Spiders probably living off maggots.
So you got a few different problems, so someone gets bacteria, it happens, usually a weak immune system, sometimes bad circulation. In olden times you'd die or have it cut off amputation, then antibiotics but they are getting less effective so now organically grown maggots which then eat the dead flesh.
Spiders eat the maggots.
The issue with those wanting vacuum cleaners is a lack of knowledge of life on this planet. Humans evolved in a chain of life going to after bacteria and viruses and so we co-evolved. Humans evolved to live in dirt. If you take humans too far from dirt the immune response goes awry and that leads to autoimmune issues like allergies.
Mite, spiders and other life we have co-evolved with since before modern times. The notion of being scared of a tiny wee lifeform who is more scared of you than you of it is a modern phenomena, possibly started by those wanting to sell "clean".
Bear in mind that antibiotics is actually mold - so from dirt.
It matters more you eat fruit and veg and get exercise outdoors in sunshine than it does you have a clean home.