Laboratory Testing Methods for Novel Severe Acute Respiratory Syndrome-Coronavirus-2 (SARS-CoV-2)

Area of Science:

• Virology
• Infectious Diseases
• Diagnostic Medicine

Background:

• The global outbreak of coronavirus disease-19 (COVID-19) necessitates rapid and accurate diagnostic methods for severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2).
• Effective tracking and public health interventions depend on reliable testing to manage disease spread.
• Key components for viral diagnostics include sample collection, viral sequence availability, and efficient laboratory testing.

Purpose of the Study:

• To review current laboratory testing methods for coronaviruses, with a focus on the COVID-19 pandemic.
• To highlight the importance of diagnostic testing in controlling the spread of emerging viral infections.

Main Methods:

• Discussion of established molecular diagnostic techniques such as real-time reverse transcriptase-polymerase chain reaction (RT-PCR) for viral nucleic acid detection.
• Overview of serological methods including enzyme-linked immunoassays (EIA) for antibody and antigen detection.
• Mention of serum viral neutralization (SVN) assays for assessing antibody neutralization capacity.

Main Results:

• Real-time RT-PCR is the current gold standard for qualitative and quantitative detection of SARS-CoV-2.
• Enzyme-linked immunoassays and serum viral neutralization assays are also relevant for antibody and antigen detection.
• Challenges in diagnostic test development include detecting low viral loads, ensuring specificity, and rapid result delivery.

Conclusions:

• The development and implementation of rapid, accurate diagnostic tests are crucial for managing the COVID-19 pandemic.
• Point-of-care molecular devices are being integrated to enhance the speed and accuracy of SARS-CoV-2 diagnosis.
• Continued research and development in diagnostic technologies are essential for future emerging coronavirus outbreaks.