id author title date pages extension mime words sentences flesch summary cache txt cord-311207-qkkn0297 Pegoraro, Manuela Evaluation of three immunochromatographic tests in COVID-19 serologic diagnosis and their clinical usefulness 2020-10-20 .txt text/plain 1664 92 46 Different assays demonstrate 41–45% of diagnostic sensitivities and 91–98% of specificities, with substantial agreement (89.3–91.2%), but a high percentage of weak positive results (13–22%) was observed with ICTs. ICTs performances were comparable to those of automated immunoassays. In COVID-19 confirmed cases (symptomatic patient with SARS-CoV-2 positive molecular detection), date of symptoms onset was used to timing infection at the moment of specimens' collection. Three stages were identified: early (0-7 days from symptoms onset), intermediate (8China), COVID-19 IgG/IgM Rapid Test Cassette (Zhejiang Orient Gene Biotech Co., Ltd Huzhou, Zhejiang, China), and PRIMA Professional (PRIMA Lab SA, Balerbna, Switzerland) are lateral flow immunochromatographic assays. Sensitivities were assessed on confirmed COVID-19 cases, combining IgG and IgM/IgA positive results, while specificities were estimated on the group of healthy volunteer's. Compared with the automated immunoassays, the ability of ICTs to detect anti-SARS-CoV-2 IgG was equivalent to that of CLIA-MAGLUMI and better than ELISA-Euroimmun, whose IgG positive rates ranged between 0 and 86% at 14 days after symptoms onset. ./cache/cord-311207-qkkn0297.txt ./txt/cord-311207-qkkn0297.txt