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Cawthon SMO, Dimise MM, Frazier R. First Record of Aedes Japonicus in St. Tammany Parish, Louisiana. JOURNAL OF THE AMERICAN MOSQUITO CONTROL ASSOCIATION 2023; 39:278-280. [PMID: 38108424 DOI: 10.2987/23-7142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
Information of species presence and abundance is useful for taking a targeted approach to controlling populations of medically important and nuisance mosquito species. In April 2023, staff at St. Tammany Parish Mosquito Abatement District (STPMAD), in Slidell, Louisiana, identified Aedes japonicus (Theobald, 1901) mosquitoes from a larval sample brought in from the field for identification. Although invasive Aedes species like Aedes albopictus are commonly found in Louisiana, this is the first record of Ae. japonicus in St. Tammany Parish.
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Lühken R, Brattig N, Becker N. Introduction of invasive mosquito species into Europe and prospects for arbovirus transmission and vector control in an era of globalization. Infect Dis Poverty 2023; 12:109. [PMID: 38037192 PMCID: PMC10687857 DOI: 10.1186/s40249-023-01167-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 11/24/2023] [Indexed: 12/02/2023] Open
Abstract
BACKGROUND Mosquito research in Europe has a long history, primarily focused on malaria vectors. In recent years, invasive mosquito species like the Asian tiger mosquito (Aedes albopictus) and the spread of arboviruses like dengue virus, chikungunya virus or bluetongue virus have led to an intensification of research and monitoring in Europe. The risk of further dissemination of exotic species and mosquito-borne pathogens is expected to increase with ongoing globalization, human mobility, transport geography, and climate warming. Researchers have conducted various studies to understand the ecology, biology, and effective control strategies of mosquitoes and associated pathogens. MAIN BODY Three invasive mosquito species are established in Europe: Asian tiger mosquito (Aedes albopictus), Japanese bush mosquito (Ae. japonicus), and Korean bush mosquito (Aedes koreicus). Ae. albopictus is the most invasive species and has been established in Europe since 1990. Over the past two decades, there has been an increasing number of outbreaks of infections by mosquito-borne viruses in particular chikungunya virus, dengue virus or Zika virus in Europe primary driven by Ae. albopictus. At the same time, climate change with rising temperatures results in increasing threat of invasive mosquito-borne viruses, in particular Usutu virus and West Nile virus transmitted by native Culex mosquito species. Effective mosquito control programs require a high level of community participation, going along with comprehensive information campaigns, to ensure source reduction and successful control. Control strategies for container breeding mosquitoes like Ae. albopictus or Culex species involve community participation, door-to-door control activities in private areas. Further measures can involve integration of sterile insect techniques, applying indigenous copepods, Wolbachia sp. bacteria, or genetically modified mosquitoes, which is very unlike to be practiced as standard method in the near future. CONCLUSIONS Climate change and globalization resulting in the increased establishment of invasive mosquitoes in particular of the Asian tiger mosquito Ae. albopictus in Europe within the last 30 years and increasing outbreaks of infections by mosquito-borne viruses warrants intensification of research and monitoring. Further, effective future mosquito control programs require increase in intense community and private participation, applying physical, chemical, biological, and genetical control activities.
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Affiliation(s)
- Renke Lühken
- Bernhard Nocht Institute for Tropical Medicine, 20359, Hamburg, Germany.
| | - Norbert Brattig
- Bernhard Nocht Institute for Tropical Medicine, 20359, Hamburg, Germany
| | - Norbert Becker
- Institute for Dipterology, 67346, Speyer, Germany
- Institute for Organismal Studies (COS), University of Heidelberg, 69117, Heidelberg, Germany
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3
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Sauer FG, Pfitzner WP, Jöst H, Rauhöft L, Kliemke K, Lange U, Heitmann A, Jansen S, Lühken R. Using geometric wing morphometrics to distinguish Aedes japonicus japonicus and Aedes koreicus. Parasit Vectors 2023; 16:418. [PMID: 37968721 PMCID: PMC10648383 DOI: 10.1186/s13071-023-06038-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Accepted: 10/30/2023] [Indexed: 11/17/2023] Open
Abstract
BACKGROUND Aedes japonicus japonicus (Theobald, 1901) and Aedes koreicus (Edwards, 1917) have rapidly spread in Europe over the last decades. Both species are very closely related and occur in sympatry. Females and males are difficult to distinguish. However, the accurate species discrimination is important as both species may differ in their vectorial capacity and spreading behaviour. In this study, we assessed the potential of geometric wing morphometrics as alternative to distinguish the two species. METHODS A total of 147 Ae. j. japonicus specimens (77 females and 70 males) and 124 Ae. koreicus specimens (67 females and 57 males) were collected in southwest Germany. The left wing of each specimen was removed, mounted and photographed. The coordinates of 18 landmarks on the vein crosses were digitalised by a single observer. The resulting two-dimensional dataset was used to analyse the differences in the wing size (i.e. centroid size) and wing shape between Ae. j. japonicus and Ae. koreicus using geometric morphometrics. To analyse the reproducibility of the analysis, the landmark collection was repeated for 20 specimens per sex and species by two additional observers. RESULTS The wing size in female Ae. koreicus was significantly greater than in Ae. j. japonicus but did not differ significantly for males. However, the strong overlap in wing size also for the females would not allow to discriminate the two species. In contrast, the wing shape clustering was species specific and a leave-one-out validation resulted in a reclassification accuracy of 96.5% for the females and 91.3% for the males. The data collected by different observers resulted in a similar accuracy, indicating a low observer bias for the landmark collection. CONCLUSIONS Geometric wing morphometrics provide a reliable and robust tool to distinguish female and male specimens of Ae. j. japonicus and Ae. koreicus.
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Affiliation(s)
- Felix G Sauer
- Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany.
| | - Wolf Peter Pfitzner
- Kommunale Aktionsgemeinschaft Zur Bekämpfung Der Schnakenplage e. V. (KABS), Georg-Peter-Süß-Str. 3, 67346, Speyer, Germany
| | - Hanna Jöst
- Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany
| | - Leif Rauhöft
- Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany
| | | | - Unchana Lange
- Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany
| | - Anna Heitmann
- Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany
| | - Stephanie Jansen
- Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany
- Faculty of Mathematics, Informatics and Natural Sciences, University of Hamburg, Hamburg, Germany
| | - Renke Lühken
- Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany
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Liu Q, Xie JW, Wang M, Du YT, Yin ZG, Zhou NX, Zhao TY, Huang EJ, Zhang HD. Potential Global Distribution of the Invasive Mosquito Aedes koreicus under a Changing Climate. Trop Med Infect Dis 2023; 8:471. [PMID: 37888599 PMCID: PMC10610658 DOI: 10.3390/tropicalmed8100471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 10/02/2023] [Accepted: 10/08/2023] [Indexed: 10/28/2023] Open
Abstract
Invasive alien species are a growing threat to natural systems, the economy, and human health. Active surveillance and responses that readily suppress newly established colonies are effective actions to mitigate the noxious consequences of biological invasions. Aedes (Hulecoeteomyia) koreicus (Edwards), a mosquito species native to East Asia, has spread to parts of Europe and Central Asia since 2008. In the last decade, Ae. koreicus has been shown to be a competent vector for chikungunya virus and Dirofilaria immitis. However, information about the current and potential distribution of Ae. koreicus is limited. Therefore, to understand the changes in their global distribution and to contribute to the monitoring and control of Ae. koreicus, in this study, the MaxEnt model was used to predict and analyze the current suitable distribution area of Ae. koreicus in the world to provide effective information.
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Affiliation(s)
- Qing Liu
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China; (Q.L.); (J.-W.X.); (M.W.); (Y.-T.D.); (Z.-G.Y.); (N.-X.Z.); (T.-Y.Z.)
| | - Jing-Wen Xie
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China; (Q.L.); (J.-W.X.); (M.W.); (Y.-T.D.); (Z.-G.Y.); (N.-X.Z.); (T.-Y.Z.)
- The School of Public Health, Fujian Medical University, Fuzhou 350000, China
| | - Ming Wang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China; (Q.L.); (J.-W.X.); (M.W.); (Y.-T.D.); (Z.-G.Y.); (N.-X.Z.); (T.-Y.Z.)
| | - Yu-Tong Du
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China; (Q.L.); (J.-W.X.); (M.W.); (Y.-T.D.); (Z.-G.Y.); (N.-X.Z.); (T.-Y.Z.)
| | - Zi-Ge Yin
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China; (Q.L.); (J.-W.X.); (M.W.); (Y.-T.D.); (Z.-G.Y.); (N.-X.Z.); (T.-Y.Z.)
| | - Ning-Xin Zhou
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China; (Q.L.); (J.-W.X.); (M.W.); (Y.-T.D.); (Z.-G.Y.); (N.-X.Z.); (T.-Y.Z.)
| | - Tong-Yan Zhao
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China; (Q.L.); (J.-W.X.); (M.W.); (Y.-T.D.); (Z.-G.Y.); (N.-X.Z.); (T.-Y.Z.)
| | - En-Jiong Huang
- The School of Public Health, Fujian Medical University, Fuzhou 350000, China
- Fuzhou International Travel Health Care Center, Fuzhou 350001, China
| | - Heng-Duan Zhang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China; (Q.L.); (J.-W.X.); (M.W.); (Y.-T.D.); (Z.-G.Y.); (N.-X.Z.); (T.-Y.Z.)
