Unvaccinated people who have not received the novel coronavirus vaccine are more likely to be infected with the virus than vaccinated people, or are at greater risk of developing a severe form of the disease after infection. Novel Coronavirus Pneumonia is an inflammation of the lungs caused by Novel Coronavirus infection, which may present clinically as a dry cough, malaise, and fever. The new coronavirus vaccine is a vaccine that specifically targets the new coronavirus, including recombinant protein vaccine, nucleic acid vaccine, live attenuated vaccine, inactivated vaccine, etc. Due to individualized differences, some people may experience side effects such as fever, redness, swelling, and pain at the site of the vaccination, but overall, the safety is relatively high. New coronavirus is highly contagious and is still mutating, the spread of new coronavirus has not yet been completely controlled effectively, and the new coronavirus vaccine is a more effective way to prevent the spread of new coronavirus. Therefore, if you have not been vaccinated with the new coronavirus vaccine, it is recommended that you get vaccinated in a timely manner. Tip: In this article, the terms “neocoronavirus pneumonia” and “new coronavirus pneumonia” were renamed to “new coronavirus infection” on December 26, 2022, as announced by the National Health Commission.