Theo Spierings began with an apology, aimed both at calming the public and at mollifying the Chinese government, writes Malcolm Moore.

Hayley Nieuwoudt will never use Karicare again - the mixed messages and misinformation from Fonterra and the Government have put her off the milk formula brand for good.

Editorial: For the third time in five years, Fonterra has blotted its copybook in China and in one sense the latest blot is the worst of the three.

Fonterra has "cast a shadow" across the rest of New Zealand's dairy export industry.

Prime Minister John Key says there will be a probe into Fonterra as the Government increases pressure on the dairy giant to front up with all of the information

Frustrated parents have been flooding helplines in a desperate bid for information on which infant formula is safe and some have taken their children to the doctor.

Fonterra is likely to face compensation claims from companies it supplied with tainted whey, says a law professor.

Fonterra's unit price and the New Zealand dollar partly recovered yesterday after both were sold down on the back of the latest contamination scare.

China is questioning New Zealand's '100 per cent pure' brand as headlines worldwide bring attention to Fonterra's milk formula scandal.

Fallout from Fonterra's milk formula scandal could spread to other agricultural exports, but the brand damage will depend on how the co-op reacts next.

Fonterra chief executive Theo Spierings has expressed regret for consumer anxiety caused by revelations that batches of whey protein had been contaminated.

Fonterra Fund shares have dropped by 62 cents in early trading as markets digest the impact of the contamination scare on our biggest exporter.

Fonterra's unit price is likely to take a hit this morning and the New Zealand dollar has already fallen to a month low.

Worried parents are flooding an infant formula company's hotline, amid revelations almost 68,000 cans of formula could be tainted with a botulism-causing bacterium.

"One dirty pipe. It might have done less damage if it had exploded," writes Liam Dann.

Fonterra's dairy product recall made headlines worldwide, as New Zealand's export markets react to reports of the botulism scare.

Fears that NZ milk products could contain bacterium that may cause botulism is big news in China, with the story featuring prominently in major newspapers.

Russia has made one of the most extreme responses to Fonterra's contamination scare so far, banning all goods made by the NZ dairy giant, according to media reports.

Authorities have recalled up to 1000 tonnes of dairy products across NZ and seven others, after Fonterra announced tests had found a bacterium that could cause botulism.

The potential contamination of Fonterra products with botulism occurred as a result of a dirty pipe at the company's Hautapu plant, it says.

Fonterra has lifted its forecast milk payout to farmers by 50 cents in the 2014 season.

Anchor says its light-proof milk bottles have been fully integrated into the country's recycling system.