Conclusion the developed synthetic medium and purification procedure were feasible and provided an experimental basis for the preparation of tetravalent meningococcus polysaccharide vaccine.

结论所研制的综合培养基及多糖纯化的工艺具有较好的可行性，为四价脑膜炎球菌多糖疫苗的研制提供了试验基础。

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There are vaccines for other meningococcus strains, but a vaccine for the group B strains had been eluding microbiologists because their surface sugars are identical to human ones.

FORBES: Booster Shot