“Murine Hepatitis Virus Survival on Packaging Materials Does Not Necessarily Indicate Viable Infection at Cold Chain Temperatures”

https://pubmed.ncbi.nlm.nih.gov/38115844

The murine hepatitis virus, used as a model for SARS-CoV-2, can survive on certain packaging materials for up to 28 days at cold chain temperatures, but positive nucleic acid test results may not indicate the presence of viable virus.