, however, is that people may have frozen the oysters,” she says. “It is very important that they are discarded.”
MPI has also put a halt on all harvesting of oysters from the harbour. The Ministry was alerted to the issue by local health authorities after 11 people became ill.
“It is likely to be the result of a localised contamination – for example discharge from a boat or a leaking septic tank.”
MPI is continuing to investigate.