"Viruses travel across borders. At present, the outbreak of COVID-19 is spreading exponentially across the world with multiple epicenters. In the face of this common challenge, all countries in the world should watch out for and help one another. As a responsible big country, China actively supports and participates in international cooperation to fight the epidemic. spares no effort to safeguard regional and international public health and security, and promotes the building of a community with a shared future for mankind. This booklet is to disseminate knowledge about COVID-19 and to provide a clearer picture of the epidemic situation, so that people can stay calm, be better prepared, and protect themselves more effectively."