Those who have not received the new coronavirus vaccine need to be vaccinated before it is too late if there are no contraindications, and if there are contraindications, they need to take appropriate precautions to avoid infection. The main purpose of the new coronavirus vaccine is to prevent infection by the new coronavirus. People who have been vaccinated have relatively high immunity to the virus and have a relatively low risk of infection. Unvaccinated people lack the appropriate immunity and are at risk of infection. It is best to get vaccinated as soon as possible, as long as there are no relevant conditions that make vaccination inappropriate. In general, cardiovascular patients in an unstable state, patients with terminal tumors, uncontrolled epilepsy and other severe neurological disorders, those who are allergic to vaccine components and excipients should not be vaccinated, and pregnant women, those with acute exacerbations of chronic diseases, and patients with uncontrolled severe chronic diseases should not be vaccinated with NeoCornavirus vaccine. People who are not suitable for vaccination with the new coronavirus vaccine do not need to be vaccinated, and they need to be well protected on a daily basis by avoiding travel to medium- and high-risk areas and reducing unnecessary travel movements and human contact. Once symptoms such as cough, fever and other related symptoms appear, go to designated hospitals immediately for medical consultation.