id author title date pages extension mime words sentences flesch summary cache txt cord-288425-po35m6d9 Albert, Eliseo Field evaluation of a rapid antigen test (Panbio™ COVID-19 Ag Rapid Test Device) for COVID-19 diagnosis in primary healthcare centers 2020-11-13 .txt text/plain 979 71 63 We 25 evaluated the Panbio™ COVID-19 Ag Rapid Test Device for COVID-19 diagnosis in 26 symptomatic patients (n=412) attended in primary healthcare centers. Sensitivity of SARS-CoV-2 RAD 135 assays has been reported to vary between 45%-97% [3-7], yet direct comparison 136 between studies is hampered by marked dissimilarities in patient clinical characteristics 137 and age, testing sites, type of specimen processed, and time to testing, among others. In line with 146 previous reports [2-4], SARS-CoV-2 RNA load was significantly higher in RT-PCR+/ 147 RAD+ specimens than in RT-PCR+/ RAD-samples. In our setting, specimens with RT-148 PCR C T >25 (equivalent to SARS-CoV-2 RNA loads < 5.9 log 10 copies/ml) returned 149 discordant RAD/RT-PCR results. An important observation of our study was that SARS-CoV-2 could not be cultured 151 from RT-PCR+ (C T >25)/RAD-specimens. Antigen-based testing but not real-time PCR correlates with SARS-CoV-2 virus 198 culture Evaluation of 216 rapid antigen test for detection of SARS-CoV-2 virus ./cache/cord-288425-po35m6d9.txt ./txt/cord-288425-po35m6d9.txt