Every day we are flooding with information. It is up to each of us to prioritize that information by assigning our own personal value to everything we see. What seems like a 10 to me might be a 4 to someone else.
No matter how you filter your information the real problem seems to me we are flooded with "4's" and the occasional "10" that rolls around gets lost in the shuffle.
To me this is a 10 - The UK is testing for antibodies and the US does not.