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加纳的黄热病:从历史爆发中预测出现和生态

Seth D Judson¹, Ernest Kenu², Trevon Fuller³

¹Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America.

PLOS global public health

|October 21, 2024

概括

加纳黄热病在接种疫苗后的病例减少了80%. 生态利基建模识别了高风险地区,有助于未来的预防策略,为这种蚊子传播的疾病.

科学领域:

流行病学流行病学
生态生态学生态生态学
公共卫生公共卫生

背景情况:

加纳是黄热病 (YF) 的高风险国家.
了解YF流行病学和生态学对于预防疫情至关重要.
历史数据为疾病负担和传播模式提供了洞察力.

研究的目的:

估计加纳的疾病负担,生态循环和YF风险地区.
分析儿童疫苗接种实施后年轻人肺炎流行病学的变化.
通过生态利基模型来预测易受YF爆发的地区.

主要方法:

分析历史YF病例和死亡数据 (1910-2022年).
在日常儿童疫苗接种之前和之后的幼年发疹发病率的比较 (1992年).
使用气候,植被和人口密度数据进行生态利基建模.

主要成果:

从1910年到2022年,确定了2387例YF病例和888例死亡 (37.7%CFR).
在1992年接种疫苗后,报告的年均YF病例下降了80%.
地理分布发生了转变,最近的疫情起源于北部地区.
预测的风险区域根据不同的生态传播周期而有所不同.

结论:

儿童接种疫苗在加纳显著降低了青少年肺炎的负担.
生态利基模型揭示了YF风险的独特的时空模式.
调查结果可以为加纳和类似地区的青少年肺炎预防进行地方风险评估提供信息.

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