Laboratory Considerations for Reporting Cycle Threshold Value in COVID-19

The Coronavirus Disease 2019 (COVID-19) pandemic is caused by the SARS-CoV-2 RNA virus. Nucleic acid amplification testing (NAAT) is the mainstay to confirm infection. A large number of reverse transcriptase polymerase chain reaction (RT-PCR) assays are currently available for qualitatively assessing SARS-CoV-2 infection. Although these assays show variation in cycle threshold values (Ct), advocacy for reporting Ct values (in addition to the qualitative result) is tabled to guide patient clinical management decisions. This article provides critical commentary on qualitative RT-PCR laboratory and clinical considerations for Ct value reporting. Factors contributing to Ct variation are discussed by considering relevant viral life-cycle factors, patient factors and the laboratory total testing processes that contribute to the Ct variation and mitigate against the reporting of Ct values by qualitative NAAT.

A pandemic guided by the SARS-CoV-2 PCR test: What should the clinician know?

Amidst an ever-evolving pandemic, the demand for timely and accurate diagnosis of coronavirus disease 2019 (COVID-19) continues to increase. Critically, managing and containing the spread of the disease requires expedient testing of infected individuals. Presently, the gold standard for the diagnosis of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection remains the polymerase chain reaction (PCR) test. Potential vulnerabilities of this testing methodology can range from preanalytical variables to laboratory-related analytical factors and, ultimately, to the interpretation of results.

Fake news and fallacies: Exploring vaccine hesitancy in South Africa.

Historically, vaccine hesitancy (VH) has been a thorn in the side of public health efforts to contain and eradicate infectious diseases. This phenomenon is magnified in light of the current coronavirus disease 2019 (COVID-19) pandemic. Surveys conducted across South Africa since the outbreak of COVID-19 demonstrate the complexity of factors that contribute towards VH in this population. Amidst the negative press that the COVID-19 vaccine has received, especially across social media, understanding and combatting VH remains important to achieve herd immunity. This article aims to shed light on key factors fuelling COVID-19 VH in South Africa and provides a framework from which to address this problem.