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COVID-19 Antigen Test

The Willi Fox COVID-19 Antigen Test detects the SARS-CoV-2 virus directly from about the second day after COVID-19 illness. The test also detects the SARS-CoV-2 mutation delta, the mutations from South Africa and Brazil! Furthermore, PEI's review revealed no loss of performance of the rapid antigen test with the SARS-CoV-2 Omicron variant!

→ on the EU Common list for COVID-19 antigen rapid tests!
→ approved for the issuance of digital EU COVID certificates!
→ with a sensitivity of 100% at Ct ≤ 25 (evaluated by PEI Germany)!

EU Common List

Specimen media

  • Nasopharyngeal swab
  • Oropharyngeal swab


  • Relative sensitivity: 97,56%
  • Relative specificity: >99,9%
  • Overall agreement: 98,94%


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Willi Fox products

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