The new coronavirus pneumonia, which is classified as a Category B infectious disease in China, is currently managed as a Category A infectious disease, so it is indeed a contagious disease. For coronaviruses, the currently identified routes of transmission are through droplet transmission and contact transmission, so the new coronavirus is still quite or somewhat contagious, which is also an important reason why isolation and close contact management must be done. High concentration aerosols can also cause infection, and their potential to cause infection is also being recognized. This is why novel coronavirus pneumonia, as a contagious disease, must not be taken lightly. Try to minimize going out, wear a mask when you go out, wash your hands regularly when you go home, and disinfect your belongings as necessary. Source: Dr. Yurai