Here's the thing about onions. Scroll near the end for the superstitions about them. That's what I forgot.
My mum wasn't stupid, but the idea that a cut onion could draw infection into itself and protect you from disease, would have been very strong in her pre-antibiotic, pre-NHS childhood.
The idea that they then became reservoirs for bacteria and infection would have seemed to have been a logical conclusion too.
If you grew up hearing that it would probably stay with you.
I always had in the back of my mind (my mum, probably) that rust was a big risk factor for tetanus. It isn't. I think it's that if you step on a rusty nail in the garden it might be contaminated with tetanus bacteria from the soil and basically vaccinate you with live tetanus.
Can anyone answer this:
A childhood friend who became a gravedigger almost died from an infection apparently caused by contaminated soil. My mum who got it from his mum, insisted that it was tetanus.
It might have been true. I don't know. But he was definitely very ill.
I imagine there are all sorts of nasties deep in the ground in a cemetery that you're probably not susceptible to as a visitor touching the surface but if you're a gravedigger you might come into contact with.
But then I've trod on freshly churned mud in cemeteries and thrown a handful of earth on the coffin without warnings or ill effects.
It makes me think my friend was unlucky. Or maybe you do have to have regular vaccinations if you do that kind of job.