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A comment on New Abbott SARS-CoV-2 antibody test has 99.90% specificity and 100% sensitivity. Parent comment

Re:New Abbott SARS-CoV-2 antibody test has 99.90% specificit... by samatman on Monday May 11, 2020 @04:01PM (#23146331)
All of the sibling answers are correct, but ignoring another possibility: that the timeline is simply wrong, and SARS2 was present in the US early enough that the "false positive" is in fact a true positive.

Which can't lead to a "true 0%", since there's no such animal. But it could mean that all of the tests gave correct answers, in the trial.

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Re:New Abbott SARS-CoV-2 antibody test has 99.90% specificit... by squnch on Monday May 11, 2020 @05:17PM (#23147180)
They could be testing this on five year old samples.
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Re:New Abbott SARS-CoV-2 antibody test has 99.90% specificit... by MarkusQ on Monday May 11, 2020 @05:30PM (#23147331)
From the article:

> Specificity samples were derived from de-identified excess serum specimens sent to our clinical virology laboratory in 2018 and 2019.

So...not five years ago, and it is even possible that a significant number were from late 2019.

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