Faecal perils
Every day, every person on earth emits from their body around 100 grammes of faeces and 1.5 litres of pee. From the emitter’s point of view these are ‘wastes’ which need to be privately, congenially and safely disposed of, although they contain nutrients useful for fertilizer – if you can bear to capture them. From the public health point of view, the risk is from the pathogens in the shit: urine is virtually sterile.

*One gram of faeces can contain*:
10,000,000  viruses
1,000,000  bacteria
1,000  parasitic cysts
100  parasitic eggs1