Antibody Test Army Spc. Maritssa Quintanilla, a Texas Army National Guard combat medic assigned to Operation Guardian Support, files a COVID-19 test at the Weslaco Armory in Weslaco, Texas, June 19, 2020. Service members who were exposed to someone who tested positive for COVID-19 had the opportunity to get an antibody test. SHARE: Download: Full Size (0.93 MB) Credit: Air Force Staff Sgt. DeJon Williams, Texas Air National Guard VIRIN: 200619-Z-XR025-1144M.JPG Photo Gallery