大连市乙肝疫苗查漏补种情况调查

[目的]了解大连市乙肝疫苗漏种的情况及其影响因素。[方法]2006年10月至2007年5月开展了大连市2002年7月1日至2006年9月3013出生儿童的乙肝疫苗查漏补种工作，对于在补种过程中新发现的漏种儿童，按照“随时发现，随时补种”的原则进行补种。[结果]本次“查漏补种”工作共摸底调查263727名儿童，查出漏种儿童2017人，漏种率为0．76％，应补种针次4198针次；实补种1933人，补种率为95．84％。大连市乙肝疫苗近5年平均接种率为99．9％，漏种率较低；流动儿童较本地常住儿童漏种率高（P〈0.05），补种率低（P〈0．05）。[结论]流动儿童中仍存在免疫空白现象。

Investigation on Missing Immunization of Hepalitis B Vaccine in Dalian

[Objective]To understand the status of missing immunization of hepatitis B vaccine and its influencing factors in Dalian. [Methods]Inspection of missing immunization of hepatitis B vaccine for children born between July 1,2002 and September 30,2006 in Dalian was conducted from October 2006 to May 2007, the children who are missing immunization were vaccinated as soon as they are detected. [Results]263 727 children were investigated in this activity, 2 017 children were missing immunization ,accounting for 0.76 %. 4 198 target doses must be given,the vaccinated children were 1 933, accounting for 95.84%. The average coverage rate was 99.9% in the 5 years. Missing immunization rate was low, the missing immunization rate was higher among floating children than that the local children （ P〈0.05）, the vaccination rate was lower for the floating children who are missing immunization.[Conelusion] Immunization blank still existed among floating children.