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COVID-19 prevention measures reduce dengue spread in Yunnan Province, China, but do not reduce established outbreak.


ABSTRACT: ABSTRACTThe COVID-19 pandemic and measures against it provided a unique opportunity to understand the transmission of other infectious diseases and to evaluate the efficacy of COVID-19 prevention measures on them. Here we show a dengue epidemic in Yunnan, China, during the pandemic of COVID-19 was dramatically reduced compared to non-pandemic years and, importantly, spread was confined to only one city, Ruili. Three key features characterized this dengue outbreak: (i) the urban-to-suburban spread was efficiently blocked; (ii) the scale of epidemic in urban region was less affected; (iii) co-circulation of multiple strains was attenuated. These results suggested that countermeasures taken during COVID-19 pandemic are efficient to prevent dengue transmission between cities and from urban to suburban, as well to reduce the co-circulation of multiple serotypes or genotypes. Nevertheless, as revealed by the spatial analysis, once the dengue outbreak was established, its distribution was very stable and resistant to measures against COVID-19, implying the possibility to develop a precise prediction method.

SUBMITTER: Sheng ZY 

PROVIDER: S-EPMC8745368 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature

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COVID-19 prevention measures reduce dengue spread in Yunnan Province, China, but do not reduce established outbreak.

Sheng Z Y ZY   Li M M   Yang R R   Liu Y H YH   Yin X X XX   Mao J R JR   Brown Heidi E HE   An J J   Zhou H N HN   Wang P G PG  

Emerging microbes & infections 20221201 1


<b>ABSTRACT</b>The COVID-19 pandemic and measures against it provided a unique opportunity to understand the transmission of other infectious diseases and to evaluate the efficacy of COVID-19 prevention measures on them. Here we show a dengue epidemic in Yunnan, China, during the pandemic of COVID-19 was dramatically reduced compared to non-pandemic years and, importantly, spread was confined to only one city, Ruili. Three key features characterized this dengue outbreak: (i) the urban-to-suburba  ...[more]

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