b型流感杆菌(Hib)最近在芬兰已成为健康儿童群各种感染中最重要的病因。1985～1986年的综合调查表明5岁以下儿童每年各类细菌性疾病中Hib疾病的发病率为52/10万,b型流感杆菌疾病发病年龄的分布数与欧洲其他国家相似。芬兰儿童的发病高峰期在9～10月龄。因此,对儿童及婴儿进行免疫可避免大量Hib的感染。 Hib (b) has recently become the most important cause of various infections in healthy children in Finland. A comprehensive survey from 1985 to 1986 showed that the prevalence of Hib disease among various types of bacterial diseases in children under 5 years of age was 52/10 million per year. The distribution of influenza b-type disease at the age of onset was similar to that of other European countries. The peak incidence of children in Finland at 9 to 10 months of age. Therefore, immunization of children and infants avoids the high number of Hib infections.