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Delrieu M, Martinet JP, O’Connor O, Viennet E, Menkes C, Burtet-Sarramegna V, Frentiu FD, Dupont-Rouzeyrol M. Temperature and transmission of chikungunya, dengue, and Zika viruses: A systematic review of experimental studies on Aedes aegypti and Aedes albopictus. CURRENT RESEARCH IN PARASITOLOGY & VECTOR-BORNE DISEASES 2023; 4:100139. [PMID: 37719233 PMCID: PMC10500480 DOI: 10.1016/j.crpvbd.2023.100139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 08/11/2023] [Accepted: 08/16/2023] [Indexed: 09/19/2023]
Abstract
Mosquito-borne viruses are leading causes of morbidity and mortality in many parts of the world. In recent years, modelling studies have shown that climate change strongly influences vector-borne disease transmission, particularly rising temperatures. As a result, the risk of epidemics has increased, posing a significant public health risk. This review aims to summarize all published laboratory experimental studies carried out over the years to determine the impact of temperature on the transmission of arboviruses by the mosquito vector. Given their high public health importance, we focus on dengue, chikungunya, and Zika viruses, which are transmitted by the mosquitoes Aedes aegypti and Aedes albopictus. Following PRISMA guidelines, 34 papers were included in this systematic review. Most studies found that increasing temperatures result in higher rates of infection, dissemination, and transmission of these viruses in mosquitoes, although several studies had differing findings. Overall, the studies reviewed here suggest that rising temperatures due to climate change would alter the vector competence of mosquitoes to increase epidemic risk, but that some critical research gaps remain.
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Affiliation(s)
- Méryl Delrieu
- Institut Pasteur de Nouvelle-Calédonie, Institut Pasteur International
Network, URE Dengue et Arborises, Nouméa 98845, New Caledonia
| | - Jean-Philippe Martinet
- Institut Pasteur de Nouvelle-Calédonie, Institut Pasteur International
Network, URE Dengue et Arborises, Nouméa 98845, New Caledonia
| | - Olivia O’Connor
- Institut Pasteur de Nouvelle-Calédonie, Institut Pasteur International
Network, URE Dengue et Arborises, Nouméa 98845, New Caledonia
| | - Elvina Viennet
- School of Biomedical Sciences, Queensland University of Technology,
Kelvin Grove, QLD 4059, Australia
| | - Christophe Menkes
- ENTROPIE, IRD, University of New Caledonia, University of La Réunion,
CNRS, Ifremer, Nouméa, New Caledonia
| | - Valérie Burtet-Sarramegna
- Institute of Exact and Applied Sciences (ISEA), University of New
Caledonia, 45 Avenue James Cook - BP R4 98 851 - Nouméa Cedex, New
Caledonia
| | - Francesca D. Frentiu
- School of Biomedical Sciences, And Centre for Immunology and Infection
Control, Queensland University of Technology, Brisbane, QLD 4000,
Australia
| | - Myrielle Dupont-Rouzeyrol
- Institut Pasteur de Nouvelle-Calédonie, Institut Pasteur International
Network, URE Dengue et Arborises, Nouméa 98845, New Caledonia
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Bisia M, Montenegro-Quinoñez CA, Dambach P, Deckert A, Horstick O, Kolimenakis A, Louis VR, Manrique-Saide P, Michaelakis A, Runge-Ranzinger S, Morrison AC. Secondary vectors of Zika Virus, a systematic review of laboratory vector competence studies. PLoS Negl Trop Dis 2023; 17:e0011591. [PMID: 37651473 PMCID: PMC10499269 DOI: 10.1371/journal.pntd.0011591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 09/13/2023] [Accepted: 08/14/2023] [Indexed: 09/02/2023] Open
Abstract
BACKGROUND After the unprecedented Zika virus (ZIKV) outbreak in the western hemisphere from 2015-2018, Aedes aegypti and Ae. albopictus are now well established primary and secondary ZIKV vectors, respectively. Consensus about identification and importance of other secondary ZIKV vectors remain. This systematic review aims to provide a list of vector species capable of transmitting ZIKV by reviewing evidence from laboratory vector competence (VC) studies and to identify key knowledge gaps and issues within the ZIKV VC literature. METHODS A search was performed until 15th March 2022 on the Cochrane Library, Lilacs, PubMed, Web of Science, WHOLIS and Google Scholar. The search strings included three general categories: 1) "ZIKA"; 2) "vector"; 3) "competence", "transmission", "isolation", or "feeding behavior" and their combinations. Inclusion and exclusion criteria has been predefined and quality of included articles was assessed by STROBE and STROME-ID criteria. FINDINGS From 8,986 articles retrieved, 2,349 non-duplicates were screened by title and abstracts,103 evaluated using the full text, and 45 included in this analysis. Main findings are 1) secondary vectors of interest include Ae. japonicus, Ae. detritus, and Ae. vexans at higher temperature 2) Culex quinquefasciatus was not found to be a competent vector of ZIKV, 3) considerable heterogeneity in VC, depending on the local mosquito strain and virus used in testing was observed. Critical issues or gaps identified included 1) inconsistent definitions of VC parameters across the literature; 2) equivalency of using different mosquito body parts to evaluate VC parameters for infection (mosquito bodies versus midguts), dissemination (heads, legs or wings versus salivary glands), and transmission (detection or virus amplification in saliva, FTA cards, transmission to neonatal mice); 3) articles that fail to use infectious virus assays to confirm the presence of live virus; 4) need for more studies using murine models with immunocompromised mice to infect mosquitoes. CONCLUSION Recent, large collaborative multi-country projects to conduct large scale evaluations of specific mosquito species represent the most appropriate approach to establish VC of mosquito species.
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Affiliation(s)
- Marina Bisia
- Laboratory of Insects and Parasites of Medical Importance, Scientific Directorate of Entomology and Agricultural Zoology, Benaki Phytopathological Institute, Athens, Greece
| | - Carlos Alberto Montenegro-Quinoñez
- Heidelberg Institute of Global Health (HIGH), Faculty of Medicine and University Hospital, Heidelberg University, Heidelberg, Germany
- Instituto de Investigaciones, Centro Universitario de Zacapa, Universidad de San Carlos de Guatemala, Zacapa, Guatemala
| | - Peter Dambach
- Heidelberg Institute of Global Health (HIGH), Faculty of Medicine and University Hospital, Heidelberg University, Heidelberg, Germany
| | - Andreas Deckert
- Heidelberg Institute of Global Health (HIGH), Faculty of Medicine and University Hospital, Heidelberg University, Heidelberg, Germany
| | - Olaf Horstick
- Heidelberg Institute of Global Health (HIGH), Faculty of Medicine and University Hospital, Heidelberg University, Heidelberg, Germany
| | - Antonios Kolimenakis
- Laboratory of Insects and Parasites of Medical Importance, Scientific Directorate of Entomology and Agricultural Zoology, Benaki Phytopathological Institute, Athens, Greece
| | - Valérie R. Louis
- Heidelberg Institute of Global Health (HIGH), Faculty of Medicine and University Hospital, Heidelberg University, Heidelberg, Germany
| | - Pablo Manrique-Saide
- Unidad Colaborativa para Bioensayos Entomológicos (UCBE), Universidad Autónoma de Yucatán, Mérida, México
| | - Antonios Michaelakis
- Laboratory of Insects and Parasites of Medical Importance, Scientific Directorate of Entomology and Agricultural Zoology, Benaki Phytopathological Institute, Athens, Greece
| | - Silvia Runge-Ranzinger
- Heidelberg Institute of Global Health (HIGH), Faculty of Medicine and University Hospital, Heidelberg University, Heidelberg, Germany
| | - Amy C. Morrison
- Department of Pathology, Microbiology, and Immunology, School of Veterinary Medicine, University of California Davis, Davis, California, United States of America
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7
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Abbo SR, de Almeida JPP, Olmo RP, Balvers C, Griep JS, Linthout C, Koenraadt CJM, Silva BM, Fros JJ, Aguiar ERGR, Marois E, Pijlman GP, Marques JT. The virome of the invasive Asian bush mosquito Aedes japonicus in Europe. Virus Evol 2023; 9:vead041. [PMID: 37636319 PMCID: PMC10460169 DOI: 10.1093/ve/vead041] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 06/05/2023] [Accepted: 06/30/2023] [Indexed: 08/29/2023] Open
Abstract
The Asian bush mosquito Aedes japonicus is rapidly invading North America and Europe. Due to its potential to transmit multiple pathogenic arthropod-borne (arbo)viruses including Zika virus, West Nile virus, and chikungunya virus, it is important to understand the biology of this vector mosquito in more detail. In addition to arboviruses, mosquitoes can also carry insect-specific viruses that are receiving increasing attention due to their potential effects on host physiology and arbovirus transmission. In this study, we characterized the collection of viruses, referred to as the virome, circulating in Ae. japonicus populations in the Netherlands and France. Applying a small RNA-based metagenomic approach to Ae. japonicus, we uncovered a distinct group of viruses present in samples from both the Netherlands and France. These included one known virus, Ae. japonicus narnavirus 1 (AejapNV1), and three new virus species that we named Ae. japonicus totivirus 1 (AejapTV1), Ae. japonicus anphevirus 1 (AejapAV1) and Ae. japonicus bunyavirus 1 (AejapBV1). We also discovered sequences that were presumably derived from two additional novel viruses: Ae. japonicus bunyavirus 2 (AejapBV2) and Ae. japonicus rhabdovirus 1 (AejapRV1). All six viruses induced strong RNA interference responses, including the production of twenty-one nucleotide-sized small interfering RNAs, a signature of active replication in the host. Notably, AejapBV1 and AejapBV2 belong to different viral families; however, no RNA-dependent RNA polymerase sequence has been found for AejapBV2. Intriguingly, our small RNA-based approach identified an ∼1-kb long ambigrammatic RNA that is associated with AejapNV1 as a secondary segment but showed no similarity to any sequence in public databases. We confirmed the presence of AejapNV1 primary and secondary segments, AejapTV1, AejapAV1, and AejapBV1 by reverse transcriptase polymerase chain reaction (PCR) in wild-caught Ae. japonicus mosquitoes. AejapNV1 and AejapTV1 were found at high prevalence (87-100 per cent) in adult females, adult males, and larvae. Using a small RNA-based, sequence-independent metagenomic strategy, we uncovered a conserved and prevalent virome among Ae. japonicus mosquito populations. The high prevalence of AejapNV1 and AejapTV1 across all tested mosquito life stages suggests that these viruses are intimately associated with Ae. japonicus.
