The role of Culex pipiens mosquitoes in transmission of West Nile virus in Europe

Vogels, Chantal B.F.

doi:10.18174/418217

DOI: 10.18174/418217

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The role of Culex pipiens mosquitoes in transmission of West Nile virus in Europe

Chantal B.F. Vogels

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Cited by 2 publications

References 235 publications

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Distribution of Culex pipiens life stages across urban green and grey spaces in Leiden, The Netherlands

Krol,

Langezaal,

Budidarma

et al. 2024

Parasites Vectors

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Background There is an urgent need for cities to become more climate resilient; one of the key strategies is to include more green spaces in the urban environment. Currently, there is a worry that increasing green spaces might increase mosquito nuisance. As such, this study explores a comprehensive understanding of how mosquitoes utilise contrasting grey and green habitats at different life stages and which environmental factors could drive these distributions. Methods We used a setup of six paired locations, park (green) vs. residential (grey) areas in a single model city (Leiden, The Netherlands), where we sampled the abundances of different mosquito life stages (eggs, larvae, adults) and the local microclimatic conditions. In this study, we focused on Culex pipiens s.l., which is the most common and abundant mosquito species in The Netherlands. Results Our results show that while Cx. pipiens ovipositioning rates (number of egg rafts) and larval life stages were far more abundant in residential areas, adults were more abundant in parks. These results coincide with differences in the number of suitable larval habitats (higher in residential areas) and differences in microclimatic conditions (more amenable in parks). Conclusions These findings suggest that Cx. pipiens dispersal may be considerably more important than previously thought, where adult Cx. pipiens seek out the most suitable habitat for survival and breeding success. Our findings can inform more targeted and efficient strategies to mitigate and reduce mosquito nuisance while urban green spaces are increased, which make cities more climate resilient. Graphical Abstract

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Distribution of Culex pipiens life stages across urban green and grey spaces in Leiden, The Netherlands

Krol,

Langezaal,

Budidarma

et al. 2024

Parasites Vectors

View full text Add to dashboard Cite

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Establishing the Evolution of West Nile Virus Outbreaks in Romania by Using Climatic Scenarios

MIRON,

IVANESCU,

MINDRU

et al. 2023

JALSE

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West Nile virus (WNV) is a re-emerging zoonotic pathogen that represents a threat to both animal and human health. It is difficult to estimate the impact of WNV in the future, although many of the climatic factors influencing its spread have been identified. In this study, we used bioclimatic indices to estimate those periods that favour the growth of vector mosquito populations and the incubation periods for the virus. To this end, we studied the climatic changes in the Romanian regions where cases of WN infection have been reported. Simulations were carried out for 2100 based on long-term scenarios. Identifying the bioclimatic conditions which can cause WNV outbreaks in Romania is necessary to anticipate and thereby prevent future epidemics. However, no extraordinary weather events were registered in the years with WNV outbreaks which could explain such a high number of cases. Thus, in the High Scenario (which will occur if actions to control (GHG) gas emissions are not taken or implemented effectively), the hatching period is extended until November, with the risk that adult mosquitoes are active throughout the year, ensuring a high survival rate of the virus within mosquitoes. In addition, in the High Scenario, the transmission period of the virus is extended from April to October, which underlines the need to establish monitoring and control programmes for both mosquito populations and the spread of the virus among the animal and human populations.

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The role of Culex pipiens mosquitoes in transmission of West Nile virus in Europe

Cited by 2 publications

References 235 publications

Distribution of Culex pipiens life stages across urban green and grey spaces in Leiden, The Netherlands

Distribution of Culex pipiens life stages across urban green and grey spaces in Leiden, The Netherlands

Establishing the Evolution of West Nile Virus Outbreaks in Romania by Using Climatic Scenarios

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