See here.
The estimated infection numbers are 28 to 55 times higher than the 7,994 confirmed COVID-19 cases L.A. County had reported at the time of the study in early April.
This study seems to confirm the study reported in BREAKING: Stanford Study: COVID-19 Case Fatality Rate May Be Overstated By A Factor Of 85
It is becoming increasingly clear that we have closed the country down out of fear of a virus when the overwhelming majority of infections are so mild that the infected person never notices.