All of the above and:-
And allow for the free use of medicine that is known to prevent severe respiratory disease.
Ivermectin spring to mind, one can get it here but it's way overpriced, I got 10 6mg tabs for 190 bucks while it should be less than aspirin.
And the last point be made compulsory!
In March of 1982 I was mandated by the Comp. that I worked for to get the flu shot and within a few weeks I got the sniffles and thick head and was ill for 18 months, never so bad that I had to take time of, but miserable all the time.
So when I was again mandated in 1983, I said now way and I...
The profile is correct or near enough.
If I get my temps right then my efficiency gets close to 80% , normally 76-78% , though I've had the odd miss with efficiency at low 70's and that my friends is why I need to save for a system with a pump and controls.
I have a very good counterflow chiller...