Rapid detection of SARS-CoV-2, replicating or non-replicating, using RT-PCR

Area of Science:

• Veterinary Virology
• Food Safety Science
• Molecular Diagnostics

Background:

• Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) poses a zoonotic risk, necessitating methods to detect its presence in animals and food products.
• Identifying SARS-CoV-2 in animals is crucial for understanding transmission dynamics and preventing further spread.
• Ensuring the safety of meat products requires reliable methods to detect viral contamination from infected sources.

Purpose of the Study:

• To develop a rapid, safe, and convenient method for detecting SARS-CoV-2 in various sample types.
• To differentiate between replicating and non-replicating SARS-CoV-2, providing critical information on viral activity.
• To establish a versatile assay applicable to other viral detection needs.

Main Methods:

• Development and application of a reverse transcriptase-polymerase chain reaction (RT-PCR) assay.
• The method was designed for rapid detection of viral nucleic acid.
• The assay is capable of identifying SARS-CoV-2 in both active (replicating) and inactive (non-replicating) states.

Main Results:

• A convenient and safe RT-PCR method for rapid SARS-CoV-2 detection was successfully developed.
• The assay can identify the virus in samples from potentially infected animals.
• The method is effective in determining if meat is contaminated from an infected animal, regardless of viral replication status.

Conclusions:

• The developed RT-PCR assay provides a valuable tool for identifying SARS-CoV-2 susceptible animals and detecting contaminated meat.
• This method offers a reliable approach for monitoring viral presence in food safety contexts.
• The strategy's adaptability allows for the development of similar assays for detecting other viruses.