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Affiliation(s)
- Sandra R Abbo
- Laboratory of Virology, Wageningen University & Research, Droevendaalsesteeg 4, Wageningen 6708 PB, The Netherlands
| | - João P P de Almeida
- Department of Biochemistry and Immunology, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Antonio Carlos 6627, Belo Horizonte 31270-901, Brazil
| | - Roenick P Olmo
- Insect Models of Innate Immunity, Université de Strasbourg, CNRS UPR9022, INSERM U1257, 2 Allee Konrad Roentgen, Strasbourg 67000, France
| | - Carlijn Balvers
- Laboratory of Virology, Wageningen University & Research, Droevendaalsesteeg 4, Wageningen 6708 PB, The Netherlands
- Laboratory of Entomology, Wageningen University & Research, Droevendaalsesteeg 4, Wageningen 6708 PB, The Netherlands
| | - Jet S Griep
- Laboratory of Virology, Wageningen University & Research, Droevendaalsesteeg 4, Wageningen 6708 PB, The Netherlands
- Laboratory of Entomology, Wageningen University & Research, Droevendaalsesteeg 4, Wageningen 6708 PB, The Netherlands
| | - Charlotte Linthout
- Laboratory of Entomology, Wageningen University & Research, Droevendaalsesteeg 4, Wageningen 6708 PB, The Netherlands
| | - Constantianus J M Koenraadt
- Laboratory of Entomology, Wageningen University & Research, Droevendaalsesteeg 4, Wageningen 6708 PB, The Netherlands
| | - Bruno M Silva
- Department of Biochemistry and Immunology, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Antonio Carlos 6627, Belo Horizonte 31270-901, Brazil
| | - Jelke J Fros
- Laboratory of Virology, Wageningen University & Research, Droevendaalsesteeg 4, Wageningen 6708 PB, The Netherlands
| | - Eric R G R Aguiar
- Department of Biochemistry and Immunology, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Antonio Carlos 6627, Belo Horizonte 31270-901, Brazil
- Department of Biological Science, Center of Biotechnology and Genetics, State University of Santa Cruz, Rod. Jorge Amado Km 16, Ilhéus 45662-900, Brazil
| | - Eric Marois
- Insect Models of Innate Immunity, Université de Strasbourg, CNRS UPR9022, INSERM U1257, 2 Allee Konrad Roentgen, Strasbourg 67000, France
| | - Gorben P Pijlman
- Laboratory of Virology, Wageningen University & Research, Droevendaalsesteeg 4, Wageningen 6708 PB, The Netherlands
| | - João T Marques
- Department of Biochemistry and Immunology, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Antonio Carlos 6627, Belo Horizonte 31270-901, Brazil
- Insect Models of Innate Immunity, Université de Strasbourg, CNRS UPR9022, INSERM U1257, 2 Allee Konrad Roentgen, Strasbourg 67000, France
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8
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Nanfack-Minkeu F, Delong A, Luri M, Poelstra JW. Invasive Aedes japonicus Mosquitoes Dominate the Aedes Fauna Collected with Gravid Traps in Wooster, Northeastern Ohio, USA. INSECTS 2023; 14:56. [PMID: 36661984 PMCID: PMC9861081 DOI: 10.3390/insects14010056] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 12/18/2022] [Accepted: 01/03/2023] [Indexed: 06/17/2023]
Abstract
Aedes japonicus (Diptera: Culicidae), or the Asian rock pool mosquito, is an invasive mosquito in Europe and America. It was first detected outside of Asia in 1990 in Oceania. It has since expanded to North America and Europe in 1998 and 2000, respectively. Even though it is classified as a secondary vector of pathogens, it is competent to several arboviruses and filarial worms, and it is contributing to the transmission of La Crosse virus (LACV) and West Nile virus (WNV). In this study, CDC light, BG-sentinel, and gravid traps were used to collect mosquitoes between June and October 2021, in Wooster, Northeastern Ohio, USA. Morphological identification or/and Sanger sequencing were performed to identify the collected mosquitoes. Our results revealed that (adult) Ae. japonicus mosquitoes were the most abundant mosquito species collected with gravid traps in Wooster in 2021, confirming its establishment in Ohio. Molecular analyses of Ae. japonicus showed 100% nucleotide similarity with Ae. japonicus collected in Iowa (USA) and Canada, suggesting multiple introductions. Its presence may increase the risk of future arbovirus outbreaks in Wooster, Ohio. This study stresses the importance of actively monitoring the density and distribution of all members of the Ae. japonicus complex.
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Affiliation(s)
| | - Alexander Delong
- Biochemistry & Molecular Biology Program, The College of Wooster, Wooster, OH 44691, USA
| | - Moses Luri
- Departments of Economics, and Mathematical and Computational Sciences, The College of Wooster, Wooster, OH 44691, USA
- Department of Mathematical and Computational Sciences, The College of Wooster, Wooster, OH 44691, USA
| | - Jelmer W. Poelstra
- Molecular and Cellular Imaging Center, Ohio State University, Wooster, OH 44691, USA
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9
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Da Re D, Van Bortel W, Reuss F, Müller R, Boyer S, Montarsi F, Ciocchetta S, Arnoldi D, Marini G, Rizzoli A, L'Ambert G, Lacour G, Koenraadt CJM, Vanwambeke SO, Marcantonio M. dynamAedes: a unified modelling framework for invasive Aedes mosquitoes. Parasit Vectors 2022; 15:414. [PMID: 36348368 PMCID: PMC9641901 DOI: 10.1186/s13071-022-05414-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 07/27/2022] [Indexed: 11/11/2022] Open
Abstract
Mosquito species belonging to the genus Aedes have attracted the interest of scientists and public health officers because of their capacity to transmit viruses that affect humans. Some of these species were brought outside their native range by means of trade and tourism and then colonised new regions thanks to a unique combination of eco-physiological traits. Considering mosquito physiological and behavioural traits to understand and predict their population dynamics is thus a crucial step in developing strategies to mitigate the local densities of invasive Aedes populations. Here, we synthesised the life cycle of four invasive Aedes species (Ae. aegypti, Ae. albopictus, Ae. japonicus and Ae. koreicus) in a single multi-scale stochastic modelling framework which we coded in the R package dynamAedes. We designed a stage-based and time-discrete stochastic model driven by temperature, photo-period and inter-specific larval competition that can be applied to three different spatial scales: punctual, local and regional. These spatial scales consider different degrees of spatial complexity and data availability by accounting for both active and passive dispersal of mosquito species as well as for the heterogeneity of the input temperature data. Our overarching aim was to provide a flexible, open-source and user-friendly tool rooted in the most updated knowledge on the species' biology which could be applied to the management of invasive Aedes populations as well as to more theoretical ecological inquiries.
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Affiliation(s)
- Daniele Da Re
- Georges Lemaître Center for Earth and Climate Research, Earth and Life Institute, UCLouvain, Louvain-la-Neuve, Belgium.
| | - Wim Van Bortel
- Unit Entomology and the Outbreak Research Team, Tropical Medicine Institute, Antwerp, Belgium
| | - Friederike Reuss
- Senckenberg Biodiversity and Climate Research Centre, Frankfurt am Main, Germany
- Institute of Occupational, Social and Environmental Medicine, Goethe University, Frankfurt am Main, Germany
| | - Ruth Müller
- Unit Entomology and the Outbreak Research Team, Tropical Medicine Institute, Antwerp, Belgium
| | - Sebastien Boyer
- Medical and Veterinary Entomology Unit, Institute Pasteur du Cambodge, Phnom Penh, Cambodia
| | - Fabrizio Montarsi
- Laboratory of Parasitology, National reference centre/OIE collaborating centre for diseases at the animal-human interface, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Silvia Ciocchetta
- The University of Queensland, School of Veterinary Science, Gatton, Australia
| | - Daniele Arnoldi
- Research and Innovation Centre, Fondazione Edmund Mach, San Michele all'Adige, Italy
| | - Giovanni Marini
- Research and Innovation Centre, Fondazione Edmund Mach, San Michele all'Adige, Italy
| | - Annapaola Rizzoli
- Research and Innovation Centre, Fondazione Edmund Mach, San Michele all'Adige, Italy
| | | | | | - Constantianus J M Koenraadt
- Wageningen University & Research, Department of Plant Sciences, Laboratory of Entomology, Wageningen, The Netherlands
| | - Sophie O Vanwambeke
- Georges Lemaître Center for Earth and Climate Research, Earth and Life Institute, UCLouvain, Louvain-la-Neuve, Belgium
| | - Matteo Marcantonio
- Evolutionary Ecology and Genetics Group, Earth and Life Institute, UC Louvain, Louvain-la-Neuve, Belgium.
