卡疤率的高低是衡量卡介苗接种质量的重要指标,接种质量的好坏又直接影响到卡介苗免疫效果。工作中,卡疤率低一直是基层防疫人员感到棘手的问题。在以往的计划免疫工作考核中,我市卡疤率一直处于较低水平。虽然经常培训预防接种人员(乡村医生),强调接种质量,但卡疤率始终没有明显提高。对此,我们在多年计划免疫工作的实践中,经反复调查讨论,发现卡疤率低的原因,一是每次卡介苗接种对象较少,一支疫苗需接种几个村的孩子,延长了疫 Card scrap rate is a measure of the quality of BCG vaccination an important indicator of the quality of vaccination has a direct impact on the immune effect of BCG. In work, the rate of kelosis has always been a problem for grass-roots epidemic prevention staff. In the past, the assessment of planned immunization work, the city’s scar rate has been at a low level. Although immunization practitioners (rural doctors) are often trained and the quality of vaccination is emphasized, the rate of scarring has not been significantly improved. In this regard, we have planned immunization in many years of practice, after repeated investigations and discussions found that the reasons for the low rate of scar, one for each BCG vaccination less targeted, a vaccine to be vaccinated several village children, extended the epidemic