IF this turns out to be true and reliable
Then I don't understand the idea of selling them on Amazon and the High Street.
There will be immediately be a black market and real (and fake) tests will be bought by people able to pay the most.
It is of course essential that front-line workers at most risk in combatting the disease must be tested first. If we can identify people with immunity, then we should not be putting others at greatest risk of infection.
It makes no sense.