Cross-sectional entomological data reveals an increased risk of arboviral transmission in a year of record-breaking heat in Southern Europe
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View abstract on PubMed
Summary
This summary is machine-generated.Record-breaking 2023 heat in Europe fueled a surge in dengue cases. Warmer temperatures increased the local Aedes albopictus mosquito population, raising arbovirus transmission risk in Rome.
Area Of Science
- Epidemiology
- Vector-borne diseases
- Climate change impact
Background
- Europe experienced a record number of locally acquired dengue virus cases in 2023, including a major outbreak in Rome.
- 2023 was the warmest year on record globally, with consistently higher temperatures from June to December.
Purpose Of The Study
- To analyze entomological data in Rome to understand the impact of 2023's high temperatures on Aedes albopictus.
- To assess changes in dengue and chikungunya virus transmission risk due to altered vector dynamics.
- To evaluate surveillance strategies for monitoring arboviral transmission risks.
Main Methods
- Analysis of entomological data from Rome in 2023, compared with 2012 data.
- Application of a dynamic temperature-based mathematical model to assess vector populations and transmission risk.
- Simulations of disease importation scenarios to test surveillance effectiveness.
Main Results
- A higher abundance and extended active season for Aedes albopictus were observed in 2023.
- The risk of local arbovirus transmission, including dengue and chikungunya, was significantly increased.
- Entomological and human surveillance are crucial for monitoring and managing transmission risks.
Conclusions
- Findings are concerning given predictions of more frequent extreme heat events in Europe.
- Increased temperatures enhance vector populations and arbovirus transmission risk.
- Proactive public health strategies are needed to address climate change-driven disease threats.
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