Gallagher Katherine E, Kelly Helen, Cocks Naomi, Dixon Sandra, Mounier-Jack Sandra, Howard Natasha, Watson-Jones Deborah
London School of Hygiene and Tropical Medicine, Department of Infectious Disease Epidemiology, Keppel St, London WC1E 7HT, United Kingdom.
London School of Hygiene and Tropical Medicine, Clinical Research Department, Keppel St, London WC1E 7HT, United Kingdom.
Papillomavirus Res. 2018 Dec;6:33-40. doi: 10.1016/j.pvr.2018.10.004. Epub 2018 Oct 21.
The World Health Organization (WHO) recommends a 2-dose HPV vaccine schedule for girls aged 9-14 years. As randomised controlled trials assessing the immunogenicity and efficacy of a 1-dose schedule are ongoing, we interviewed immunisation programme managers and advisors in low and middle-income countries (LMIC) about a hypothetical, future reduction in the HPV vaccine schedule.
We conducted semi-structured interviews with LMIC immunisation programme managers and national immunisation technical advisory group members (key informants; KIs) in 2017, recruited for their knowledge/experience in national HPV vaccine policy and provision. Data were analysed thematically.
We conducted 30 interviews with KIs from 18 countries. Perceived advantages of a 1-dose schedule included reduced logistical and financial resources needed for vaccine delivery, fewer cold chain requirements and easier integration into routine immunisation services. Perceived challenges included health worker hesitancy, resources needed to re-mobilise communities and re-train health workers, potential misrepresentation of schedule changes by anti-vaccine groups or the media. Half of interviewees suggested a WHO recommendation would be necessary prior to policy change.
We found wide-ranging support among LMIC immunisation managers and advisors for a 1-dose vaccine schedule if research demonstrated immunological and clinical evidence of efficacy, and WHO provided a formal recommendation.
世界卫生组织(WHO)建议为9至14岁女孩采用两剂人乳头瘤病毒(HPV)疫苗接种程序。由于评估单剂接种程序免疫原性和效力的随机对照试验正在进行中,我们就HPV疫苗接种程序未来可能的简化情况,采访了低收入和中等收入国家(LMIC)的免疫规划管理人员和顾问。
2017年,我们对LMIC的免疫规划管理人员和国家免疫技术咨询小组成员(关键信息提供者;KIs)进行了半结构化访谈,这些人员因在国家HPV疫苗政策和供应方面的知识/经验而被招募。对数据进行了主题分析。
我们对来自18个国家的关键信息提供者进行了30次访谈。单剂接种程序的潜在优势包括疫苗接种所需的后勤和财政资源减少、冷链要求降低以及更容易纳入常规免疫服务。潜在挑战包括卫生工作者的犹豫态度、重新动员社区和重新培训卫生工作者所需的资源、反疫苗组织或媒体对接种程序变化的不实报道。一半的受访者表示,在政策改变之前,WHO的建议是必要的。
我们发现,如果研究证明了单剂疫苗接种程序在免疫和临床方面的效力证据,且WHO给出了正式建议,那么LMIC的免疫管理人员和顾问对单剂疫苗接种程序会有广泛支持。