John is President of Center of the American Experiment and Founder/Writer at Powerline. Find John on Twitter at http://twitter.com/@jhinderaker, http://twitter.com/MNThinkTank. http://powerlineblog.com and http://AmericanExperiment.org. (CDC Link: https://www.cdc.gov/coronavirus/2019-ncov/testing/serology-overview.html)