People should not handle any package for at least 3 days after reception assuming this paper is correct (unless they manually disinfect it). EDIT: actually the

People should not handle any package for at least 3 days after reception assuming this paper is correct (unless they manually disinfect it). EDIT: actually the paper doesn't seem to conclude that 3 days is enough, and instead than an unknown number of days, but at least 3, is required, at least relative to their detection method