Contaminated milk?

No, keep eating your muesli, it's not a problem here.   But in Serbia (and other Balkan countries) there's currently a big issue about high levels of aflatoxin in the milk supply:  see here and here.  It's all over the Serbian news on SBS, too.

Apparently recent climatic conditions have led to problems with the corn fed to dairy cattle.

And this is just after the horsemeat issue!

Our dairy farmers may have problems with milk pricing, but hopefully so long as their cows continue to graze on grass, this won't be an issue for them.