对苏州市两个街道 2 5 45名 1～ 5周岁儿童接种b型流行性感冒嗜血杆菌 (Hib)疫苗的情况和未接种原因作了调查。在2 5 45中人接种了 1398人 ,接种率 5 4 93 %。年龄越小 ,接种率越高 (χ2 =175 ,P<0 0 1)。干部、外来人员、个体户、工人、经济收入较低家庭及家长低学历家庭的儿童接种率较高 (P <0 0 1)。全身反应和局部反应分别为 1 0 7%和 1 5 0 % ,表明该疫苗是安全的。人们对Hib危害的认识、医务人员的宣传及疫苗的价格是影响Hib疫苗推广的重要因素 Investigations were conducted on the vaccination of 2 451 children aged 1 to 5 years in two streets of Suzhou City and on the causes of unvaccinated Hib vaccine. In 2545, 1398 people were vaccinated and the vaccination rate was 5493%. The younger, the higher the vaccination rate (χ2 = 175, P <0.01). Child vaccination rates were higher among cadres, migrant workers, self-employed households, workers, lower-income families and parents with less-educated families (P <0.01). The systemic and local reactions were found to be 107% and 150%, respectively, indicating that the vaccine is safe. People’s awareness of the dangers of Hib, the publicity of medical personnel and the price of vaccines are important factors that influence the promotion of Hib vaccine