예방접종을 받은 후 뇌수막염에 걸릴 확률은 얼마나 되나요?
백신을 맞은 사람이 뇌수막염을 전염시킬 가능성은 얼마나 되나요?
How likely is it to get meningitis after getting vaccination done?
How likely is someone to give meningitis to someone if he's gotten the vaccine?