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Also of note, Premier Biotech, the 'manufacturer' of the antibody tests in the Stanford study, has been accused of distributing non-FDA approved Chinese antibod

by sct202 7y ago

Also of note, Premier Biotech, the 'manufacturer' of the antibody tests in the Stanford study, has been accused of distributing non-FDA approved Chinese antibody tests. https://www.nbcnews.com/health/health-news/unapproved-chinese-coronavirus-antibody-tests-being-used-least-2-states-n1185131 https://www.nbcnews.com/health/health-news/unapproved-chines...

acqq 7y ago
More about how the antibody tests aren't doing what one would want to believe they do: https://www.theguardian.com/world/2020/apr/09/uk-government-urged-to-abandon-poor-finger-prick-antibody-tests-coronavirus https://www.theguardian.com/world/2020/apr/09/uk-government-... "None of 3.5m home tests ordered have so far been accurate enough to detect coronavirus immunity" UK got 3.5 million(!) unusable antibody tests. https://www.bmj.com/content/369/bmj.m1449 https://www.bmj.com/content/369/bmj.m1449 "John Newton, Public Health England’s director of health improvement, said:" "A number of companies were offering us these quick antibody tests, and we were hoping that they’d be fit for purpose, but when they got to test, they all worked but were just not good enough to rely on. “The judgment was made [that] it’s worth taking the time to develop a better antibody test before rolling it out, and that is what the current plan is.”" "Newton told the committee that the tests trialled so far had lacked sufficient sensitivity to identify people who had been infected. “We set a clear target for tests to achieve, and none of them frankly were close.”"
nodamage 7y ago
It looks like the test used in this study (and the LA study) was actually manufactured by Hangzhou Biotest Biotech Co., Ltd and is not FDA approved. Premier Biotech is simply the US distributor. [1] Given the news reports of Chinese companies shipping tons of faulty tests this does raise a serious question as to the reliability of this data. [2] The manual for the test also indicates it will produce a positive test result for other coronaviruses, which seems like a huge red flag. [3] > Positive results may be due to past or present infection with non-SARS-CoV-2 coronavirus strains, such as coronavirus HKU1, NL63, OC43, or 229E. [1] http://en.biotests.com.cn/newsitem/278470281 http://en.biotests.com.cn/newsitem/278470281 [2] https://www.nytimes.com/2020/04/19/us/coronavirus-antibody-tests.html https://www.nytimes.com/2020/04/19/us/coronavirus-antibody-t... [3] https://imgcdn.mckesson.com/CumulusWeb/Click_and_learn/Premier_Biotech_COVID19_Package_Insert.pdf https://imgcdn.mckesson.com/CumulusWeb/Click_and_learn/Premi...

by sct202 7y ago

acqq 7y ago

More about how the antibody tests aren't doing what one would want to believe they do: https://www.theguardian.com/world/2020/apr/09/uk-government-urged-to-abandon-poor-finger-prick-antibody-tests-coronavirus https://www.theguardian.com/world/2020/apr/09/uk-government-... "None of 3.5m home tests ordered have so far been accurate enough to detect coronavirus immunity" UK got 3.5 million(!) unusable antibody tests. https://www.bmj.com/content/369/bmj.m1449 https://www.bmj.com/content/369/bmj.m1449 "John Newton, Public Health England’s director of health improvement, said:" "A number of companies were offering us these quick antibody tests, and we were hoping that they’d be fit for purpose, but when they got to test, they all worked but were just not good enough to rely on. “The judgment was made [that] it’s worth taking the time to develop a better antibody test before rolling it out, and that is what the current plan is.”" "Newton told the committee that the tests trialled so far had lacked sufficient sensitivity to identify people who had been infected. “We set a clear target for tests to achieve, and none of them frankly were close.”"

nodamage 7y ago

It looks like the test used in this study (and the LA study) was actually manufactured by Hangzhou Biotest Biotech Co., Ltd and is not FDA approved. Premier Biotech is simply the US distributor. [1] Given the news reports of Chinese companies shipping tons of faulty tests this does raise a serious question as to the reliability of this data. [2] The manual for the test also indicates it will produce a positive test result for other coronaviruses, which seems like a huge red flag. [3] > Positive results may be due to past or present infection with non-SARS-CoV-2 coronavirus strains, such as coronavirus HKU1, NL63, OC43, or 229E. [1] http://en.biotests.com.cn/newsitem/278470281 http://en.biotests.com.cn/newsitem/278470281 [2] https://www.nytimes.com/2020/04/19/us/coronavirus-antibody-tests.html https://www.nytimes.com/2020/04/19/us/coronavirus-antibody-t... [3] https://imgcdn.mckesson.com/CumulusWeb/Click_and_learn/Premier_Biotech_COVID19_Package_Insert.pdf https://imgcdn.mckesson.com/CumulusWeb/Click_and_learn/Premi...