Detection and Stability of SARS-CoV-2 Fragments in Wastewater: Impact of Storage Temperature

Pathogens. 2021 Sep 18;10(9):1215. doi: 10.3390/pathogens10091215.

Abstract

SARS-CoV-2 wastewater epidemiology suffers from uncertainties concerning sample storage. We show the effect of the storage of wastewater on the detectable SARS-CoV-2 load. Storage at 4 °C for up to 9 days had no significant effect, while storage at -20 °C led to a significant reduction in gene copy numbers.

Keywords: SARS-CoV-2; freezing; stability; storage; wastewater.