This article was originally published here
Emerg Infect Dis. 2021 Sep 24;27(12). doi: 10.3201/eid2712.211621. Online ahead of print.
The infectivity of severe acute respiratory syndrome coronavirus 2 in deceased persons and organisms remains unclear. We studied transgenic K18 hACE2 mice to determine the kinetics of virus infectivity after host death. Five days after death, virus infectivity in the lung declined by >96% and RNA copies declined by 48.2%.