SARS-CoV-2 viral load and detection of infectious virus in the respiratory tract are the two
key parameters for estimating infectiousness. As shedding of infectious virus is required for …

Immunoassays designed to detect SARS-CoV-2 protein antigens (Ag) are commonly used to
diagnose COVID-19. The most widely used tests are lateral flow assays that generate results …

Importance The SARS-CoV-2 Omicron subvariant, BA. 2, may be less severe than previous
variants; however, confounding factors make interpreting the intrinsic severity challenging …

The emergence of each novel SARS-CoV-2 variant of concern (VOC) requires investigation
of its potential impact on the performance of diagnostic tests in use, including antigen …

Background Antigen lateral flow devices (LFDs) have been widely used to control SARS-
CoV-2. We aimed to improve understanding of LFD performance with changes in variant …

Objectives Antigen rapid diagnostic tests (RDTs) for SARS coronavirus 2 (SARS-CoV-2) are
quick, widely available, and inexpensive. Consequently, RDTs have been established as an …

Despite many countries rapidly revising their strategies to prevent contagions, the number of
people infected with Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) …

Objective To assess the performance of rapid antigen tests with unsupervised nasal and
combined oropharyngeal and nasal self-sampling during the omicron period. Design …

The COVID-19 pandemic focused attention on a pressing need for fast, accurate, and low-
cost diagnostic tests. This work presents an electrochemical capillary driven immunoassay …

The Omicron variant of concern has a high level of mutations in different genes that has
raised awareness about the performance of immunological products such as vaccines and …