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10
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Ganassi S, De Cristofaro A, Di Criscio D, Petrarca S, Leopardi C, Guarnieri A, Pietrangelo L, Venditti N, Di Marco R, Petronio Petronio G. The new invasive mosquito species Aedes koreicus as vector-borne diseases in the European area, a focus on Italian region: What we know from the scientific literature. Front Microbiol 2022; 13:931994. [PMID: 35958131 PMCID: PMC9358684 DOI: 10.3389/fmicb.2022.931994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 06/29/2022] [Indexed: 11/13/2022] Open
Abstract
The increased mobility of goods, people, and animals worldwide has caused the spread of several arthropod vectors, leading to an increased risk of animal and human infections. Aedes koreicus is a common species in South Korea, China, Japan, and Russia. Due to its cold-resistant dormant eggs, the adults last from the late summer until the autumn seasons. For these reasons, it seems to be better adapted to colder temperatures, favoring its colonization of hilly and pre-alpine areas. Its first appearance in Europe was in 2008 in Belgium, where it is currently established. The species was subsequently detected in Italy in 2011, European Russia, Germany, the Swiss–Italian border region, Hungary, Slovenia, Crimea, Austria, the Republic of Kazakhstan, and the Netherlands. The role of A. koreicus in the transmission of vector-borne pathogens remains unclear. The available scientific evidence is very old, often not available in English or not indexed in international databases, and therefore difficult to find. According to the literature reviewed, A. koreicus can be considered a new invasive mosquito species in Europe, establishing populations on the European continent. In addition, experimental evidence demonstrated its vector competence for both Dirofilaria immitis and Chikungunya and is relatively low for ZIKA but not for Western Nile Virus. On the other hand, even if the field evidence does not confirm the experimental findings, it is currently not possible to exclude with absolute certainty the potential involvement of this species in the spread, emergence, or re-emergence of these vector-borne disease agents.
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Affiliation(s)
- Sonia Ganassi
- Department of Agricultural, Environmental and Food Sciences (DiAAA), Università degli Studi del Molise, Campobasso, Italy
| | - Antonio De Cristofaro
- Department of Agricultural, Environmental and Food Sciences (DiAAA), Università degli Studi del Molise, Campobasso, Italy
| | - Dalila Di Criscio
- Department of Agricultural, Environmental and Food Sciences (DiAAA), Università degli Studi del Molise, Campobasso, Italy
| | - Sonia Petrarca
- Department of Agricultural, Environmental and Food Sciences (DiAAA), Università degli Studi del Molise, Campobasso, Italy
| | - Chiara Leopardi
- Department of Medicine and Health Science (DiMeS), Università degli Studi del Molise, Campobasso, Italy
| | - Antonio Guarnieri
- Department of Medicine and Health Science (DiMeS), Università degli Studi del Molise, Campobasso, Italy
| | - Laura Pietrangelo
- Department of Medicine and Health Science (DiMeS), Università degli Studi del Molise, Campobasso, Italy
| | - Noemi Venditti
- Department of Medicine and Health Science (DiMeS), Università degli Studi del Molise, Campobasso, Italy
| | - Roberto Di Marco
- Department of Medicine and Health Science (DiMeS), Università degli Studi del Molise, Campobasso, Italy
- *Correspondence: Roberto Di Marco
| | - Giulio Petronio Petronio
- Department of Medicine and Health Science (DiMeS), Università degli Studi del Molise, Campobasso, Italy
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11
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Hernández-Triana LM, Folly AJ, Sewgobind S, Lean FZX, Ackroyd S, Nuñez A, Delacour S, Drago A, Visentin P, Mansfield KL, Johnson N. Susceptibility of Aedes albopictus and Culex quinquefasciatus to Japanese encephalitis virus. Parasit Vectors 2022; 15:210. [PMID: 35710580 PMCID: PMC9204976 DOI: 10.1186/s13071-022-05329-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 05/19/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Japanese encephalitis virus (JEV) is the principal cause of mosquito-borne encephalitis in human populations within Asia. If introduced into new geographic areas, it could have further implications for public and animal health. However, potential mosquito vectors for virus transmission have not been fully investigated. The Asian tiger mosquito, Aedes albopictus, has emerged in Europe and is now expanding its geographical range into more northerly latitudes. Culex quinquefasciatus, although absent from Europe, has been detected in Turkey, a country with territory in Europe, and could act as a vector for JEV in other regions. To assess the risk of these invasive species acting as vectors for JEV and therefore potentially contributing to its geographical expansion, we have investigated the vector competence of Ae. albopictus and Cx. quinquefasciatus. METHODS Two colonised lines of Ae. albopictus (Italy and Spain) and a line of Cx. quinquefasciatus (Tanzania) were compared for susceptibility to infection by oral feeding with JEV strain SA-14, genotype III at 106 PFU/ml and maintained at 25 °C. Specimens were processed at 7 and 14 days post-inoculation (dpi). Rates of infection, dissemination and transmission were assessed through detection of viral RNA by real-time polymerase chain reaction (RT-PCR) in mosquito body, legs and saliva, respectively, at each time point. Where possible, infection and dissemination were confirmed by immunohistochemical (IHC) detection of the JEV envelope protein. RESULTS Aedes albopictus from Italy showed no susceptibility to infection with JEV strain SA-14. Conversely, Ae. albopictus colonised in Spain was susceptible and 100% of infected mosquitoes that were subjected to saliva screening expressed viral RNA at 14 dpi. Culex quinquefasciatus was highly susceptible to infection as early as 7 dpi and 50% of infected mosquitoes that were subjected to saliva screening expressed viral RNA at 14 dpi. Infection and dissemination were confirmed in Cx. quinquefasciatus by IHC detection of JEV envelope protein in both the mid-gut and salivary glands. CONCLUSIONS Aedes albopictus from two different locations in Europe range from being susceptible to JEV and capable of transmission through to being resistant. Culex quinquefasciatus also appears highly susceptible; therefore, both species could potentially act as vectors for JEV and facilitate the emergence of JEV into new regions.
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Affiliation(s)
| | - Arran J Folly
- Vector Borne Diseases, Animal and Plant Health Agency, Addlestone, Surrey, UK
| | - Sanam Sewgobind
- Vector Borne Diseases, Animal and Plant Health Agency, Addlestone, Surrey, UK
| | - Fabian Z X Lean
- Pathology and Animal Sciences Department, Animal and Plant Health Agency, Addlestone, Surrey, UK
| | - Stuart Ackroyd
- Pathology and Animal Sciences Department, Animal and Plant Health Agency, Addlestone, Surrey, UK
| | - Alejandro Nuñez
- Pathology and Animal Sciences Department, Animal and Plant Health Agency, Addlestone, Surrey, UK
| | - Sarah Delacour
- Veterinary Faculty, University of Zaragoza, Zaragoza, Spain
| | - Andrea Drago
- Entostudio SrL, Viale del Lavoro 66, Ponte San Nicolò, Padua, Italy
| | | | - Karen L Mansfield
- Vector Borne Diseases, Animal and Plant Health Agency, Addlestone, Surrey, UK
| | - Nicholas Johnson
- Vector Borne Diseases, Animal and Plant Health Agency, Addlestone, Surrey, UK
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Vector Competence of the Invasive Mosquito Species Aedes koreicus for Arboviruses and Interference with a Novel Insect Specific Virus. Viruses 2021; 13:v13122507. [PMID: 34960776 PMCID: PMC8704790 DOI: 10.3390/v13122507] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 12/10/2021] [Accepted: 12/11/2021] [Indexed: 12/01/2022] Open
Abstract
The global spread of invasive mosquito species increases arbovirus infections. In addition to the invasive species Aedes albopictus and Aedes japonicus, Aedes koreicus has spread within Central Europe. Extensive information on its vector competence is missing. Ae. koreicus from Germany were investigated for their vector competence for chikungunya virus (CHIKV), Zika virus (ZIKV) and West Nile virus (WNV). Experiments were performed under different climate conditions (27 ± 5 °C; 24 ± 5 °C) for fourteen days. Ae. koreicus had the potential to transmit CHIKV and ZIKV but not WNV. Transmission was exclusively observed at the higher temperature, and transmission efficiency was rather low, at 4.6% (CHIKV) or 4.7% (ZIKV). Using a whole virome analysis, a novel mosquito-associated virus, designated Wiesbaden virus (WBDV), was identified in Ae. koreicus. Linking the WBDV infection status of single specimens to their transmission capability for the arboviruses revealed no influence on ZIKV transmission. In contrast, a coinfection of WBDV and CHIKV likely has a boost effect on CHIKV transmission. Due to its current distribution, the risk of arbovirus transmission by Ae. koreicus in Europe is rather low but might gain importance, especially in regions with higher temperatures. The impact of WBDV on arbovirus transmission should be analyzed in more detail.
