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脑膜炎球菌C群(MC)在欧洲及北美的发病率增加,因而普遍接种脑膜炎A+C多糖(MACP)菌苗。但发现MACP菌苗可诱导对MC的低免疫反应,且对婴幼儿的免疫性和保护性均差。已获悉有6例经实验室证
The incidence of meningococcal group C (MC) in Europe and North America has increased, thus generally vaccinating meningitis A + C polysaccharide (MACP) vaccine. However, it was found that the MACP vaccine can induce a low immune response to MC and is poorly immunized and protective against infants and young children. It has been learned that there are 6 cases by laboratory certificate