对云南省广南及河口两县进行健康人群流脑带菌调查 ,结果检出流脑带菌者 3 3人 ,带菌率为 8 3 1% ,其中A群带菌 7人 ,B群带菌 2 0人 ,带菌率分别为 1 76%和 5 0 4% ,带菌菌群以B群为主 A total of 33 meningococcal carriers were detected in the counties of Guangnan and Hekou in Yunnan Province. The results showed that 33 were carriers of meningococcal meningitis and the carrier rate was 83.1%, of which 7 in group A, 20 in group B, The carrier rates were 1 76% and 50 4%, respectively, and the group B belonged to bacteria-carrying groups