Sure that manipulating fecal materials is dangerous without safe condition of working, consider this:
food safety and bacteriological considerations in using manure fed Hermetia prepupae are favorable. Hermetia larval activity significantly reduced E. coli 0157:H7 and Salmonella enterica in hen manure (Erickson et al. 2004). There is a substantial body of scientific literature on using various fly larvae (face fly, house fly, blow flies and the black soldier fly), reared in animal manure as animal feed.
Researchers in China, the USSR, the USA, Mexico, and Eastern Europe have fed these to poultry, swine, shrimp, several species of fish, turtles and frogs; with no reported health problems. Researchers in Chile have studied value recovery from swine manure producing house flies as a feedstuff. They reported finding anti-microbial factors in the house fly larvae. These natural antibiotics may reduce the chance of the feedstuff transmitting pathogens, and actually improve animal health, while reducing pathogen content in the digested manure that may be used to fertilize food crops.
Bacterial interactions of maggots in manure and in wound cleaning appear to be similar. The beneficial effect of maggots is very well studied and understood in medicine in the discipline of “maggot debridement therapy” (MDT). This life saving therapy is seeing more use with the increasing prevalence of drug resistant bacterial infections (Sherman and Wyle. 1996).
The sterile maggots used in this therapy are believed to enhance the healing of otherwise intractible wounds in several ways, the chief one being elimination of pyogenic bacteria. Kosta et al. (2001) reported progressively greater destruction of green fluorescent protein-producing E. coli as they progressed through the gut of sterile grown Lucilia sericata, a maggot commonly used in MDT. A similar antagonism seems to occur between Hermetia larvae (and other maggots) in manure.
