West Nile virus ‘circulation’ in Vojvodina, Serbia: Mosquito, bird, horse and human surveillance

Petrić, Dušan; Petrović, Tamaš; Cvjetković, Ivana Hrnjaković; Zgomba, Marija; Milosevic, Vesna; Lazić, Gospava; Ćupina, Aleksandra Ignjatović; Lupulović, Diana; Lazić, Sava; Dondur, Dragan; Vaselek, Slavica; Živulj, Aleksandar; Kisin, B.; Molnar, Tibor; Janku, Djordje; Pudar, Dubravka; Radovanov, Jelena; Kavran, Mihaela; Kovačević, Gordana; Plavšić, Budimir; Galović, Aleksandra Jovanović; Vidić, Milan; Ilić, Svetlana; Petrić, Mina

doi:10.1016/j.mcp.2016.10.011

Cited by 28 publications

(30 citation statements)

References 18 publications

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“…We found that sites with higher T OA and T a were characterized with the higher frequency of WNV presence in mosquitoes. Clustering of cases with an incidence higher than one in six years coincided with an area of a significant grouping of mosquito, bird, horse, and human cases in 2014 and 2015 [9] (Fig 5). This is in concurrence with Tran et al [67] and Marcantonio et al [66], who found that average summer temperatures are positively correlated with WNV human incidence.…”

Section: Mosquito Vectorsmentioning

confidence: 90%

“…This is in concurrence with Tran et al [67] and Marcantonio et al [66], who found that average summer temperatures are positively correlated with WNV human incidence. It seems that temperature in semi-urban areas is an essential environmental factor influencing WNV circulation (landscape suitability for reservoir host and mosquito vector, host availability, and precipitation/ water availability are somewhat similar in investigated semi-urban areas of VPS), as it affects both mosquito vector abundance [9] and virus replication. Prediction of a two-fold increase in virus incidence for each 0.5˚C increase in T OA indicates but does not necessarily means, that the number of human cases could increase too.…”

Section: Mosquito Vectorsmentioning

confidence: 99%

“…Vector-borne diseases and melanoma are significant climate-driven threats for which risk sources can be clearly defined [6]. Moreover, both present progressively growing environmental threats to the animal as well as human health in the countries of the Pannonian Plane [7,8,9].…”

Section: Introductionmentioning

confidence: 99%

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Assessment of climate change impact on the malaria vector Anopheles hyrcanus, West Nile disease, and incidence of melanoma in the Vojvodina Province (Serbia) using data from a regional climate model

Mihailoviĉ

Petrić

Hrnjakovic-Cvjetkovic

et al. 2020

PLoS ONE

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Motivated by the One Health paradigm, we found the expected changes in temperature and UV radiation (UVR) to be a common trigger for enhancing the risk that viruses, vectors, and diseases pose to human and animal health. We compared data from the mosquito field collections and medical studies with regional climate model projections to examine the impact of climate change on the spreading of one malaria vector, the circulation of West Nile virus (WNV), and the incidence of melanoma. We analysed data obtained from ten selected years of standardised mosquito vector sampling with 219 unique location-year combinations, and 10 years of melanoma incidence. Trends in the observed data were compared to the climatic variables obtained by the coupled regional Eta Belgrade University and Princeton Ocean Model for the period 1961-2015 using the A1B scenario, and the expected changes up to 2030 were presented. Spreading and relative abundance of Anopheles hyrcanus was positively correlated with the trend of the mean annual temperature. We anticipated a nearly twofold increase in the number of invaded sites up to 2030. The frequency of WNV detections in Culex pipiens was significantly correlated to overwintering temperature averages and seasonal relative humidity at the sampling sites. Regression model projects a twofold increase in the incidence of WNV positive Cx. pipiens for a rise of 0.5˚C in overwintering T October-April temperatures. The projected increase of 56% in the number of days with T max � 30˚C (Hot Days-HD) and UVR doses (up to 1.2%) corresponds to an increasing trend in melanoma incidence. Simulations of the Pannonian countries climate anticipate warmer and drier conditions with possible dominance of temperature and number of HD

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Section: Mosquito Vectorsmentioning

confidence: 90%

Section: Mosquito Vectorsmentioning

confidence: 99%

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Assessment of climate change impact on the malaria vector Anopheles hyrcanus, West Nile disease, and incidence of melanoma in the Vojvodina Province (Serbia) using data from a regional climate model

