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印度乙型肝炎疫苗引入评估:免疫规划中新疫苗推出和扩大规模的经验教训。

An assessment of hepatitis B vaccine introduction in India: Lessons for roll out and scale up of new vaccines in immunization programs.

机构信息

World Health Organization- India/National Polio Surveillance Project, New Delhi, India.

出版信息

Indian J Public Health. 2013 Jan-Mar;57(1):8-14. doi: 10.4103/0019-557X.111357.

Abstract

BACKGROUND

Hepatitis B vaccine was introduced in the Universal Immunization Program (UIP) of 10 states of India in the year 2007-08. This assessment was planned and conducted to ascertain the reasons for low reported coverage of Hepatitis B (Hep B) vaccine in comparison of similarly timed diphtheria, pertussis, and tetanus (DPT) vaccine; to identify operational and programmatic challenges in new vaccine introductions, and to derive lessons for scale up of Hep B vaccination (or for introduction of any new vaccine) in UIP of India.

MATERIALS AND METHODS

Purposive sampling with both quantitative and qualitative data collection. Two districts each were purposively selected from 5 of the 10 states, which introduced Hep B vaccine, in the year 2007-08, in India. A protocol was devised and data was collected through desk review, in-depth interviews and on-site observation at state, districts and facility levels. The assessment was completed in December 2009.

RESULTS

Coverage with three doses of Hep B vaccine was lower than similarly timed three doses of DPT vaccine. Poor stock management ("stock outs or nil stocks" at various levels), incomplete recording and reporting, perceived costly vaccine & related fear of wastage of vaccine in 10 dose vial, and incomplete knowledge amongst health functionaries about vaccination schedule were the main reasons cited for reported lower coverage. Hep B vaccine birth dose was introduced in only 3 of 5 states evaluated. The additional reasons for low Hep B birth dose coverage were lack of knowledge amongst Health Workers about birth dose administration, no mechanism for recording birth dose, and insufficient trainings, official communications, and coordination at various levels.

CONCLUSIONS

There had been a few challenges in the introduction of Hepatitis B vaccination in India, however, this provide opportunity to learn for future scale up. For successful introduction and expansion of any new vaccine in national or state immunization program; clear and timely central level instructions and oversight and improved stock management is required. At state and district levels; quality trainings, effective supervision and monitoring, improving data recording and reporting are key factor for success. The additional focus on Hep B birth dose administration may help in improving coverage.

摘要

背景

2007-08 年,印度 10 个邦将乙肝疫苗纳入了常规免疫规划(UIP)。本评估旨在确定乙肝疫苗报告覆盖率较同期白喉、百日咳和破伤风(DPT)疫苗低的原因;确定新疫苗接种中的运营和规划挑战,并为印度 UIP 扩大乙肝疫苗接种(或引入任何新疫苗)汲取经验教训。

材料和方法

采用定量和定性数据收集的目的性抽样。从印度于 2007-08 年引入乙肝疫苗的 10 个邦中,每个邦各选择了 2 个区。制定了一份方案,并通过桌面审查、深入访谈和州、区和设施各级的现场观察收集数据。评估于 2009 年 12 月完成。

结果

乙肝疫苗的 3 剂次接种覆盖率低于同期 DPT 疫苗的 3 剂次接种覆盖率。库存管理不善(各级均存在“缺货或无库存”)、记录和报告不完整、认为疫苗昂贵且担心 10 剂量小瓶疫苗浪费,以及卫生工作者对免疫接种时间表了解不足,是报告覆盖率较低的主要原因。在所评估的 5 个邦中,仅有 3 个邦将乙肝疫苗的出生剂量纳入免疫规划。乙肝疫苗出生剂量覆盖率低的其他原因包括卫生工作者对出生剂量接种的知识不足、没有记录出生剂量的机制,以及各级培训、正式沟通和协调不足。

结论

印度在乙肝疫苗接种方面存在一些挑战,但这为未来的扩大规模提供了机会。为了在国家或州免疫规划中成功引入和扩大任何新疫苗,需要中央层面提供明确和及时的指导和监督,并改善库存管理。在州和区层面,关键因素是高质量的培训、有效的监督和监测、改善数据记录和报告。重点关注乙肝疫苗的出生剂量接种可能有助于提高覆盖率。

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