It's been pretty well publicized that an intensive study of proliferating COVID-19 antibody tests, co-led by assistant bioengineering professor Patrick Hsu of the Berkeley-UCSF Innovative Genomics Institute, has found that very few are effective and all have flaws, but that has not discouraged many eager buyers. "There are over 200 different antibody tests out there right at this point, more than we have for any other infectious disease," Professor Hsu says. "One of the things that we're able to do in our study is to test on individual blood samples both positive and negative, all of these tests against each other, head to head, right, in this bake-off, systematically." The tests returned too many false positives, and only one, called Sure Biotech, was found to be 100% accurate. "Some were over 10 percent, and some were even over 15 percent false positive, right? So that would really not be acceptable performance," he says. Link to video. For more on this study, see our press release at Berkeley News.