What is it about?
Rapid influenza diagnostic tests are relatively inexpensive, easy to use, and can provide valuable information during a clinic visit. Unfortunately, a negative test result doesn't always rule out influenza. This paper explores various factors for why someone with influenza might receive a negative rapid antigen test.
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Why is it important?
A patient's age, symptoms, and how many days she has been sick might offer clues as to whether a clinician should trust a negative rapid influenza diagnostic test result. This has become an increasingly important topic with the growing popularity of rapid antigen tests following the COVID-19 pandemic.
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This page is a summary of: Assessment of potential factors associated with the sensitivity and specificity of Sofia Influenza A+B Fluorescent Immunoassay in an ambulatory care setting, PLoS ONE, May 2022, PLOS,
DOI: 10.1371/journal.pone.0268279.
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