1.開始施打下列何種疫苗後,使得 Neisseria meningitidis和Streptococcus pneumoniae成為2至50歲腦膜炎最
常見的菌種之一?
A.Haemophilus influenzae Type b conjugate vaccine
B.meningococcal polysaccharide serogroups A, C, W-135 and Y vaccine
C.influenza vaccine
D.Japanese encephalitis inactive virus protein vaccine