Keywords Serogroup A Neisseria meningitides;Polymerase chain reaction;Multilocus sequence typing;Meningococcal meningitis;Pulsed-field gel electrophoresis;

• 群脑膜炎奈瑟氏菌;多聚酶链式反应;脉冲场凝胶电泳;流脑;多位点序列分析;