Author: Tanimoto, Takuya; Matsumura, Mirai; Tada, Shinpei; Fujita, Suguru; Ueno, Sayaka; Hamai, Kosuke; Omoto, Takuji; Hiroyuki, Maeda; Nishisaka, Takashi; Ishikawa, Nobuhisa
Title: Need for a high-specificity test for confirming weakly positive result in an immunochromatographic SARS-CoV-2-specific antigen test: A case report Cord-id: jonayo77 Document date: 2020_12_1
ID: jonayo77
Snippet: We report a case of false-positive results for SARS-CoV-2-specific antigen. A patient initially had positive results on immunochromatographic SARS-CoV-2-specific antigen test, followed by negative results on RT-PCR assay of saliva and SARS-CoV-2-specific antibody test. Nasopharyngeal swab reexamination using immunochromatographic tests showed weakly positive results, warranting confirmation with high-specificity tests.
Document: We report a case of false-positive results for SARS-CoV-2-specific antigen. A patient initially had positive results on immunochromatographic SARS-CoV-2-specific antigen test, followed by negative results on RT-PCR assay of saliva and SARS-CoV-2-specific antibody test. Nasopharyngeal swab reexamination using immunochromatographic tests showed weakly positive results, warranting confirmation with high-specificity tests.
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