预测佛罗里达州埃弗格莱德斯病毒的潜在传播风险,使用蚊子血液食识别
Kristin E Sloyer1, Narayani Barve2, Dongmin Kim1
1Department of Entomology & Nematology, Florida Medical Entomology Laboratory, Institute of Food and Agricultural Sciences, University of Florida, Vero Beach, FL, United States.
Frontiers in epidemiology
|March 8, 2024
概括
通过分析载体与宿主相互作用,生态利基建模预测了佛罗里达州埃弗格莱德斯病毒 (EVEV) 传播风险. 这些发现突出了高风险地区,有助于对这种树冠病毒进行有针对性的监测.
科学领域:
- 植物病毒学和疾病生态学.
- 生态利基模型的建模.
- 载体传播疾病监测监测 载体传播疾病监测
背景情况:
- 由于宿主,载体和合适息地分布的重叠,造成了 arbovirus 传播的风险.
- 埃弗格莱德斯病毒 (EVEV) 是委内瑞拉马类脑炎病毒亚型,是佛罗里达州的特有病,由Culex cedecei蚊子在壁状动物之间传播.
研究的目的:
- 开发一个生态利基模型 (ENM),预测佛罗里达州适合EVEV传播的地区.
- 将载体-宿主相互作用与环境数据相结合,以加强传播风险评估.
主要方法:
- 生态利基建模使用从*Cx. *Cx. *Cx. *Cx. *Cx. *Cx. *Cx. *Cx. *Cx. *Cx. *Cx. *Cx. *Cx. *Cx. cedecei* 血液粉的分析.
- 纳入13个环境变量:生物气候数据 (温度,降水) 和土地覆盖数据 (NLCD 2019).
- 关键环境驱动因素的分析:最高气温,最低气温和最干燥的月份降水量;新兴的草原和木质湿地.
主要成果:
- 高适合 *Cx. 的高适合性. 在佛罗里达州西南部和沿着东北部海岸预测的cedecei*-动物相互作用.
- 在迈阿密-戴德和佛罗里达北部/泛汉德大部分地区确定了低适合性地区.
- 预测的分布与历史EVEV人类病例和野生动物抗体数据有很大重叠.
结论:
- 到目前为止,ENM提供了迄今为止最准确的EVEV传输的分布.
- 与单个物种模型相比,整合载体-宿主数据可以更好地推断潜在的传播区域.
- 这种方法适用于预测其他树木病毒和载体传播疾病的传播区域.
相关概念视频
01:23Investigation of Disease Outbreaks
Multistate foodborne outbreaks pose significant public health risks and require meticulous investigation to identify sources and implement control measures. The Centers for Disease Control and Prevention (CDC) utilizes a dynamic seven-step process for these investigations, integrating data from laboratories, interviews, and environmental assessments to protect public health.Outbreak Detection: The detection of multistate outbreaks typically begins with PulseNet, the CDC's national laboratory...
01:26Rocky Mountain Spotted Fever
Rocky Mountain Spotted Fever (RMSF) is a severe tick-borne illness caused by Rickettsia rickettsii, a Gram-negative, coccobacillary bacterium. This pathogen is an obligate intracellular parasite, requiring a host cell for replication. Transmission occurs through the bite of an infected tick. In the United States, the most important vectors are Dermacentor variabilis (American dog tick) and Dermacentor andersoni (Rocky Mountain wood tick), though other tick species may also serve as vectors.