Copy to clipboardCopy Brady, Oliver; Wilder-Smith, Annelies; (2021) What Is the Impact of Lockdowns on Dengue? Current Infectious Disease Reports, 23 (2). ISSN 1523-3847 DOI: https://doi.org/10.1007/s11908-020-00744-9
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Copy to clipboardCopyhttps://doi.org/10.1007/s11908-020-00744-9
© 2021, The Author(s), under exclusive licence to Springer Science+Business Media, LLC part of Springer Nature. Purpose of Review: Societal lockdowns in response to the COVID-19 pandemic have led to unprecedented disruption to daily life across the globe. A collateral effect of these lockdowns may be a change to transmission dynamics of a wide range of infectious diseases that are all highly dependent on rates of contact between humans. With timing, duration and intensity of lockdowns varying country-to-country, the wave of lockdowns in 2020 present a unique opportunity to observe how changes in human contact rates, disease control and surveillance affect dengue virus transmission in a global natural experiment. We explore the theoretical basis for the impact of lockdowns on dengue transmission and surveillance then summarise the current evidence base from country reports. Recent Findings: We find considerable variation in the intensity of dengue epidemics reported so far in 2020 with some countries experiencing historic low levels of transmission while others are seeing record outbreaks. Despite many studies warning of the risks of lockdown for dengue transmission, few empirically quantify the impact and issues such as the specific timing of the lockdowns and multi-annual cycles of dengue are not accounted for. In the few studies where such issues have been accounted for, the impact of lockdowns on dengue appears to be limited. Summary: Studying the impact of lockdowns on dengue transmission is important both in how we deal with the immediate COVID-19 and dengue crisis, but also over the coming years in the post-pandemic recovery period. It is clear lockdowns have had very different impacts in different settings. Further analyses might ultimately allow this unique natural experiment to provide insights into how to better control dengue that will ultimately lead to better long-term control.
Embargo Date: 21 January 2022
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