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13
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Outammassine A, Zouhair S, Loqman S. Global potential distribution of three underappreciated arboviruses vectors (Aedes japonicus, Aedes vexans and Aedes vittatus) under current and future climate conditions. Transbound Emerg Dis 2021; 69:e1160-e1171. [PMID: 34821477 DOI: 10.1111/tbed.14404] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 10/25/2021] [Accepted: 11/16/2021] [Indexed: 11/29/2022]
Abstract
Arboviruses (arthropod-borne viruses) are expanding their geographic range, posing significant health threats to millions of people worldwide. This expansion is associated with efficient and suitable vector availability. Apart from the well-known Aedes aegypti and Ae. albopictus, other Aedes species may potentially promote the geographic spread of arboviruses because these viruses have similar vector requirements. Aedes japonicus, Ae. vexans and Ae. vittatus are a growing concern, given their potential and known vector competence for several arboviruses including dengue, chikungunya, and Zika viruses. In the present study, we developed detailed maps of their global potential distributions under both current and future (2050) climate conditions, using an ecological niche modeling approach (Maxent). Under present-day conditions, Ae. japonicus and Ae. vexans have suitable areas in the northeastern United States, across Europe and in southeastern China, whereas the tropical regions of South America, Africa and Asia are more suitable for Ae. vittatus. Future scenarios anticipated range changes for the three species, with each expected to expand into new areas that are currently not suitable. By 2050, Ae. japonicus will have a broader potential distribution across much of Europe, the United States, western Russia and central Asia. Aedes vexans may be able to expand its range, especially in Libya, Egypt and southern Australia. For Ae. vittatus, future projections indicated areas at risk in sub-Saharan Africa and the Middle East. As such, these species deserve as much attention as Ae. aegypti and Ae. albopictus when processing arboviruses risk assessments and our findings may help to better understand the potential distribution of each species.
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Affiliation(s)
- Abdelkrim Outammassine
- Laboratoire de Lutte contre les Maladies Infectieuses, Department of Medical Biology, Faculty of Medicine and Pharmacy, Cadi Ayyad University, Marrakech, Morocco
| | - Said Zouhair
- Laboratoire de Lutte contre les Maladies Infectieuses, Department of Medical Biology, Faculty of Medicine and Pharmacy, Cadi Ayyad University, Marrakech, Morocco.,Laboratory of Bacteriology-Virology, Avicienne Hospital Military, Marrakech, Morocco
| | - Souad Loqman
- Laboratoire de Lutte contre les Maladies Infectieuses, Department of Medical Biology, Faculty of Medicine and Pharmacy, Cadi Ayyad University, Marrakech, Morocco
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14
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Zika Virus Potential Vectors among Aedes Mosquitoes from Hokkaido, Northern Japan: Implications for Potential Emergence of Zika Disease. Pathogens 2021; 10:pathogens10080938. [PMID: 34451402 PMCID: PMC8399329 DOI: 10.3390/pathogens10080938] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 07/18/2021] [Accepted: 07/21/2021] [Indexed: 11/17/2022] Open
Abstract
The Zika virus (ZIKV) is a rapidly expanding mosquito-borne virus that causes febrile illness in humans. Aedes aegypti and Ae. albopictus are the primary ZIKV vectors; however, the potential vector competence of other Aedes mosquitoes distributed in northern Japan (Palearctic ecozone) are not yet known. In this study, the susceptibility to Zika virus infection of three Aedes mosquitoes distributed in the main city of the northern Japan and their capacities as vectors for ZIKV were evaluated. Field-collected mosquitoes were fed ad libitum an infectious blood meal containing the ZIKV PRVABC59. The Zika virus was detected in the abdomen of Ae. galloisi and Ae. japonicus at 2–10 days post infection (PI), and from the thorax and head of Ae. galloisi at 10 days PI, resulting in 17.6% and 5.9% infection rates, respectively. The Zika virus was not detected from Ae. punctor at any time. Some northern Japanese Aedes could be suspected as vectors of ZIKV but the risk may be low when compared with major ZIKV vectors.
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15
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Wing Morphometrics of Aedes Mosquitoes from North-Eastern France. INSECTS 2021; 12:insects12040341. [PMID: 33921410 PMCID: PMC8069731 DOI: 10.3390/insects12040341] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 04/01/2021] [Accepted: 04/08/2021] [Indexed: 12/17/2022]
Abstract
BACKGROUND In the context of the increasing circulation of arboviruses, a simple, fast and reliable identification method for mosquitoes is needed. Geometric morphometrics have proven useful for mosquito classification and have been used around the world on known vectors such as Aedes albopictus. Morphometrics applied on French indigenous mosquitoes would prove useful in the case of autochthonous outbreaks of arboviral diseases. METHODS We applied geometric morphometric analysis on six indigenous and invasive species of the Aedes genus in order to evaluate its efficiency for mosquito classification. RESULTS Six species of Aedes mosquitoes (Ae. albopictus, Ae. cantans, Ae. cinereus, Ae. sticticus, Ae. japonicus and Ae. rusticus) were successfully differentiated with Canonical Variate Analysis of the Procrustes dataset of superimposed coordinates of 18 wing landmarks. CONCLUSIONS Geometric morphometrics are effective tools for the rapid, inexpensive and reliable classification of at least six species of the Aedes genus in France.
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Smitz N, De Wolf K, Deblauwe I, Kampen H, Schaffner F, De Witte J, Schneider A, Verlé I, Vanslembrouck A, Dekoninck W, Meganck K, Gombeer S, Vanderheyden A, De Meyer M, Backeljau T, Werner D, Müller R, Van Bortel W. Population genetic structure of the Asian bush mosquito, Aedes japonicus (Diptera, Culicidae), in Belgium suggests multiple introductions. Parasit Vectors 2021; 14:179. [PMID: 33766104 PMCID: PMC7995749 DOI: 10.1186/s13071-021-04676-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 03/09/2021] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Aedes japonicus japonicus has expanded beyond its native range and has established in multiple European countries, including Belgium. In addition to the population located at Natoye, Belgium, locally established since 2002, specimens were recently collected along the Belgian border. The first objective of this study was therefore to investigate the origin of these new introductions, which were assumed to be related to the expansion of the nearby population in western Germany. Also, an intensive elimination campaign was undertaken at Natoye between 2012 and 2015, after which the species was declared to be eradicated. This species was re-detected in 2017, and thus the second objective was to investigate if these specimens resulted from a new introduction event and/or from a few undetected specimens that escaped the elimination campaign. METHODS Population genetic variation at nad4 and seven microsatellite loci was surveyed in 224 and 68 specimens collected in Belgium and Germany, respectively. German samples were included as reference to investigate putative introduction source(s). At Natoye, 52 and 135 specimens were collected before and after the elimination campaign, respectively, to investigate temporal changes in the genetic composition and diversity. RESULTS At Natoye, the genotypic microsatellite make-up showed a clear difference before and after the elimination campaign. Also, the population after 2017 displayed an increased allelic richness and number of private alleles, indicative of new introduction(s). However, the Natoye population present before the elimination programme is believed to have survived at low density. At the Belgian border, clustering results suggest a relation with the western German population. Whether the introduction(s) occur via passive human-mediated ground transport or, alternatively, by natural spread cannot be determined yet from the dataset. CONCLUSION Further introductions within Belgium are expected to occur in the near future, especially along the eastern Belgian border, which is at the front of the invasion of Ae. japonicus towards the west. Our results also point to the complexity of controlling invasive species, since 4 years of intense control measures were found to be not completely successful at eliminating this exotic at Natoye.
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Affiliation(s)
- Nathalie Smitz
- Royal Museum for Central Africa (BopCo & Biology Department), Leuvensesteenweg 17, 3080, Tervuren, Belgium.
