英语语法分析

Two cerebrospinal fluid specimens have tested positive for Neisseria meningitidis serogroup by latex test.

通过乳胶测试，两个脑脊液标本对脑膜炎奈瑟菌血清群呈阳性反应。

VP7, the most conserved protein of the virion, is serogroup-specific antigen.

VP7蛋白在病毒的各蛋白中最保守，是病毒的血清群特异性抗原。

Serogroup a has been confirmed by the National Institute of Communicable Diseases (NICD).

血清组a已经国家传染病研究所确认。