The identification of viral RNA using reverse transcription quantitative polymerase chain
reaction (RT-qPCR) is the gold standard for identifying an infection caused by SARS-CoV-2 …

Early diagnosis is still as crucial as the initial stage of the COVID-19 pandemic. As RT-PCR
sometimes is not feasible in developing nations or rural areas, health professionals may use …

The most widely used test for the diagnosis of SARS-CoV-2 infection is a PCR test. PCR has
very high sensitivity and is able to detect very low amounts of RNA. However, many …

Background Egypt was among the first 10 countries in Africa that experienced COVID-19
cases. The sudden surge in the number of cases is overwhelming the capacity of the …

Background SARS-CoV-2 antigen rapid diagnostic tests (Ag-RDTs) are increasingly being
integrated in testing strategies around the world. Studies of the Ag-RDTs have shown …

Background Early diagnosis of the novel coronavirus disease of 2019 (COVID-19) in
asymptomatic and symptomatic patients is crucial to identify infectious individuals and to …

Objectives Rapid antigen tests, or RATs, are a type of lateral flow chromatographic
immunoassay that have been utilized to aid diagnosis of SARS-CoV-2 infection. We …

Background Laboratory tests are a mainstay in managing the COVID-19 pandemic, and high
hopes are placed on rapid antigen tests. However, the accuracy of rapid antigen tests in real …

The objective of our study was to evaluate the sensitivity and specificity of rapid antigen
detection tests versus those of reverse transcriptase PCR (RT-PCR) using oral, anterior …

Objectives In the context of the coronavirus disease 2019 (COVID-19) pandemic, the
development and validation of rapid and easy-to-perform diagnostic methods are of high …