| | - Katrien De Wolf
- The Unit of Entomology, Department of Biomedical Sciences, Institute of Tropical Medicine, Nationalestraat 155, 2000, Antwerp, Belgium
| | - Isra Deblauwe
- The Unit of Entomology, Department of Biomedical Sciences, Institute of Tropical Medicine, Nationalestraat 155, 2000, Antwerp, Belgium
| | - Helge Kampen
- Friedrich Loeffler Institut, Federal Research Institute for Animal Health, Südufer 10, 17493, Greifswald-Insel Riems, Germany
| | | | - Jacobus De Witte
- The Unit of Entomology, Department of Biomedical Sciences, Institute of Tropical Medicine, Nationalestraat 155, 2000, Antwerp, Belgium
| | - Anna Schneider
- The Unit of Entomology, Department of Biomedical Sciences, Institute of Tropical Medicine, Nationalestraat 155, 2000, Antwerp, Belgium
| | - Ingrid Verlé
- The Unit of Entomology, Department of Biomedical Sciences, Institute of Tropical Medicine, Nationalestraat 155, 2000, Antwerp, Belgium
| | - Adwine Vanslembrouck
- The Unit of Entomology, Department of Biomedical Sciences, Institute of Tropical Medicine, Nationalestraat 155, 2000, Antwerp, Belgium.,Royal Belgian Institute of Natural Sciences (BopCo & Scientific Heritage Service), Vautierstraat 29, 1000, Brussels, Belgium
| | - Wouter Dekoninck
- Royal Belgian Institute of Natural Sciences (BopCo & Scientific Heritage Service), Vautierstraat 29, 1000, Brussels, Belgium
| | - Kenny Meganck
- Royal Museum for Central Africa (BopCo & Biology Department), Leuvensesteenweg 17, 3080, Tervuren, Belgium
| | - Sophie Gombeer
- Royal Belgian Institute of Natural Sciences (BopCo & Scientific Heritage Service), Vautierstraat 29, 1000, Brussels, Belgium
| | - Ann Vanderheyden
- Royal Belgian Institute of Natural Sciences (BopCo & Scientific Heritage Service), Vautierstraat 29, 1000, Brussels, Belgium
| | - Marc De Meyer
- Royal Museum for Central Africa (BopCo & Biology Department), Leuvensesteenweg 17, 3080, Tervuren, Belgium
| | - Thierry Backeljau
- Royal Belgian Institute of Natural Sciences (BopCo & Scientific Heritage Service), Vautierstraat 29, 1000, Brussels, Belgium.,Evolutionary Ecology Group, University of Antwerp, Universiteitsplein 1, 2610, Antwerp, Belgium
| | - Doreen Werner
- Leibniz Centre for Agricultural Landscape Research, Eberswalder Straße 84, 15374, Müncheberg, Germany
| | - Ruth Müller
- The Unit of Entomology, Department of Biomedical Sciences, Institute of Tropical Medicine, Nationalestraat 155, 2000, Antwerp, Belgium
| | - Wim Van Bortel
- The Unit of Entomology, Department of Biomedical Sciences, Institute of Tropical Medicine, Nationalestraat 155, 2000, Antwerp, Belgium.,Outbreak Research Team, Institute of Tropical Medicine, Nationalestraat 155, 2000, Antwerp, Belgium
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Bellone R, Failloux AB. The Role of Temperature in Shaping Mosquito-Borne Viruses Transmission. Front Microbiol 2020; 11:584846. [PMID: 33101259 PMCID: PMC7545027 DOI: 10.3389/fmicb.2020.584846] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Accepted: 09/07/2020] [Indexed: 12/28/2022] Open
Abstract
Mosquito-borne diseases having the greatest impact on human health are typically prevalent in the tropical belt of the world. However, these diseases are conquering temperate regions, raising the question of the role of temperature on their dynamics and expansion. Temperature is one of the most significant abiotic factors affecting, in many ways, insect vectors and the pathogens they transmit. Here, we debate the veracity of this claim by synthesizing current knowledge on the effects of temperature on arboviruses and their vectors, as well as the outcome of their interactions.
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Affiliation(s)
- Rachel Bellone
- Department of Virology, Arboviruses and Insect Vectors, Institut Pasteur, Paris, France
- Sorbonne Université, Collège Doctoral, Paris, France
| | - Anna-Bella Failloux
- Department of Virology, Arboviruses and Insect Vectors, Institut Pasteur, Paris, France
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18
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Glavinic U, Varga J, Paslaru AI, Hauri J, Torgerson P, Schaffner F, Veronesi E. Assessing the role of two populations of Aedes japonicus japonicus for Zika virus transmission under a constant and a fluctuating temperature regime. Parasit Vectors 2020; 13:479. [PMID: 32948231 PMCID: PMC7501641 DOI: 10.1186/s13071-020-04361-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Accepted: 09/11/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Since the huge epidemic of Zika virus (ZIKV) in Brazil in 2015, questions were raised to understand which mosquito species could transmit the virus. Aedes aegypti has been described as the main vector. However, other Aedes species (e.g. Ae. albopictus and Ae. japonicus) proven to be competent for other flaviviruses (e.g. West Nile, dengue and yellow fever), have been described as potential vectors for ZIKV under laboratory conditions. One of these, the Asian bush mosquito, Ae. japonicus, is widely distributed with high abundances in central-western Europe. In the present study, infection, dissemination and transmission rates of ZIKV (Dak84 strain) in two populations of Ae. japonicus from Switzerland (Zürich) and France (Steinbach, Haut-Rhin) were investigated under constant (27 °C) and fluctuating (14-27 °C, mean 23 °C) temperature regimes. RESULTS The two populations were each able to transmit ZIKV under both temperature regimes. Infectious virus particles were detected in the saliva of females from both populations, regardless of the incubation temperature regime, from 7 days post-exposure to infectious rabbit blood. The highest amount of plaque forming units (PFU) (400/ml) were recorded 14 days post-oral infection in the Swiss population incubated at a constant temperature. No difference in terms of infection, dissemination and transmission rate were found between mosquito populations. Temperature had no effect on infection rate but the fluctuating temperature regime resulted in higher dissemination rates compared to constant temperature, regardless of the population. Finally, transmission efficiency ranged between 7-23% and 7-10% for the constant temperature and 0-10% and 3-27% under fluctuating temperatures for the Swiss and the French populations, respectively. CONCLUSIONS To the best of our knowledge, this is the first study confirming vector competence for ZIKV of Ae. japonicus originating from Switzerland and France at realistic summer temperatures under laboratory conditions. Considering the continuous spread of this species in the northern part of Europe and its adaptation at cooler temperatures, preventative control measures should be adopted to prevent possible ZIKV epidemics.
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Affiliation(s)
- Uros Glavinic
- National Centre for Vector Entomology, Institute of Parasitology, Vetsuisse Faculty, University of Zürich, Zürich, Switzerland.,Department of Biology, Faculty of Veterinary Medicine, University of Belgrade, Belgrade, Serbia
| | - Jasmin Varga
- National Centre for Vector Entomology, Institute of Parasitology, Vetsuisse Faculty, University of Zürich, Zürich, Switzerland
| | - Anca Ioana Paslaru
- National Centre for Vector Entomology, Institute of Parasitology, Vetsuisse Faculty, University of Zürich, Zürich, Switzerland
| | - Jeannine Hauri
- National Centre for Vector Entomology, Institute of Parasitology, Vetsuisse Faculty, University of Zürich, Zürich, Switzerland
| | - Paul Torgerson
- Section of Epidemiology, Vetsuisse Faculty, University of Zürich, Zürich, Switzerland
| | - Francis Schaffner
- National Centre for Vector Entomology, Institute of Parasitology, Vetsuisse Faculty, University of Zürich, Zürich, Switzerland.,Francis Schaffner Consultancy, Lörracherstrasse 50, 4125, Riehen, Switzerland
| | - Eva Veronesi
- National Centre for Vector Entomology, Institute of Parasitology, Vetsuisse Faculty, University of Zürich, Zürich, Switzerland.
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Blagrove MSC, Caminade C, Diggle PJ, Patterson EI, Sherlock K, Chapman GE, Hesson J, Metelmann S, McCall PJ, Lycett G, Medlock J, Hughes GL, Della Torre A, Baylis M. Potential for Zika virus transmission by mosquitoes in temperate climates. Proc Biol Sci 2020; 287:20200119. [PMID: 32635867 PMCID: PMC7423484 DOI: 10.1098/rspb.2020.0119] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Mosquito-borne Zika virus (ZIKV) transmission has almost exclusively been detected in the tropics despite the distributions of its primary vectors extending farther into temperate regions. Therefore, it is unknown whether ZIKV's range has reached a temperature-dependent limit, or if it can spread into temperate climates. Using field-collected mosquitoes for biological relevance, we found that two common temperate mosquito species, Aedes albopictus and Ochlerotatus detritus, were competent for ZIKV. We orally exposed mosquitoes to ZIKV and held them at between 17 and 31°C, estimated the time required for mosquitoes to become infectious, and applied these data to a ZIKV spatial risk model. We identified a minimum temperature threshold for the transmission of ZIKV by mosquitoes between 17 and 19°C. Using these data, we generated standardized basic reproduction number R0-based risk maps and we derived estimates for the length of the transmission season for recent and future climate conditions. Our standardized R0-based risk maps show potential risk of ZIKV transmission beyond the current observed range in southern USA, southern China and southern European countries. Transmission risk is simulated to increase over southern and Eastern Europe, northern USA and temperate regions of Asia (northern China, southern Japan) in future climate scenarios.
