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Mass Antibody Testing Could Offer New Coronavirus Insights | Rachel Maddow | MSNBC

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Dr. Diana Koelliker, deputy medical officer of San Miguel County, Colorado, talks with Rachel Maddow about a plan to test everyone in the county for coronavirus antibodies for insights on the virus's spread, containment and immunity. Aired on 3/25/20. » Subscribe to MSNBC: http://on.msnbc.com/SubscribeTomsnbc MSNBC delivers breaking news, in-depth analysis of politics headlines, as well as commentary and informed perspectives. Find video clips and segments from The Rachel Maddow Show, Morning Joe, Meet the Press Daily, The Beat with Ari Melber, Deadline: White House with Nicolle Wallace, Hardball, All In, Last Word, 11th Hour, and more. Connect with MSNBC Online Visit msnbc.com: http://on.msnbc.com/Readmsnbc Subscribe to MSNBC Newsletter: http://MSNBC.com/NewslettersYouTube Find MSNBC on Facebook: http://on.msnbc.com/Likemsnbc Follow MSNBC on Twitter: http://on.msnbc.com/Followmsnbc Follow MSNBC on Instagram: http://on.msnbc.com/Instamsnbc Mass Antibody Testing Could Offer New Coronavirus Insights | Rachel Maddow | MSNBC