There have been several anecdotal reports of leprosy in humans who have handled, killed or eaten armadillos, or who may have been indirectly exposed by gardening in soil where the animals burrow, as was the case for Abide's patient.

CNN: Armadillos linked to leprosy in humans

More importantly, the meat from which I source also contributes to the building and replenishment of top soil, ie pastured animals on small farms that eat much closer to a natural diet, are thoughtfully managed, and raised by people who are passionate.

FORBES: Why Butchers Are Sexy And Cutting Meat Is An Art Form

Anthrax occurs naturally in animals and in soil.

CNN: Cutaneous anthrax most common, most survived

Indicator organisms are bacteria which are found in soil and water and in the faeces of animals.

BBC: Carrots

Until the 20th Century, the nutrient element only came to Earth in a reactive form that is usable by plants and animals, thanks to certain microbes in soil and water (and to a smaller extent in lightning strikes).

BBC: Leaving our mark: Fossils of the future

Humans may catch the infection from eating undercooked meat from animals harbouring toxoplasma or from contact with cat litter or contaminated soil.

BBC: Infection risk posed by cats revealed

While the caesium is hard for plants and animals to take up when it is tightly bound to the soil, once in solution (dissolved in water) it can be more readily absorbed.

BBC: Daunting challenge of Fukushima clean-up

Plant the trees, secure the soil, and you save the money, while simultaneously giving people employment and securing the future for animals like the golden lion tamarin.

BBC: Rio +20: Joining the ecological dots