2. COVID-19 is a new infectious disease caused by COVID-19 infection, which is mainly spread through respiratory droplets and close contact.

Almost everyone is not immune from COVID-19 virus, and almost everyone is susceptible to COVID-19 virus.

Safe and effective vaccine is the most powerful weapon to prevent diseases. After vaccination, it can stimulate the human body to produce anti-COVID-19 immunity, prevent COVID-19 infection, and especially effectively reduce severe illness and mortality.

At present, people who are suitable for the vaccine instructions should be vaccinated with COVID-19 vaccine without any contraindications.