3 ms·

Any antibody testing done this year is pretty suspect. We simply don't know which tests have a high false-positive rate. Studies like that one should be testing

Any antibody testing done this year is pretty suspect. We simply don't know which tests have a high false-positive rate. Studies like that one should be testing the test but instead are trying to draw conclusions about the virus spread based on a test with unknown efficacy.

xorfish 6y ago
How do you know, that the test wasn't tested? Most good seroprevalence studies combine the two.
nradov 6y ago
Nope. They used the Abbott IgG antibody test which was validated to have 99.63% specificity and 100% sensitivity. There is no need for field researchers to test the test. Unless there was widespread contamination of specimens or something the study results are solid. https://www.medrxiv.org/content/10.1101/2020.08.27.20182741v1 https://www.medrxiv.org/content/10.1101/2020.08.27.20182741v... https://www.abbott.com/antibody-testing/top-COVID-19-antibody-test-questions.html https://www.abbott.com/antibody-testing/top-COVID-19-antibod...