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Affiliation(s)
- Marcus S C Blagrove
- Department of Epidemiology and Population Health, Institute of Infection and Global Health, University of Liverpool, Liverpool Science Park-Innovation Centre 2, 131 Mount Pleasant, Liverpool L3 5TF, UK.,National Institute of Health Research Health Protection Research Unit in Emerging and Zoonotic Infections, University of Liverpool, Liverpool, UK
| | - Cyril Caminade
- Department of Epidemiology and Population Health, Institute of Infection and Global Health, University of Liverpool, Liverpool Science Park-Innovation Centre 2, 131 Mount Pleasant, Liverpool L3 5TF, UK.,National Institute of Health Research Health Protection Research Unit in Emerging and Zoonotic Infections, University of Liverpool, Liverpool, UK
| | - Peter J Diggle
- Lancaster Medical School, University of Lancaster, Lancaster, UK
| | - Edward I Patterson
- Departments of Vector Biology and Tropical Disease Biology, Centre for Neglected Tropical Diseases, Liverpool School of Tropical Medicine, Liverpool, UK
| | - Ken Sherlock
- Department of Epidemiology and Population Health, Institute of Infection and Global Health, University of Liverpool, Liverpool Science Park-Innovation Centre 2, 131 Mount Pleasant, Liverpool L3 5TF, UK
| | - Gail E Chapman
- Department of Epidemiology and Population Health, Institute of Infection and Global Health, University of Liverpool, Liverpool Science Park-Innovation Centre 2, 131 Mount Pleasant, Liverpool L3 5TF, UK
| | - Jenny Hesson
- Department of Epidemiology and Population Health, Institute of Infection and Global Health, University of Liverpool, Liverpool Science Park-Innovation Centre 2, 131 Mount Pleasant, Liverpool L3 5TF, UK.,Department of Medical Biochemistry and Microbiology, Zoonosis Science Center, Uppsala University, Uppsalam, Sweden
| | - Soeren Metelmann
- Department of Epidemiology and Population Health, Institute of Infection and Global Health, University of Liverpool, Liverpool Science Park-Innovation Centre 2, 131 Mount Pleasant, Liverpool L3 5TF, UK.,National Institute of Health Research Health Protection Research Unit in Emerging and Zoonotic Infections, University of Liverpool, Liverpool, UK
| | - Philip J McCall
- Vector Biology Department, Liverpool School of Tropical Medicine, Liverpool, UK
| | - Gareth Lycett
- Vector Biology Department, Liverpool School of Tropical Medicine, Liverpool, UK
| | - Jolyon Medlock
- Medical Entomology and Zoonoses Ecology, Public Health England, HPA, Salisbury, UK
| | - Grant L Hughes
- Departments of Vector Biology and Tropical Disease Biology, Centre for Neglected Tropical Diseases, Liverpool School of Tropical Medicine, Liverpool, UK
| | - Alessandra Della Torre
- Department of Public Health & Infectious Diseases, Sapienza University of Rome, Laboratory. Affiliated to Instituto Pasteur Italia-Fondazione Cenci Bolognetti, Rome, Italy
| | - Matthew Baylis
- Department of Epidemiology and Population Health, Institute of Infection and Global Health, University of Liverpool, Liverpool Science Park-Innovation Centre 2, 131 Mount Pleasant, Liverpool L3 5TF, UK.,National Institute of Health Research Health Protection Research Unit in Emerging and Zoonotic Infections, University of Liverpool, Liverpool, UK
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20
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Shahhosseini N, Wong G, Frederick C, Kobinger GP. Mosquito Species Composition and Abundance in Quebec, Eastern Canada. JOURNAL OF MEDICAL ENTOMOLOGY 2020; 57:1025-1031. [PMID: 32052030 DOI: 10.1093/jme/tjaa020] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Indexed: 06/10/2023]
Abstract
Given current and projected changes in the climate, the composition of mosquito species is predicted to shift geographically with implications for the transmission dynamics of vector-borne pathogens. Many mosquito species are rarely collected in Canada and their history is poorly understood; thus assessing their potential role as vectors for pathogenesis is difficult. Mosquitoes were collected from four trapping sites in Quebec Province, Canada, from June to September during 2018 and 2019 using BG sentinel traps. From all morphologically identified female mosquitoes, at least one specimen was selected for identification confirmation using the DNA-barcoding technique. Sequences were subjected to alignment and a Neighbor-Joining (NJ) tree was created using Geneious software. In total, 2,752 female mosquitoes belonging to 20 species over five genera: including Aedes (Ae.), Anopheles (An.), Culex (Cx.), Culiseta (Cu.), Coquillettidia (Cq.) were collected. The predominant mosquito was found to be Ae. cinereus. The highest number of mosquito species was captured in July, followed by August, September, and then June. Five genera were characterized by a distinctive set of cytochrome oxidase I (COI) sequences that formed well-supported clusters in the NJ-tree. The presence of Ae.japonicus in Quebec provides an initial look at the distribution of mosquito species in eastern Canada, which may put Canadians at risk of a wider range of arboviruses.
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Affiliation(s)
- Nariman Shahhosseini
- Département de Microbiologie-Infectiologie et d'Immunologie, Université Laval, Québec City, Québec, Canada
| | - Gary Wong
- Département de Microbiologie-Infectiologie et d'Immunologie, Université Laval, Québec City, Québec, Canada
- Pasteur Institute of Shanghai, China
| | - Christina Frederick
- Department of Biochemistry, Microbiology and Bioinformatics, Université Laval, Québec City, Québec, Canada
| | - Gary P Kobinger
- Département de Microbiologie-Infectiologie et d'Immunologie, Université Laval, Québec City, Québec, Canada
- Department of Medical Microbiology, University of Manitoba, Winnipeg, Manitoba, Canada
- Department of Immunology, University of Manitoba, Winnipeg, Manitoba, Canada
- Department of Pathology and Laboratory Medicine, University of Pennsylvania School of Medicine, Philadelphia, PA
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21
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Thermal preferences of subtropical Aedes aegypti and temperate Ae. japonicus mosquitoes. J Therm Biol 2020; 91:102637. [PMID: 32716879 DOI: 10.1016/j.jtherbio.2020.102637] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 06/04/2020] [Accepted: 06/04/2020] [Indexed: 11/21/2022]
Abstract
Temperature is an important determinant affecting the capacity of disease vectors like mosquitoes (Culicidae) to transmit disease agents. Although the impact of temperature on vector-borne disease dynamics has been studied intensively, the actual temperature encountered by the vector in a heterogeneous landscape is rarely taken into account. If disease vectors have temperature preferences and therefore select specific microhabitats, this would substantially influence key life history traits that determine transmission intensity. The thermal preferences of subtropical Aedes aegypti and temperate Ae. japonicus mosquitoes were investigated in a temperature gradient set-up consisting of a Plexiglas box on top of an aluminium plate on two thermal regulators. Blood-fed (one day after feeding) and unfed (non-blood-fed) mosquitoes were released in small (15-20 °C, 20-25 °C, 25-30 °C) and large (15-30 °C, 30-45 °C) temperature gradients to assess their thermal preferences after 15 min. Additionally, the effect of humidity was investigated in a two-choice chamber setup. Both mosquito species avoided higher temperatures, pronouncedly dangerously high temperatures in the 30-45 °C gradient. At lower temperatures, blood-fed mosquitoes preferred the cooler sides of the 20-25 °C and 25-30 °C gradient, which were all below their rearing temperature. In the lowest gradient of 15-20 °C, no preferences were found. The thermal preference of unfed mosquitoes was similar to that of the blood-fed mosquitoes. No humidity preference or effect of humidity on temperature preferences was observed within the tested range (40-90%). The set-up allows for assessing the thermal preference of mosquitoes under controlled conditions. The observed preference of mosquitoes for cooler temperatures would increase their longevity and slow down pathogen development. If similar microhabitat selection is observed in the field, vector borne disease models should be adjusted accordingly.
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22
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Cunze S, Kochmann J, Klimpel S. Global occurrence data improve potential distribution models for Aedes japonicus japonicus in non-native regions. PEST MANAGEMENT SCIENCE 2020; 76:1814-1822. [PMID: 31814250 DOI: 10.1002/ps.5710] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 09/30/2019] [Accepted: 12/02/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND There is great interest in modelling the distribution of invasive species, particularly from the point of view of management. However, distribution modelling for invasive species using ecological niche models (ENMs) involves multiple challenges. Owing to the short time span since the introduction or arrival of a non-indigenous species and the associated dispersal limitations, applying regular ENMs at an early stage of the invasion process may result in an underestimation of the potential niche in the new ranges. This topic is dealt with here using the example of Aedes japonicus japonicus, a vector competent mosquito species for a number of diseases. RESULTS We found high niche unfilling for the species' non-native range niches in Europe and North America compared with the native range niche, which can be explained by the early stage of the invasion process. Comparing four different ENMs based on: (i) the European and (ii) the North American non-native range occurrence data, (iii) (derived) native range occurrence data, and (iv) all available occurrence data together, we found large differences in the projected climatic suitability, with the global data model projecting larger areas with climatic suitability. CONCLUSION ENM in biological invasions can be challenging, especially when distribution data are only poorly available. We suggest one possible way to project climatic suitability for Aedes j. japonicus despite poor data availability for the non-native ranges and missing occurrences from the native range. We discuss aspects of the lack of information and the associated implications for modelling. © 2020 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
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Affiliation(s)
- Sarah Cunze
- Institute of Ecology, Evolution and Diversity, Goethe-University, Frankfurt, Germany
- Senckenberg Biodiversity and Climate Research Centre, Frankfurt, Germany
| | - Judith Kochmann
- Institute of Ecology, Evolution and Diversity, Goethe-University, Frankfurt, Germany
- Senckenberg Biodiversity and Climate Research Centre, Frankfurt, Germany
| | - Sven Klimpel
- Institute of Ecology, Evolution and Diversity, Goethe-University, Frankfurt, Germany
