Parents with children in Tauranga and Whakatane Hospitals are being assured potentially contaminated baby formula is not used at either hospital.

Bay of Plenty District Health Board chief operating officer Phillip Balmer told SunLive today that neither hospital uses the infant formula containing Fonterra's whey protein concentrate that may contain the botulism causing bacteria.

Tauranga Hospital does not stock the recalled baby formula.

'We do not carry, and never have carried, any stocks of the affected baby powder,” says Phillip.

A recall has been issued for two lines of Nutricia infant formula - Karicare Stage 1 New Baby Infant Formula (from birth) and Karicare Gold+ Stage 2 Follow On Formula (from six months) as a precaution.

Fonterra announced on Saturday a dirty pipe at the company's Hautapu plant had resulted in potential contamination of three batches of whey protein confirmed in tests on July 31.

The Ministry for Primary Industries says the health of consumers is of the utmost importance and it's critical these products are recalled until contamination by Clostridium botulinum can be ruled out.

Stuff.co.nz today reported Waikato District Health Board and Capital and Coast District Health Board have switched to a different formula following the announcement.

A Capital and Coast District Health Board spokesperson says two babies were being fed Nutricia Karicare Infant Formula Stage 1 - one in the neonatal intensive care unit and the other in the children's ward.

The Government and Fonterra have confirmed there have been no cases of botulism reported as a result of the potential contamination.

MPI says it is working closely with Fonterra and Nutircia to trace potentially contaminated products as quickly as possible.

Food Safety Minister Nikki Kaye says MPI has sent staff to Fonterra's offices in Auckland and Melbourne today to verify Fonterra's records about where the contaminated whey protein has gone.

'MPI also has a team in Nutricia's New Zealand warehouses verifying which specific batches of its products may contain contaminated whey protein, and which don't.”

MPI acting Director-General Scott Gallacher says it's critical any products that are a potential risk to public health are removed.

'At this time we don't know which products are potentially contaminated and because of that uncertainty a recall is prudent.

'It is important people don't consume any of the recalled products they may have purchased. We are urging people to check their cupboards and if people do have any of the recalled products they should return them to where they bought them from for a full refund or dispose of them via their normal household rubbish.”

Health Minister Tony Ryall says ministers spoke with food and grocery industry members yesterday afternoon.

'They have assured us they have no immediate concerns about ability to supply existing alternative infant formula products.

'The industry is putting in place arrangements to secure the on-going supply of these other infant formula products.”

People with health concerns are being advised to ring Healthline on 0800 611 116 or Plunketline on 0800 933922 for advice.

People can also call MPI's consumer helpline on 0800 693 721 if they have questions about a product.