[pvaldes]

Pointing again to the idea that this disease is triggered by bacteria, at least in some cases [1].

By bacteria or another microorganism that is alive (not a virus). There is a growing suspicion that oral bacteria is related with Alzheimer somehow.

Taxi and ambulance drivers have one thing in common with all the other drivers: they live behind an habitacle filter most of the time. But they have also one particular thing in common that truck drivers and car owners don't have.

They disinfect the car with alcohol after each customer.

[1] This does not mean that other causes like chemicals or pollutants known to damage the nervous system couldn't trigger it also.