Totally random sampling makes no sense as we want probability sampling to favor finding positive cases. But the current approach doesn't give us statistical knowledge. I'm not an epidemiologist (don't know the field also see ethics thread) but current test frame teaches us little
Because people aren't systematic. I wouldn't want to be the person explaining to a parent that their feverish, coughing children can't be tested because the government has decided that sampling should be randomly allocated in the population
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Doctors are doing that right now, every day but giving no reason or a bad reason or people are being screened on the phone without any intelligence being gathered.
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