Yes and no, the presumption is that the contributors are eating a normal diet with no significant health problems (medication can present as much of a problem as what's being consumed), and outside of composting toilets or separating toilets, it's best to simply use each day's production while it's fresh (assuming you need high nitrogen content). It's actually more dependent on your general health (infections) and how the product itself is handled and used. The issues have a lot more to do with acceptance than anything else. Of course, you can always utilize the composting method if using fresh just won't work for someone's particular scenario. Mixed with wood ashes to the point of slurry, there's no smell that I can detect (that may not be saying much).
Interesting, isn't it, that we have no problem using the excreta of other animals, but not our own, isn't it? Like I said, adhere to some basic guidelines, including handling (methods to eliminate microbial growth) and timing, and you're golden.
Amazingly, outside of problems such as those with active bladder infections, there are few, if any, diseases passed commonly in first world countries. Third world are a different matter, but again, there are steps that can be taken that can go a long way toward ensuring very good safety. That's one of the reasons, I believe, why the standard practice is to not use this method of feeding less than one month before harvest, and that seems prudent.
Aquarium or pond water--does that fit, mentally? It's a lot like that to me. Plus, I don't know how it is for you, but our cats seem to always manage to get into the planting beds and what cat do you know that can resist shitting in mulch or freshly turned earth? It's the main reason why I wear gloves to garden, because more than once I've pulled my hand back out with cat crap on it. Ew.
In any event, the storage, handling and disposal of human waste is a problem everywhere, whether it happens close to you or not. We live on an engineered septic system and I'm going around spending hard earned money on fertilizers, all the while practicing the "It's Mellow If It's Yellow" methodology that stains the toilets and smells up the house, and I have plants that need feeding. It's like killing rattlesnakes and using poison to kill the gophers and squirrels the rattlesnakes ate--it makes absolutely NO sense to me to do things that way.
I understand the feelings of others, though. I feel a little sorry for my husband, he told me that when I got "on this thing" that he apparently knew it was only a "matter of time." Whatever that means. :giggle
I think I've gone full hippie on him.:damnhippie: