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Cell ; 186(26): 5690-5704.e20, 2023 12 21.
Artigo em Inglês | MEDLINE | ID: mdl-38101407

RESUMO

The maturation of genomic surveillance in the past decade has enabled tracking of the emergence and spread of epidemics at an unprecedented level. During the COVID-19 pandemic, for example, genomic data revealed that local epidemics varied considerably in the frequency of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) lineage importation and persistence, likely due to a combination of COVID-19 restrictions and changing connectivity. Here, we show that local COVID-19 epidemics are driven by regional transmission, including across international boundaries, but can become increasingly connected to distant locations following the relaxation of public health interventions. By integrating genomic, mobility, and epidemiological data, we find abundant transmission occurring between both adjacent and distant locations, supported by dynamic mobility patterns. We find that changing connectivity significantly influences local COVID-19 incidence. Our findings demonstrate a complex meaning of "local" when investigating connected epidemics and emphasize the importance of collaborative interventions for pandemic prevention and mitigation.


Assuntos
COVID-19 , Humanos , COVID-19/epidemiologia , COVID-19/transmissão , COVID-19/virologia , Genômica , Pandemias/prevenção & controle , Saúde Pública , SARS-CoV-2/genética , Controle de Infecções , Geografia
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