PUBLIC SERVICE ANNOUNCEMENT:

If a public health goal is detecting infectious ppl:

The most sensitive #COVID19 test in the world, if used rarely (ie 1x/month) is:

much LESS sensitive and LESS effective than a low sensitivity test used frequently.

Further...

1/x
If a very sensitive #COVID19 test has a 24 hour or more delay to return results, it quickly becomes:

LESS EFFECTIVE to stop spread of SARS-CoV-2 than a lower sensitivity test that gives results in minutes.

2/x
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