ArticlePLoS neglected tropical diseases2020
Heatwaves and dengue outbreaks in Hanoi, Vietnam: New evidence on early warning.
Article in PLoS neglected tropical diseases, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 2 of them syntheses that pooled it.
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Who cites it
21 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Battling dengue in a warming world: How climate and urbanization shape transmission in low- and middle-income countries (a rapid review).PLoS neglected tropical diseases · 2026Pooled it
- Effects of high temperatures and heatwaves on dengue fever: a systematic review and meta-analysis.EBioMedicine · 2023Pooled it
- Attributing climate-related health burdens in Southeast Asia: a scoping review.The Lancet regional health. Western Pacific · 2026Review
- Vietnamese Odonata: bridging global biodiversity, ecological, and conservation gaps in a changing world.npj biodiversity · 2026Review
- Dengue incidence and its relationship with El Niño oceanic index, as a sensitive variable to anticipate outbreaks in the Colombian Caribbean regionBiomedica : revista del Instituto Nacional de Salud · 2025Article
- Lethal Heat and Humidity Events.Annual review of environment and resources · 2025Article
- Extreme weather events and dengue in Southeast Asia: A regionally-representative analysis of 291 locations from 1998 to 2021.PLoS neglected tropical diseases · 2025Article
- The impact of hot nights on dengue incidence: a nationwide case crossover study in Brazil.Infectious diseases of poverty · 2025Article
- A State-of-the-Science Review of Long-Term Predictions of Climate Change Impacts on Dengue Transmission Risk.Environmental health perspectives · 2025Review
- Influence of climate and heatwaves on dengue transmission in Sao Paulo and Natal, Brazil.PloS one · 2025Article
- Twenty-first-century demographic and social inequalities of heat-related deaths in Brazilian urban areas.PloS one · 2024Article
- Sequential label shift detection in classification data: An application to dengue fever.PloS one · 2024Article
- Association between environmental factors and dengue incidence in Lao People's Democratic Republic: a nationwide time-series study.BMC public health · 2023Article
- Climate change, environmental extremes, and human health in Australia: challenges, adaptation strategies, and policy gaps.The Lancet regional health. Western Pacific · 2023Review
- Climate Crises and Developing Vector-Borne Diseases: A Narrative Review.Iranian journal of public health · 2022Review
- Deep learning models for forecasting dengue fever based on climate data in Vietnam.PLoS neglected tropical diseases · 2022Article
- The 2017 Dengue virus 1 outbreak in northern Vietnam was caused by a locally circulating virus group.Tropical medicine and health · 2022Article
- Spatio-temporal dynamics of three diseases caused byCommunications medicine · 2022Article
- Dengue outbreaks in the COVID-19 era: Alarm raised for Asia.PLoS neglected tropical diseases · 2021Article
- Extreme weather events and dengue outbreaks in Guangzhou, China: a time-series quasi-binomial distributed lag non-linear model.International journal of biometeorology · 2021Article
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Authors and funding
9 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundMany studies have shown associations between rising temperatures, El Niño events and dengue incidence, but the effect of sustained periods of extreme high temperatures (i.e., heatwaves) on dengue outbreaks has not yet been investigated. This study aimed to compare the short-term temperature-dengue associations during different dengue outbreak periods, estimate the dengue cases attributable to temperature, and ascertain if there was an association between heatwaves and dengue outbreaks in Hanoi, Vietnam. METHODOLOGY/PRINCIPAL
findingsDengue outbreaks were assigned to one of three categories (small, medium and large) based on the 50th, 75th, and 90th percentiles of distribution of weekly dengue cases during 2008-2016. Using a generalised linear regression model with a negative binomial link that controlled for temporal trends, temperature variation, rainfall and population size over time, we examined and compared associations between weekly average temperature and weekly dengue incidence for different outbreak categories. The same model using weeks with or without heatwaves as binary variables was applied to examine the potential effects of extreme heatwaves, defined as seven or more days with temperatures above the 95th percentile of daily temperature distribution during the study period. This study included 55,801 dengue cases, with an average of 119 (range: 0 to 1454) cases per week. The exposure-response relationship between temperature and dengue risk was non-linear and differed with dengue category. After considering the delayed effects of temperature (one week lag), we estimated that 4.6%, 11.6%, and 21.9% of incident cases during small, medium, and large outbreaks were attributable to temperature. We found evidence of an association between heatwaves and dengue outbreaks, with longer delayed effects on large outbreaks (around 14 weeks later) than small and medium outbreaks (4 to 9 weeks later). Compared with non-heatwave years, dengue outbreaks (i.e., small, moderate and large outbreaks combined) in heatwave years had higher weekly number of dengue cases (p<0.05). Findings were robust under different sensitivity analyses.
conclusionsThe short-term association between temperature and dengue risk varied by the level of outbreaks and temperature seems more likely affect large outbreaks. Moreover, heatwaves may delay the timing and increase the magnitude of dengue outbreaks.
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