The World and British Anti-Doping Agencies issue a joint warning advising athletes to avoid organ meats such as liver in the upcoming 2012 Olympics as these may contain the drug clenbuterol, which is fed to livestock in some countries and is not only toxic but could disqualify them from competitions for as long as two years.
The Canadian Food Inspection Agency on December 18, 2011 expanded a previous recall due to Listeria contamination to include nine cheese and several yogurt products distributed in the provinces of Quebec and Ontario, with one person thus far who has fallen ill to the bacterial infection that, in its extreme form, can be lethal.