The performance of rapid antigen tests against SARS-CoV-2 variants

Rapid antigen test devices (also known as lateral flow devices; LFDs) have emerged as an important tool in the early detection of SARS-CoV-2.1 In The Lancet Infectious Diseases, David Eyre and colleagues describe the clinical performance of three different LFDs during the COVID-19 pandemic, assessed against successive waves of SARS-CoV-2 variants (alpha [B.1.1.7] and pre-alpha [B.1.177]; delta…

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