A Clinical Trial of Quadrivalent Influenza Vaccine in Healthy Subjects Aged 6 to 35 Months

Exclusion Criteria

• •Received any circulating seasonal influenza vaccine prior to enrollment or had an influenza vaccine schedule during the study;
• •Suffering from seasonal influenza in the past 6 moths;
• •Axillary temperature \>37.0°C;
• •History of asthma, history of allergy to the vaccine or vaccine components, or serious adverse reactions to the vaccine, such as urticaria, dyspnea, and angioedema;
• •Congenital malformations or developmental disorders, genetic defects, severe malnutrition, etc.;
• •Severe chronic diseases(Such as down syndrome, diabetes, sickle cell anaemia or neurological disorders);
• •Severe neurological disease (epilepsy, convulsions or convulsions) or mental illness;
• •Autoimmune disease or immunodeficiency / immunosuppression;
• •Thyroid disease or history of thyroidectomy, asplenia,functional asplenia, asplenia or splenectomy resulting from any condition;
• •Diagnosed abnormal blood coagulation function (eg, lack of blood coagulation factors, blood coagulopathy, abnormal platelets) or obvious bruising or blood coagulation;
• •Immunosuppressive therapy, cytotoxic therapy, inhaled corticosteroids (excluding allergic rhinitis corticosteroid spray therapy, acute noncomplicated dermatitis superficial corticosteroid therapy) in the past 6 months;
• •Acute diseases or acute exacerbation of chronic diseases in the past 3 days;
• •Receipt of blood products within in the past 3 months;
• •Receipt of other investigational drugs in the past 30 days;
• •Receipt of attenuated live vaccines in the past 14 days;
• •Receipt of inactivated or subunit vaccines in the past 7 days;
• •Participated in other clinical trials before enrollment and in the follow-up period, or plans to participate in other clinical trials during the clinical trial;
• •According to the investigator's judgment, the subject has any other factors that are not suitable for participating in the clinical trial