The new coronavirus vaccine is reliable. The New Crown vaccine is mainly used to prevent the new coronavirus, which is generally safe and can reduce the probability of contracting the new coronavirus, as well as reduce the probability of the infection turning into a serious illness. There may be some adverse reactions after vaccination, such as localized mild pain and swelling, and some patients may also have low fever, dizziness and fatigue. These adverse reactions can mostly subside on their own in 2~3 days and do not require special treatment. Some patients may have more serious adverse reactions, such as anaphylaxis, laryngeal edema, etc., but generally this is rare and requires immediate medical attention. Note that vaccination is not recommended for people who are allergic to vaccine components, pregnant women, fever, suffering from acute illnesses, chronic disease seizures, people with immune function deficiencies, and patients with uncontrolled epilepsy.