Nice thread pointing out potential issues with Stanford serosurvey. Biggest issues: * Incomplete specificity could cause errors on same scale as prevalence * Potentially biased sample towards people who had sx or concerns for infxn vs. othershttps://twitter.com/Farzad_MD/status/1251198637301997568 …
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Good point!
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I'd start with using a Facebook ad.
End of conversation
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