Department of Immunology and Microbiology, The Scripps Research Institute, La Jolla, CA, USA.
Biolab Diagnostic Laboratories, Amman, Jordan.
Nat Commun. 2022 Aug 15;13(1):4784. doi: 10.1038/s41467-022-32536-1.
Regional connectivity and land travel have been identified as important drivers of SARS-CoV-2 transmission. However, the generalizability of this finding is understudied outside of well-sampled, highly connected regions. In this study, we investigated the relative contributions of regional and intercontinental connectivity to the source-sink dynamics of SARS-CoV-2 for Jordan and the Middle East. By integrating genomic, epidemiological and travel data we show that the source of introductions into Jordan was dynamic across 2020, shifting from intercontinental seeding in the early pandemic to more regional seeding for the travel restrictions period. We show that land travel, particularly freight transport, drove introduction risk during the travel restrictions period. High regional connectivity and land travel also drove Jordan's export risk. Our findings emphasize regional connectedness and land travel as drivers of transmission in the Middle East.
区域连通性和陆运已被确定为 SARS-CoV-2 传播的重要驱动因素。然而,在抽样充分、连通性高的地区之外,这一发现的普遍性还研究不足。在这项研究中,我们调查了区域和洲际连通性对约旦和中东地区 SARS-CoV-2 的源汇动态的相对贡献。通过整合基因组、流行病学和旅行数据,我们表明 2020 年期间,约旦的传入源是动态的,从大流行早期的洲际播种转变为旅行限制期间更多的区域播种。我们表明,旅行限制期间,陆运,特别是货运,推动了传入风险。高区域连通性和陆运也推动了约旦的出口风险。我们的研究结果强调了区域连通性和陆运作为中东地区传播的驱动因素。
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