I love watching the US creep ahead on tests per capita.
Tests do nothing to stop spread of covid-19.
Because travel of infected millions of people is impossible to stop in a large and mobile country like ours.
Only way any virus dies out is INFECTIONS. 97% covid-19 infections are Asymptomatic meaning mild symptoms and no hospitalization needed. Those 97% acquire short term immunity lasting several months.
Keep spreading Asymptomatic infections and pretty soon virus runs out of people without immunity, and it disappears. Asymptomatic infections work just like a good vaccine. It immunizes the person from future serious infection.
Shutting down any community or isolation of groups of people is the absolute worst thing. Because then you are depriving people to acquire immunity.
Of course the extremely vulnerable group (obese, over 65 old, diabetics, cancer patients etc) are the ONLY people who need to be shuttered up and isolated. Let the rest roam freely, which is 97% of work force, students etc.