Comparative Sensitivity of Rapid Antigen Tests for the Delta Variant (B.1.617.2) of SARS-CoV-2
Rapid antigen tests (RATs) for COVID-19 based on lateral flow immunoassays are useful for rapid diagnosis in a variety of settings. Although many kinds of RATs are available, their respective sensitivity has not been compared. Here, we examined the sensitivity of 27 RATs available in Japan for the d...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-10-01
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| Series: | Viruses |
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| Online Access: | https://www.mdpi.com/1999-4915/13/11/2183 |
| _version_ | 1797508215088349184 |
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| author | Yuko Sakai-Tagawa Seiya Yamayoshi Peter J. Halfmann Yoshihiro Kawaoka |
| author_facet | Yuko Sakai-Tagawa Seiya Yamayoshi Peter J. Halfmann Yoshihiro Kawaoka |
| author_sort | Yuko Sakai-Tagawa |
| collection | DOAJ |
| description | Rapid antigen tests (RATs) for COVID-19 based on lateral flow immunoassays are useful for rapid diagnosis in a variety of settings. Although many kinds of RATs are available, their respective sensitivity has not been compared. Here, we examined the sensitivity of 27 RATs available in Japan for the detection of the SARS-CoV-2 delta variant. All of the RATs tested detected the delta variant albeit with different sensitivities. Nine RATs (ESPLINE SARS-CoV-2, ALSONIC COVID-19 Ag, COVID-19 and Influenza A+B Antigen Combo Rapid Test, ImmunoArrow SARS-CoV-2, Fuji Dri-chem immuno AG cartridge COVID-19 Ag, 2019-nCoV Ag rapid detection kit, Saliva SARS-CoV-2(2019-nCoV) Antigen Test Kit, and Rabliss SARS-CoV-2 antigen detection kit COVID19 AG) showed superior sensitivity to the isolated delta variant. Although actual clinical specimens were not examined, the detection level of most of the RATs was 7500 pfu, indicating that individuals whose test samples contained less virus than that would be considered negative. Therefore, it is important to bear in mind that RATs may miss individuals shedding low levels of infectious virus. |
| first_indexed | 2024-03-10T04:59:18Z |
| format | Article |
| id | doaj.art-8553804083414326bc8194d3b5a8f53b |
| institution | Directory Open Access Journal |
| issn | 1999-4915 |
| language | English |
| last_indexed | 2024-03-10T04:59:18Z |
| publishDate | 2021-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Viruses |
| spelling | doaj.art-8553804083414326bc8194d3b5a8f53b2023-11-23T01:56:20ZengMDPI AGViruses1999-49152021-10-011311218310.3390/v13112183Comparative Sensitivity of Rapid Antigen Tests for the Delta Variant (B.1.617.2) of SARS-CoV-2Yuko Sakai-Tagawa0Seiya Yamayoshi1Peter J. Halfmann2Yoshihiro Kawaoka3Division of Virology, Department of Microbiology and Immunology, Institute of Medical Science, University of Tokyo, Tokyo 108-8639, JapanDivision of Virology, Department of Microbiology and Immunology, Institute of Medical Science, University of Tokyo, Tokyo 108-8639, JapanDepartment of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI 53706, USADivision of Virology, Department of Microbiology and Immunology, Institute of Medical Science, University of Tokyo, Tokyo 108-8639, JapanRapid antigen tests (RATs) for COVID-19 based on lateral flow immunoassays are useful for rapid diagnosis in a variety of settings. Although many kinds of RATs are available, their respective sensitivity has not been compared. Here, we examined the sensitivity of 27 RATs available in Japan for the detection of the SARS-CoV-2 delta variant. All of the RATs tested detected the delta variant albeit with different sensitivities. Nine RATs (ESPLINE SARS-CoV-2, ALSONIC COVID-19 Ag, COVID-19 and Influenza A+B Antigen Combo Rapid Test, ImmunoArrow SARS-CoV-2, Fuji Dri-chem immuno AG cartridge COVID-19 Ag, 2019-nCoV Ag rapid detection kit, Saliva SARS-CoV-2(2019-nCoV) Antigen Test Kit, and Rabliss SARS-CoV-2 antigen detection kit COVID19 AG) showed superior sensitivity to the isolated delta variant. Although actual clinical specimens were not examined, the detection level of most of the RATs was 7500 pfu, indicating that individuals whose test samples contained less virus than that would be considered negative. Therefore, it is important to bear in mind that RATs may miss individuals shedding low levels of infectious virus.https://www.mdpi.com/1999-4915/13/11/2183SARS-CoV-2COVID-19rapid antigen testsensitivitydelta variantB.1.617.2 |
| spellingShingle | Yuko Sakai-Tagawa Seiya Yamayoshi Peter J. Halfmann Yoshihiro Kawaoka Comparative Sensitivity of Rapid Antigen Tests for the Delta Variant (B.1.617.2) of SARS-CoV-2 Viruses SARS-CoV-2 COVID-19 rapid antigen test sensitivity delta variant B.1.617.2 |
| title | Comparative Sensitivity of Rapid Antigen Tests for the Delta Variant (B.1.617.2) of SARS-CoV-2 |
| title_full | Comparative Sensitivity of Rapid Antigen Tests for the Delta Variant (B.1.617.2) of SARS-CoV-2 |
| title_fullStr | Comparative Sensitivity of Rapid Antigen Tests for the Delta Variant (B.1.617.2) of SARS-CoV-2 |
| title_full_unstemmed | Comparative Sensitivity of Rapid Antigen Tests for the Delta Variant (B.1.617.2) of SARS-CoV-2 |
| title_short | Comparative Sensitivity of Rapid Antigen Tests for the Delta Variant (B.1.617.2) of SARS-CoV-2 |
| title_sort | comparative sensitivity of rapid antigen tests for the delta variant b 1 617 2 of sars cov 2 |
| topic | SARS-CoV-2 COVID-19 rapid antigen test sensitivity delta variant B.1.617.2 |
| url | https://www.mdpi.com/1999-4915/13/11/2183 |
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