Lab practices that improve coronavirus disease 2019 detection accuracy using real-time PCR

Area of Science:

• * Medical Diagnostics
• * Virology
• * Molecular Biology

Background:

• * The emergence of severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) variants has increased coronavirus disease 2019 (COVID-19) cases globally.
• * Accurate diagnostic testing is essential for managing the pandemic.
• * Real-time reverse transcriptase PCR (RT-PCR) is the gold standard for SARS-CoV-2 detection, but inaccuracies persist.

Purpose of the Study:

• * To identify common errors in the COVID-19 RT-PCR testing process.
• * To propose effective strategies for overcoming these testing inaccuracies.
• * To optimize the reliability of COVID-19 diagnostic detection.

Main Methods:

• * Review of potential error sources in the COVID-19 RT-PCR workflow.
• * Analysis of factors influencing test accuracy from sampling to result interpretation.
• * Synthesis of best practices for accurate molecular testing.

Main Results:

• * Inaccurate results (false-negatives/false-positives) can occur at multiple stages of the RT-PCR process.
• * Errors may stem from sampling techniques, reagent quality, laboratory protocols, and data analysis.
• * Specific procedural improvements can significantly enhance test reliability.

Conclusions:

• * Optimizing COVID-19 testing requires meticulous attention to detail throughout the entire process.
• * Adherence to correct swabbing techniques and validated RT-PCR kits is vital.
• * Clear laboratory guidelines and proper result interpretation are crucial for accurate SARS-CoV-2 detection.