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April 3rd, 2025
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MIVEGEC, Univ. Montpellier, IRD, CNRS, Montpellier, France
ecology
biorxiv

Green cities and the risk for vector-borne disease transmission for humans and animals: a scoping review

Mercat, M.Open in Google Scholar•Bartholomee, C.Open in Google Scholar•Fournet, F.Open in Google Scholar•Alcover Amengual, M.Open in Google Scholar•Bourquia, M.Open in Google Scholar•Bouhsira, E.Open in Google Scholar•Cornel, A.Open in Google Scholar•Fernandez-Cassi, X.Open in Google Scholar•Fontenille, D.Open in Google Scholar•Ibanez-Justicia, A.Open in Google Scholaret al.

Background: Greening cities is a nature-based strategy to sustainable urban development that integrates natural elements like plants or water bodies, to mitigate climate change impacts and enhance human well-being. However, urban green infrastructures (UGIs) can influence the distribution of disease vectors, potentially affecting vector-borne diseases (VBDs). UGIs may provide new suitable environments for urban vectors, while also creating opportunities to mitigate VBD risks through predation, competition, and dilution effects. This article examined the relationships between UGIs, vectors, and associated pathogens, impacting both human and animal health, highlighting knowledge gaps and identifying research priorities to support VBD risk mitigation measures and to guide smart urban planning and design. Methods: A systematic literature search was conducted following PRISMA guidelines in three databases (Pubmed, Scopus, Web of Science). Selected articles involved (i) any aspect of a urban vector system, (ii) in UGIs, and (iii) statistically analyzing the effects of UGIs on VBD risk. Methods employed to characterize UGIs and VBDs were described and the identified impacts were summarized by vector group. Results: Among the 99 articles reviewed, most addressed mosquito-pathogen systems (67) and tick-pathogen systems (29), with studies often confined to a single city or several cities within the same country and focused on one vector group. Urban vegetation generally appeared to heighten the risk of tick-borne diseases. In contrast, the influence of UGIs on the risk of mosquito-borne diseases varied depending on the vector system and on the environmental and climatic context. The diversity of indicators used to assess UGIs and VBD risks may affect the observed impact on VBD risk. Conclusion: Given the increasing popularity of urban greening, it is crucial to investigate its potential implications for public health, and thereby urban planning decisions. However, the lack of standardized protocols complicates the accurate assessment of the effects of UGIs on the risk for VBD emergence and transmission and consequently, on potential mitigation measures.

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