With six cases of paratyphoid fever now confirmed, a rahui will be placed over the Napier area where the illness is thought to have stemmed from.
The Hawke's Bay District Health Board today said another case of the typhoid-like fever had been confirmed. Five confirmed cases have required hospital care at Hawke's Bay Hospital and another has needed treatment in Auckland.
All patients are recovering with treatment.
At least three of the cases are known to have eaten mussels gathered from Napier's Ahuriri area, and the district health board is continuing to investigate other cases.
Now, local hapu leaders are looking to put out a rāhui over the area. A rahui is a form of tapu restricting access to or use of, an area or resource by unauthorised persons.
A Ngati Kahungunu Iwi incorporated spokeswoman said they were concerned by the whanau who had been affected by the fever, and for those who could become affected if they weren't aware of the illness.