Following common sense is the best assurance of safety.
So many people panic and run to be tested for CoronaV.
They get infected just being around the others doing the same thing.
Testing should be done when you have symptoms.
If you don’t then logic dictates that you may or may not have it.
Once you are among the people who may have it, the probability to contract it shifts in that direction.
If you don’t have symptoms, then what’s the point of testing, as tomorrow you may be around those who have it, unless in a complete isolation.
Common sense saves; panic; created more problems.