I'm not going to say I've thought about it but I would expect it's defined for a lot of countries (I'd be more worried if it wasn't deck ed) and I'm going to assume in most cases it aligns with the regulation of fecal matter levels for other foods .. unless a lobby group has convinced the relevant government body that they are mitigating it with some process like bleaching (also not great). But on the whole I would expect fast food meat to have the same acceptable level of fecal matter as mushrooms. Whether the level is a problem is going to depend on your country ..