Covid19 course and safety at work

COVID-19 also known as SARS-CoV-2 acute respiratory disease or coronavirus disease 2019, is an infectious respiratory disease caused by the virus called SARS-CoV-2 belonging to the coronavirus family. As of September 9, 2021, its apparent lethality rate (CFR) is 2.06%. The death rate from infection (IFR, which includes all infected, even those who contract COVID but do not take a test in which they are positive, or due to lack of availability or because they are asymptomatic or have mild symptoms) was instead estimated, for the first wave of the pandemic, between 0.5 and 2% depending on the country, with strong differences by age group (from 0.004% for children under 34 to 28.3% for those over 85) . Although it is not yet fully understood how the virus is transmitted, it has been confirmed that it is capable of passing from human to human. A public health official in Washington state in the United States noted that coronaviruses are mainly transmitted "through close contact with another individual, most notably by coughing and sneezing on someone else who is within a range of about 1-2 meters. from that person ". Risk assessment acquires a much broader meaning since it extends not to mere internal work activity, but expands with further meanings by going "beyond" the corporate walls: teleworking, smart working, Crowd workers and Bikers.