Participation in national polio immunization days: results of a vaccine coverage survey among children in 27 Brazilian cities
Participation in national polio immunization days: results of a vaccine coverage survey among children in 27 Brazilian cities
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DOI：
10.1590/s1415-790x2010000200010
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发表时间：
2010-06-01
影响因子：
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通讯作者：
Flannery, Brendan
中科院分区：
文献类型：
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作者：
Mello, Maria Lúcia Rocha;Moraes, José Cássio;Flannery, Brendan
在巴西，国家免疫日 (NID) 每年举办两次，以维持脊髓灰质炎的消除并为五岁以下儿童提供常规免疫接种。很少有研究探讨与巴西儿童参加国家免疫日相关的因素，或免疫日对推荐疫苗覆盖率的贡献。方法：我们在 26 个州首府和联邦区对 19 至 35 个月大的儿童进行了家庭整群调查。获得了疫苗接种历史，包括疫苗接种日期、最近一次 NID 的参与情况或不参与的原因。将调查估计值与基于施用剂量的官方估计值进行比较。结果：在接受调查的 17,749 名儿童中，有 16,213 名 (91%) 参加了最近的 NID。在私营部门接受疫苗接种的儿童参与 NID 的比例最低（84%）。在 13 个国家的首都，官方覆盖率估计值高于调查结果。不参加最近一次 NID 的主要原因包括家长决定不参加、医生的建议、孩子的疾病以及与 NID 组织相关的因素。总体而言，15% 的受访儿童在最近一次 NID 中除口服脊髓灰质炎疫苗外还接受过至少一种免疫接种，包括黄热病、乙型肝炎、麻疹-腮腺炎-风疹 (MMR) 和白喉-破伤风-百日咳-b 型流感嗜血杆菌联合疫苗。结论：在巴西首都，国家免疫日继续受到民众的高度认可，并提供了完成建议的免疫计划的机会。不参与的原因表明，需要采取不同的沟通策略来接触那些不带孩子接种 NID 疫苗的父母。
In Brazil, National Immunization Days (NIDs) are held twice a year to maintain the elimination of poliomyelitis and to provide routine immunization for children younger than five years of age. Few studies have examined factors associated with participation in National Immunization Days among Brazilian children, or the contribution of immunization days to the coverage of recommended vaccines. METHODS: We conducted a household cluster survey in 26 state capitals and the Federal District among children aged 19 to 35 months. Vaccination histories, including dates of vaccination, participation in the most recent NID or reasons for non-participation were obtained. Survey estimates were compared with official estimates based on doses administered. RESULTS: Among the 17,749 children surveyed, 16,213 (91%) participated in the most recent NID. Children who received vaccination in the private sector had the lowest participation (84%) in NIDs. In 13 capitals, official coverage estimates were higher than those from the survey. The main reasons given for non-participation the most recent NID included parent's decision not to participate, doctor's advice, child's illness, and factors associated with the organization of the NID. Overall, 15% of the children surveyed had received at least one immunization in addition to oral polio vaccine in the most recent NID, including yellow fever, hepatitis B, measles-mumps-rubella (MMR) and combined diphtheria-tetanus-pertussis-Haemophilus influenzae type b vaccines. CONCLUSIONS: In Brazilian capitals, National Immunization Days continue to enjoy high levels of acceptance by the population and offer opportunities to complete recommended immunization schedules. Reasons for non-participation suggest the need for different communication strategies to reach parents who do not bring their children for vaccination on NIDs.