Vaccinate Meningococcal Polysaccharide Vaccine

1.Group ACYW135                             2.Group A+C                                      3.prevent epidemic cerebrospinal meningitis                                                    4.purified capsular polysaccharide antigens  The vaccine is indicated for active immunization against invasive meningococcal disease caused by epidemic Neisseria meningitidis serogroups A,C,Y,W135. [Description]The vaccine is a preparation of preparation polysaccharide antigens extracted from the culture of Neisseria meningitidis group ACYW135 respectively and Iyophilized after addition of an appropriate stabilizer. The final product looks like a white crisp cake. It shall dissolve in the accompanying Phosphate buffered saline (PBS) immediately, and turn into a clear liquid after reconstitution.Active constituent: Neisseria meningitidis group ACYW135 capsular polysaccharides.Subsidiary materials: All the components of subsidiary materials approved shall be listed.Vaccine diluent: Sterile, pyrogen-free PBS. [Vaccination Subjects]   At present, the vaccine is only recommended to be used in high-risk population (children and adults) over 2 years of age in the following conditions:(1) Trave