Mihailoviĉ

Petrić

Hrnjakovic-Cvjetkovic

et al. 2020

PLoS ONE

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“…Higher risk when vector is abundant [13,81]; standardisation of sampling procedures (VectorNet guidelines) and conversion ratios for different adult traps are necessary (not done yet). Longer season increases chances of transmission when exotic pathogen is introduced.…”

Section: Pathogen Transmissionmentioning

confidence: 99%

“…By identifying thresholds are below levels associated with disease outbreaks, integrated vector management programs can institute proactive measures to maintain mosquito populations at levels below which amplification can occur. Requires pathogen surveillance in vectors [13,81]. 4 4 4 Related to vector abundance, with focus on pathogen-targeted host; positively correlated; Necessity to follow ethical rules.…”

Section: Reservoirmentioning

confidence: 99%

The importance of vector abundance and seasonality

William¹,

Alten

Balenghien

et al. 2018

EFSA Supporting Publications

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This joint ECDC‐EFSA report assesses whether vector count data (abundance) and the way these change throughout the year (seasonality) can provide useful information about vector‐borne diseases epidemiological processes of interest, and therefore, whether resources should be devoted to collecting such data. The document also summarises what measures of abundance and seasonality can be collected for each vector group (mosquitoes, sandflies, midges and ticks), lists the gaps in the sampling coverage and provides guidance for prioritising the acquisition of information. Knowing where vector species occur is crucial for the assessment of vector‐borne disease risk. Collecting abundance and seasonality data through field sampling is, however, more expensive and time consuming than collecting most other vector‐related data. The importance of abundance and seasonality data varies considerably according to the vector group and the epidemiological concept of interest. Epidemiological concepts of tick‐borne disease are less informed by abundance data than are those of the other vector groups, and presence/absence data of ticks may be sufficient in conjunction with other factors. Abundance data are generally considered relevant to pathogen establishment and transmission but less useful to inform early warning systems, estimates of the likelihood of pathogen persistence and –for sandflies, midges and ticks– to inform targeting of control measures. The conclusions on this report were based on VectorNet group discussions, field sampling studies, and review of both peer‐reviewed and grey literature. VectorNet is a European network for gathering and sharing data on the geographic distribution of arthropod vectors of disease agents affecting humans and livestock. Finally, the report notes that any form of extensive vector sampling depends not only on resources to fund the sampling programmes, but also on the availability of entomologists that have the skills to implement surveillance and monitoring programmes.

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Dynamics of West Nile Virus Lineage 2 Spread in the Balkans in the Context of Global Spatio‐Temporal Dispersal

Suka,

Cirkovic,

Siljic

et al. 2024

Journal of Medical Virology

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West Nile Virus (WNV) is considered one of the most widely distributed arboviruses worldwide. In 2018, Serbia was among the European countries reporting the highest number of WNV cases. This study aimed to characterize WNV strains circulating in Serbia, and to estimate the pathways and dynamics of WNV‐2 spread in the Balkans and globally through the phylogenetic approach. Fifty newly generated NS5 Serbian sequences were found to belong to WNV lineage 2. Phylodynamic analyses of the Balkan clade indicated the potential for an increase in genetic diversity and structure of virus populations. Presented phylogeographic analyses implied four instances of long‐distance WNV‐2 migration from Africa to Europe, during the 1940s to 1950s, while further dissemination of WNV‐2 originated in Hungary in mid‐1970s and subsequently spread to Austria and Serbia. Extensive dispersion took place during the 1990s–2000s, as the virus spread from Austria to central and western Europe, and from Hungary to the Balkans. Continuous phylogeography analysis of the Balkans WNV‐2 clade implied the central role of Serbia for WNV dissemination across the Balkan peninsula. Furthermore, previously undocumented instance of intercontinental migration of WNV‐2 from Europe to Asia was implied. In‐depth phylogenetic investigation into the global distribution of WNV‐2 may provide valuable insights into the prediction and prevention of potential epidemics.

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West Nile virus ‘circulation’ in Vojvodina, Serbia: Mosquito, bird, horse and human surveillance

Cited by 28 publications

References 18 publications

Assessment of climate change impact on the malaria vector Anopheles hyrcanus, West Nile disease, and incidence of melanoma in the Vojvodina Province (Serbia) using data from a regional climate model

Assessment of climate change impact on the malaria vector Anopheles hyrcanus, West Nile disease, and incidence of melanoma in the Vojvodina Province (Serbia) using data from a regional climate model

The importance of vector abundance and seasonality

Dynamics of West Nile Virus Lineage 2 Spread in the Balkans in the Context of Global Spatio‐Temporal Dispersal

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