truly scary is [in Italy]
Not surprising.
Lot of guy carry pneumonia on foot, undiagnosed and undiscovered, due to bacteria, fungi and who know due to what.
If the person doesn't do heavy job, or exercise regularly it is hard to recognise, maybe there only light pain, but nothing more.
If they catch this virus then it will make the situation more complicated.
Many things, like fungi, insects, nuisance birds , mouses or other irritants in the house can cause pneumonia.
They can cause light pneumonia on they own, but with viral over infection the situation can be critical .
It is important to get rid of any fungi from the house, nuisance birds from the attic, mouses and dust generally .
Good to have air purification machine with HEPA filter, and humidity control.
For anyone who exercise at home these kits could be more important, the lung will work magnitude harder during exercise, and filter out anything from the air .