1.   The potent chemical dioxin was found in some fish.

2.   More recently, those anxieties intensified over a scandal in Belgium over chicken and other food products contaminated with the cancer-causing chemical dioxin.

3.   The U.S. Agriculture Department issued the ban on Thursday after meat from Belgium was found to contain the toxic chemical dioxin.

4.   Food outlets and grocers in Australia and New Zealand were advised Thursday to withdraw Belgian food products from their shelves because they could contain the deadly chemical dioxin.

5.   More than a thousand other farms are still barred from selling products possibly affected by the cancer-causing chemical dioxin.

6.   Singapore banned the sale of all European livestock products last month after the cancer-causing chemical dioxin was found in some Belgian animal feed.