Formula goes sour

Three of the world's largest dairy producers - Nestlé, Danone and Lactalis - are grappling with major infant formula concerns over a toxic contaminant spread through global markets. The crisis began with Nestlé's recall of formula products in more than 60 countries due to traces of cereulide toxin, and other manufacturers have since initiated their own withdrawals in a widening safety scare.

The products are not available in supermarkets in New Zealand.

They are mainly publicly funded and available through hospitals, pharmacies, and GPs. A small amount could have been bought over the counter at pharmacies or online.