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B Part of It School Leaver Study: A Repeat Cross-Sectional Study to Assess the Impact of Increasing Coverage With Meningococcal B (4CMenB) Vaccine on Carriage of Neisseria meningitidis
The Journal of Infectious Diseases ( IF 6.4 ) Pub Date : 2021-09-06 , DOI: 10.1093/infdis/jiab444
Mark McMillan 1, 2 , Ann P Koehler 3 , Andrew Lawrence 4 , Thomas R Sullivan 5, 6 , Jana Bednarz 6 , Jenny M MacLennan 7 , Martin C J Maiden 7 , Shamez N Ladhani 8 , Mary E Ramsay 8 , Caroline Trotter 8, 9 , Ray Borrow 10 , Adam Finn 11 , Charlene M Kahler 12 , Jane Whelan 13 , Kumaran Vadivelu 14 , Peter C Richmond 15, 16, 17 , Helen S Marshall 1, 2
Affiliation  

Background Recombinant protein-based vaccines targeting serogroup B meningococci protect against invasive disease but impacts on carriage are uncertain. This study assessed carriage prevalence of disease-associated meningococci in 2018–2020 as the proportion of vaccinated adolescents increased following introduction of a school-based 4CMenB immunization program. Methods Eligible participants who completed high school (aged 17–25) in South Australia in the previous year had an oropharyngeal swab taken and completed a risk factor questionnaire. Disease-associated meningococci (genogroups A, B, C, W, X, Y) were detected by meningococcal and genogroup-specific polymerase chain reaction. Results The analysis included 4104 participants in 2018, 2690 in 2019, and 1338 in 2020. The proportion vaccinated with 4CMenB increased from 43% in 2018, to 78% in 2019, and 76% in 2020. Carriage prevalence of disease-associated meningococci in 2018 was 225/4104 (5.5%). There was little difference between carriage prevalence in 2019 (134/2690, 5.0%; adjusted odds ratio [aOR], 0.82; 95% confidence interval [CI], .64–1.05) and 2020 (68/1338, 5.1%; aOR, 0.82; 95% CI, .57–1.17) compared to 2018. Conclusions Increased 4CMenB uptake in adolescents was not associated with decline in carriage of disease-associated meningococci. 4CMenB immunization programs should focus on direct (individual) protection for groups at greatest risk of disease. Clinical Trials Registration NCT03419533.

中文翻译:

B 部分离校生研究:一项重复的横断面研究,以评估增加 B 型脑膜炎球菌 (4CMenB) 疫苗的覆盖率对脑膜炎双球菌携带的影响

背景 针对血清群 B 脑膜炎球菌的重组蛋白疫苗可预防侵袭性疾病,但对携带的影响尚不确定。本研究评估了 2018-2020 年与疾病相关的脑膜炎球菌的携带率,因为在引入以学校为基础的 4CMenB 免疫计划后,接种疫苗的青少年比例增加。方法 上一年在南澳大利亚完成高中(17-25 岁)的合格参与者采集口咽拭子并完成风险因素问卷。通过脑膜炎球菌和基因组特异性聚合酶链反应检测与疾病相关的脑膜炎球菌(基因组 A、B、C、W、X、Y)。结果 分析包括 2018 年 4104 名参与者、2019 年 2690 名参与者和 2020 年 1338 名参与者。接种 4CMenB 疫苗的比例从 2018 年的 43% 增加,2019 年为 78%,2020 年为 76%。2018 年疾病相关脑膜炎球菌的携带率为 225/4104(5.5%)。2019 年(134/2690,5.0%;调整优势比 [aOR],0.82;95% 置信区间 [CI],0.64-1.05)和 2020 年(68/1338,5.1%;aOR)之间的携带率几乎没有差异, 0.82; 95% CI, .57–1.17) 与 2018 年相比。结论 青少年 4CMenB 摄取增加与疾病相关脑膜炎球菌携带率下降无关。4CMenB 免疫计划应侧重于对疾病风险最高的群体的直接(个体)保护。临床试验注册 NCT03419533。与 2018 年相比,95% 置信区间 [CI],0.64–1.05)和 2020 年(68/1338,5.1%;aOR,0.82;95% CI,0.57–1.17)。减少与疾病相关的脑膜炎球菌的携带。4CMenB 免疫计划应侧重于对疾病风险最高的群体的直接(个体)保护。临床试验注册 NCT03419533。与 2018 年相比,95% 置信区间 [CI],0.64–1.05)和 2020 年(68/1338,5.1%;aOR,0.82;95% CI,0.57–1.17)。减少与疾病相关的脑膜炎球菌的携带。4CMenB 免疫计划应侧重于对疾病风险最高的群体的直接(个体)保护。临床试验注册 NCT03419533。
更新日期:2021-09-06
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