Read on Twitter
Two recent studies from CA claim a large % of the pop. has already been exposed to #COVID19. Here& #39;s why you should be skeptical.
The test they used cannot distinguish between COVID19 and other coronaviruses, such as HCOV-OC43: a strain of common cold.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7106380/pdf/main.pdf">https://www.ncbi.nlm.nih.gov/pmc/artic...
The test they used cannot distinguish between COVID19 and other coronaviruses, such as HCOV-OC43: a strain of common cold.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7106380/pdf/main.pdf">https://www.ncbi.nlm.nih.gov/pmc/artic...
An independent study found the test they used in the study (manufactured by Hangzhou Alltest Biotech) as least reliable of 9 #COVID19 tests.
Among other issues, it interpreted 1/3 Influenza A/B/Adenovirus samples as a positive result for COVID19
https://www.medrxiv.org/content/medrxiv/early/2020/04/10/2020.04.09.20056325.full.pdf">https://www.medrxiv.org/content/m...
Among other issues, it interpreted 1/3 Influenza A/B/Adenovirus samples as a positive result for COVID19
https://www.medrxiv.org/content/medrxiv/early/2020/04/10/2020.04.09.20056325.full.pdf">https://www.medrxiv.org/content/m...
The UK ordered 1 million of Hangzhou& #39;s tests and 2.5M from another vendor. Testing of their reliability has ben so poor, it& #39;s prevented their use. https://www.dailymail.co.uk/news/article-8190949/None-UKs-coronavirus-antibody-tests-good-use.html">https://www.dailymail.co.uk/news/arti...
Meanwhile when the Chinese FDA certified tests in order "to strictly control quality, maintain export order, and crack down on counterfeit and shoddy products" the Hangzhou test was one of two which didn& #39;t make the cut. Further exports were banned. https://www.nbcnews.com/health/health-news/unapproved-chinese-coronavirus-antibody-tests-being-used-least-2-states-n1185131">https://www.nbcnews.com/health/he...
The issues are not necessarily recent. Hangzhou had to pull it& #39;s HIV test off the market in 2016 due to accuracy issues.
https://www.fdanews.com/ext/resources/files/2016/06/06-30-16-HPRASafetyNotice.pdf?1520656872">https://www.fdanews.com/ext/resou...
https://www.fdanews.com/ext/resources/files/2016/06/06-30-16-HPRASafetyNotice.pdf?1520656872">https://www.fdanews.com/ext/resou...
Last but not least, it& #39;s a test that has been repackaged and resold as an "at-home" test by at least one US vendor who misprepresented it& #39;s FDA approval status (or lack thereof) https://www.npr.org/2020/04/02/824437247/exclusive-california-company-under-scrutiny-for-at-home-coronavirus-test-claims">https://www.npr.org/2020/04/0...
