266 REPORT: Millions of Faulty Test Kits. - 🦠Demonstration shows how WATER can test 'positive' for Covid. (twitter.com) posted 3 years ago by Vidura 3 years ago by Vidura +266 / -0 35 comments share 35 comments share save hide report block hide replies
Test and Control. The control should be present on every test to show it's working, while the test line indicates positive or negative results
Thanks!
You bet!