A new study of how long the coronavirus can live on different surfaces found that it can live on the outside of surgical masks for one week. It died quickly on paper, with no infectious virus detected after three hours, and there was no virus on wood and cloth after two days. For glass and cash, it wasn’t detectable after four days, and on stainless steel and plastic, it took seven days for it to no longer be detectable. They discovered that the virus was sensitive to heat, as well as “susceptible to standard disinfection methods.”