Studies show that the COVID-19 virus is able to stay on smooth surfaces like the screens of various mobile devices, paper and metal money, much longer than the flu virus.
Researchers from Australia's National Science Agency found that the SARS-CoV-2 virus remains viable on the surface of a mobile phone screen for up to four weeks. For comparison, in the influenza virus, this figure does not exceed 17 days.
However, in this case, it is worth making a number of clarifications, since we are talking about certain conditions for the experiment - a temperature of +20 ° C in the absence of ultraviolet radiation and complete darkness. The studies also did not use the particles of saliva and phlegm, which usually "accompany" viruses on surfaces and contain white blood cells and antibodies.
Recently, experts have been underestimating the risk of transmission of coronavirus through the surfaces of objects. According to the US Centers for Disease Control (CDC), the main channel for the spread of infection is the smallest droplets of saliva formed when coughing and sneezing. This is also largely facilitated by closed and poorly ventilated rooms, inside which people have to breathe actively - for example, in gyms or places where they practice singing.