Chemical inactivation strategies for SARS-CoV-2-infected cells and organoids

STAR Protoc. 2024 Mar 15;5(1):102906. doi: 10.1016/j.xpro.2024.102906. Epub 2024 Feb 23.

Abstract

Infectious severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) research, conducted in high-containment laboratories, requires transferring samples to lower containment labs for downstream applications, mandating sample inactivation. Here, we present a stepwise protocol for chemical inactivation of SARS-CoV-2 virus in culture supernatants or within infected cells and organoids, using eight chemical reagents validated via plaque assays. Additionally, we describe steps for troubleshooting virus inactivation, titer calculation, and log reduction. This protocol offers valuable resources for the COVID-19 research community, providing essential tools to advance research on this virus.

Keywords: Cell Biology; Cell culture; Cell-based Assays; Microbiology.

MeSH terms

  • Animals
  • COVID-19*
  • Chlorocebus aethiops
  • Organoids
  • SARS-CoV-2*
  • Vero Cells
  • Virus Inactivation