The clinical trial was designed to evaluate the safety against Group ACYW135 Meningococcal Polysaccharide Vaccine of Hualan administered on subjects 2 years of age and older.

Complying with requirements of the approval letter of clinical trial issued by SFDA (Approval Letter No.: 2006L01017), Hualan conducted phase I clinical trial of Group ACYW135 Meningococcal Polysaccharide Vaccine. The safety end points were the presence of any systemic, local and adverse reaction.

Inclusion Criteria:

• Healthy permanent residence 2 years of age and older, the subjects (or their guardians) are able to understand and sign the informed consent;
• Healthy male or female by oral history, physical examination and clinical judgment and who complies with vaccination of this product;
• Be able to comply with the requirements of clinical trial protocol and immunogenicity examination;
• Have no history of vaccination within the past 3 months and vaccination with other products within the last 2 weeks;
• Axillary temperature ≤37.0℃.

Exclusion Criteria:

• Any acute disease, such as: tumor, autoimmunity disease, progressive atherosclerotic disease or diabetes with complication, chronic obstructive pulmonary disease need oxygen uptake, acute or progressive hepatopathy or nephropathy, congestive heart-failure, etc.;
• Allergic to vaccines or drugs (history of allergy to any vaccine in the past);
• History of neurologic symptom or signs;
• Known or suspected (or high risk) impaired or abnormal immune function, e.g.: receive immunosuppressant or immunopotentiator therapy, take immunoglobulin or blood product or plasma extract (except the gastrointestinal tract) within the past 3 months, HIV infection or related disease, etc.;
• History of meningitis infection or vaccination of meningococcal vaccine within the past 3 months;
• History of receiving other vaccines or immunoglobulin injection or any research drugs;
• Any acute disease needing application of antibiotics or anti-virus treatment in the whole body within the past 1 week;
• History of fever within the past 3 days (axillary temperature ≥38.0℃);
• Participating in another clinical trial;
• History of allergy, eclampsia, epilepsy, encephalopathy and mental disease or family disease;
• Thrombopenia or other coagulopathy that may cause contraindication to intramuscular injection;
• Acute chronic disease (such as Down syndrome, diabetes, sickle cell anemia or neurologic disease, Guillain-Barre Syndrome);
• Known or suspected diseases, including: respiratory system disease, acute infection or active stage of chronic disease, SBAV infection of children or mothers, cardiovascular disease, acute hypertension, cancer treatment, skin disease, etc.;
• Pregnancy;
• Any condition that, in the judgment of investigator, may affect trial assessment.