The new SARS-Cov-2 coronavirus causes a disease called COVID-19. It can be mistaken with typical influenza, although it is much more contagious, spreads faster and there is no vaccine for it so far. It is transmitted by droplet, especially when coughing, sneezing or speaking. For most patients, the course of the disease is mild, severe complications occur in elderly patients, with reduced immunity and chronic diseases.
