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March 25 Update: US COVID-19 Tests per Day #TestAndTrace

Tests per day is a key number to track (along with actual cases and, sadly, deaths). But total tests were a key for South Korea slowing the spread of COVID-19. South Korea has been conducting 15,000 to 20,000 tests per day with a 51 million population, so the US needs to test around 130,000 per day.

Note: NYC and LA have stopped testing mild cases due to resource constraints. Hopefully testing will continue to improve, and we can test more people – this is important for test-and-trace.

The US conducted 74,384 tests in the last 24 hours.

Note: About 16% of tests were positive in the most recent report (some are still pending). The high percentage of positives indicates limited testing.   For Test-and-trace to be effective, the percent positive would probably be at 5% or less.

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