[目的] 旨在对旅行者接种流脑疫苗的免疫效果进行评价。[方法] 2000年2月底,对164名赴麦加的朝觐者实施了流脑疫苗的预防接种,并在其归国后对免疫效果进行追踪调查。[结果] 调查结果显示:164名朝觐者,无1人感染流脑。[结论] 对前往流脑流行地区的旅行者接种流脑疫苗,是防止感染流脑的有效措施,在预防医学免疫学实践中有着重要意义。 [Objective] The aim is to evaluate the immunization effect of travelers vaccinated with meningococcal meningitis. [Method] By the end of February 2000, 164 pilots who went to Mecca were vaccinated against meningoencephalitis and the immunization effect was tracked after their return. [Results] The survey results showed that: 164 pilgrims, none of them infected with meningitis. [Conclusion] It is an effective measure to prevent the infection of meningococcal meningitis. It is of great significance in the prevention of medical immunology.