大规模接种疫苗后登革热发病率:巴西帕拉纳州的一项中断时间序列研究
Magda Clara Vieira da Costa-Ribeiro1,2, Elias Teixeira Krainski3, Angela Maron de Mello4
1Postgraduate Program in Microbiology, Parasitology and Pathology, Department of Basic Pathology, Federal University of Paraná, Curitiba 80060-000, Brazil.
Tropical medicine and infectious disease
|January 27, 2026
概括
巴西帕拉纳州的登革热疫苗接种活动显著降低了登革热发病率,特别是在疫苗覆盖率较高的较小市镇. 这项研究强调了疫苗接种对控制登革热疫情的影响.
科学领域:
- 公共卫生 公共卫生
- 流行病学 流行病学
- 疫苗学 疫苗学 疫苗学
背景情况:
- 自1995年以来,巴西帕拉纳州的登革热传播显著增加,北部地区频繁爆发.
- 生态研究对于了解人口层面的健康趋势和干预影响至关重要.
研究的目的:
- 评估一项登革热疫苗接种活动对巴西帕拉纳州30个市镇登革热发病率的影响.
- 使用中断时间序列分析和Poisson回归来建模登革热发病率.
主要方法:
- 通过使用来自巴西官方登记册的数据,进行了为期15年的间断时间序列生态研究.
- 模拟登革热发病率使用波桑回归,调整人口,气候和流行病学因素.
- 分析了特定于每个地点的时间变化.
主要成果:
- 据估计,在实现了三剂疫苗接种覆盖率的情况下,登革热发病率相对减少了8.2%.
- 预计100%的疫苗接种覆盖率将使登革热发病率降低18.7%.
- 由于覆盖率更高,在较小的市镇,疫苗接种活动更有效.
结论:
- 登革热疫苗接种运动在研究的市镇中显著影响了降低登革热发病率趋势.
- 较高的疫苗接种覆盖率,特别是在较小的城市,与登革热发病率的较大降低相关.
- 这些发现支持持续实施和优化登革热疫苗接种战略.
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