Background COVID‐19 illness is highly variable, ranging from infection with no symptoms
through to pneumonia and life‐threatening consequences. Symptoms such as fever, cough …

Background The comparative performance of different clinical sampling methods for
diagnosis of SARS-CoV-2 infection by RT-PCR among populations with suspected infection …

Background: Nasopharyngeal swabs are the primary sampling method used for detection of
severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), but they require a trained …

Background Diagnosis of COVID-19 in symptomatic patients and screening of populations
for SARS-CoV-2 infection require access to straightforward, low-cost and high-throughput …

Background Salivary tests for the new coronavirus (SARS-CoV-2) diagnosis have been
suggested as alternative methods for the nasopharyngeal and oropharyngeal tests. Method …

The rapid and accurate testing of SARS-CoV-2 infection is still crucial to mitigate, and
eventually halt, the spread of this disease. Currently, nasopharyngeal swab (NPS) and …

Background/purpose Due to the easy transmission of COVID-19, the virus is a threat to
global health. Early diagnosis of suspected patients will play an essential role in preventing …

Objectives The high diagnostic accuracy indices for saliva severe acute respiratory
syndrome coronavirus 2 (SARS-CoV-2) reverse transcriptase PCR (RT-PCR) reported in …

ABSTRACT Coronavirus disease 19 (COVID-19)—caused by severe acute respiratory
syndrome coronavirus 2 (SARS-CoV-2)—has spread rapidly around the world. The global …

Introduction Symptomatic testing and asymptomatic screening for SARS-CoV-2 continue to
be essential tools for mitigating virus transmission. Though COVID-19 diagnostics initially …