- Senckenberg Biodiversity and Climate Research Centre, Frankfurt, Germany
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23
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Abbo SR, Visser TM, Wang H, Göertz GP, Fros JJ, Abma-Henkens MHC, Geertsema C, Vogels CBF, Koopmans MPG, Reusken CBEM, Hall-Mendelin S, Hall RA, van Oers MM, Koenraadt CJM, Pijlman GP. The invasive Asian bush mosquito Aedes japonicus found in the Netherlands can experimentally transmit Zika virus and Usutu virus. PLoS Negl Trop Dis 2020; 14:e0008217. [PMID: 32282830 PMCID: PMC7153878 DOI: 10.1371/journal.pntd.0008217] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Accepted: 03/13/2020] [Indexed: 02/03/2023] Open
Abstract
Background The Asian bush mosquito Aedes japonicus is invading Europe and was first discovered in Lelystad, the Netherlands in 2013, where it has established a permanent population. In this study, we investigated the vector competence of Ae. japonicus from the Netherlands for the emerging Zika virus (ZIKV) and zoonotic Usutu virus (USUV). ZIKV causes severe congenital microcephaly and Guillain-Barré syndrome in humans. USUV is closely related to West Nile virus, has recently spread throughout Europe and is causing mass mortality of birds. USUV infection in humans can result in clinical manifestations ranging from mild disease to severe neurological impairments. Methodology/Principal findings In our study, field-collected Ae. japonicus females received an infectious blood meal with ZIKV or USUV by droplet feeding. After 14 days at 28°C, 3% of the ZIKV-blood fed mosquitoes and 13% of the USUV-blood fed mosquitoes showed virus-positive saliva, indicating that Ae. japonicus can transmit both viruses. To investigate the effect of the mosquito midgut barrier on virus transmission, female mosquitoes were intrathoracically injected with ZIKV or USUV. Of the injected mosquitoes, 96% (ZIKV) and 88% (USUV) showed virus-positive saliva after 14 days at 28°C. This indicates that ZIKV and USUV can efficiently replicate in Ae. japonicus but that a strong midgut barrier is normally restricting virus dissemination. Small RNA deep sequencing of orally infected mosquitoes confirmed active replication of ZIKV and USUV, as demonstrated by potent small interfering RNA responses against both viruses. Additionally, de novo small RNA assembly revealed the presence of a novel narnavirus in Ae. japonicus. Conclusions/Significance Given that Ae. japonicus can experimentally transmit arthropod-borne viruses (arboviruses) like ZIKV and USUV and is currently expanding its territories, we should consider this mosquito as a potential vector for arboviral diseases in Europe. Arthropod-borne viruses (arboviruses) cause a high disease burden in humans and animals. Zika virus (ZIKV) causes microcephaly and Guillain-Barré syndrome in humans, whereas Usutu virus (USUV) induces high mortality in birds and neurological disease in humans. The spread of arboviruses such as ZIKV and USUV is determined by the presence of mosquitoes that can transmit these viruses from one vertebrate host to the next. Here, we investigate the risk of transmission of ZIKV and USUV by the Asian bush mosquito Aedes japonicus. This mosquito is invading Europe and is currently present in the Netherlands. We found that field-collected Ae. japonicus mosquitoes can experimentally transmit ZIKV and USUV. Of the orally infected mosquitoes, 3% (ZIKV) and 13% (USUV) showed virus-positive saliva after 14 days at 28°C. We also found that ZIKV and USUV activated the antiviral RNA interference immune response of Ae. japonicus. Moreover, a strong barrier in the mosquito midgut restricted virus dissemination, since 96% (ZIKV) and 88% (USUV) of the mosquitoes injected with ZIKV or USUV showed virus-positive saliva. Additionally, we discovered a narnavirus in Ae. japonicus. Given that Ae. japonicus can transmit ZIKV and USUV, we should consider this mosquito as a potential vector for arboviral diseases in Europe.
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Affiliation(s)
- Sandra R. Abbo
- Laboratory of Virology, Wageningen University & Research, Wageningen, the Netherlands
| | - Tessa M. Visser
- Laboratory of Entomology, Wageningen University & Research, Wageningen, the Netherlands
| | - Haidong Wang
- Laboratory of Virology, Wageningen University & Research, Wageningen, the Netherlands
| | - Giel P. Göertz
- Laboratory of Virology, Wageningen University & Research, Wageningen, the Netherlands
| | - Jelke J. Fros
- Laboratory of Virology, Wageningen University & Research, Wageningen, the Netherlands
| | | | - Corinne Geertsema
- Laboratory of Virology, Wageningen University & Research, Wageningen, the Netherlands
| | - Chantal B. F. Vogels
- Laboratory of Entomology, Wageningen University & Research, Wageningen, the Netherlands
| | | | | | - Sonja Hall-Mendelin
- Public Health Virology, Forensic and Scientific Services, Department of Health, Coopers Plains, Australia
| | - Roy A. Hall
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, Australia
| | - Monique M. van Oers
- Laboratory of Virology, Wageningen University & Research, Wageningen, the Netherlands
| | | | - Gorben P. Pijlman
- Laboratory of Virology, Wageningen University & Research, Wageningen, the Netherlands
- * E-mail:
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24
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Araujo RV, Feitosa-Suntheimer F, Gold AS, Londono-Renteria B, Colpitts TM. One-step RT-qPCR assay for ZIKV RNA detection in Aedes aegypti samples: a protocol to study infection and gene expression during ZIKV infection. Parasit Vectors 2020; 13:128. [PMID: 32171303 PMCID: PMC7071672 DOI: 10.1186/s13071-020-4002-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Accepted: 02/29/2020] [Indexed: 12/22/2022] Open
Abstract
Background Zika virus (ZIKV) is transmitted to humans during the bite of an infected mosquito. In a scenario of globalization and climate change, the frequency of outbreaks has and will increase in areas with competent vectors, revealing a need for continuous improvement of ZIKV detection tools in vector populations. A simple, rapid and sensitive assay for viral detection is quantitative reverse transcription polymerase chain reaction (qRT-PCR), yet oligos optimized for ZIKV detection in mammalian cells and samples have repeatedly shown high background when used on mosquito ribonucleic acid (RNA). In this paper, we present a one-step qRT-PCR protocol that allows for the detection of ZIKV in mosquitoes and for the evaluation of gene expression from the same mosquito sample and RNA. This assay is a less expensive qRT-PCR approach than that most frequently used in the literature and has a much lower background, allowing confident detection. Methods Our new oligo design to detect ZIKV RNA included in silico analysis of both viral and mosquito (Ae. aegypti and Ae. albopictus) genomes, targeting sequences conserved between Asian and African ZIKV lineages, but not matching Aedes genomes. This assay will allow researchers to avoid nonspecific amplification in insect samples due to viral integration into the mosquito genome, a phenomenon known to happen in wild and colonized populations of mosquitoes. Standard curves constructed with in vitro transcribed ZIKV RNA were used to optimize the sensitivity, efficiency and reproducibility of the assay. Results Finally, the assay was used with success to detect both ZIKV RNA in infected mosquitoes and to detect expression of the Defensin A gene, an antimicrobial peptide (AMP) involved in Aedes aegypti immune response to virus infection. Conclusions The experimental approach to detect ZIKV RNA in Aedes aegypti presented here has demonstrated to be specific, sensitive and reliable, and additionally it allows for the analysis of mosquito gene expression during ZIKV infection.![]()
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Affiliation(s)
- Ricardo Vieira Araujo
- Department of Microbiology, Boston University School of Medicine, Boston, MA, USA.,National Emerging Infectious Diseases Laboratories, Boston University, Boston, MA, USA.,Climate Division, Ministry of Science, Technology, Innovations and Communications, Brasilia, DF, Brazil
| | - Fabiana Feitosa-Suntheimer
- Department of Microbiology, Boston University School of Medicine, Boston, MA, USA.,National Emerging Infectious Diseases Laboratories, Boston University, Boston, MA, USA
| | - Alexander S Gold
- Department of Microbiology, Boston University School of Medicine, Boston, MA, USA.,National Emerging Infectious Diseases Laboratories, Boston University, Boston, MA, USA
| | | | - Tonya M Colpitts
- Department of Microbiology, Boston University School of Medicine, Boston, MA, USA. .,National Emerging Infectious Diseases Laboratories, Boston University, Boston, MA, USA.
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25
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Nagy O, Nagy A, Tóth S, Pályi B, Vargáné Koroknai A, Takács M. Imported Zika virus infections in Hungary between 2016 and 2018. Acta Microbiol Immunol Hung 2019; 66:423-442. [PMID: 31658836 DOI: 10.1556/030.66.2019.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Zika virus is a mosquito-borne flavivirus with significant public health concern due to its association with neurological symptoms and intrauterine malformations. Although it is endemic in tropical and subtropical areas, sexual transmission raises the possibility of autochthonous spreading elsewhere. We describe the first laboratory diagnosed imported Zika-infections of Hungary, to highlight the challenges of microbiological identification of the pathogen, caused by serological cross-reactivity and short viremia. Serological examination was carried out using indirect immunofluorescent assay and enzyme-linked immunosorbent assay. Plaque-reduction neutralization test was used for verification purposes. A wide range of clinical specimens: serum, whole-blood, urine, saliva, and semen were analyzed by molecular methods, and sequencing was applied in case of PCR positive results to identify the virus strain. Zika-infected patients with previous vaccination against flaviviruses or possible flavivirus infection in the past showed high serological cross-reactivity, and even cross-neutralizing antibodies were observed. Zika virus RNA could be detected in urine specimen in case of two patients, and in EDTA-anticoagulated whole-blood sample of one patient. The detected strains belong to the Asian lineage of the virus. We presume that serological investigation of imported Zika virus could be altered by infections, vaccination of endemic flaviviruses in Hungary and vice versa.
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Affiliation(s)
- Orsolya Nagy
- 1 Department of Virology, National Public Health Center, Budapest, Hungary
- 2 Institute of Medical Microbiology, Semmelweis University, Budapest, Hungary
| | - Anna Nagy
- 1 Department of Virology, National Public Health Center, Budapest, Hungary
| | - Szilvia Tóth
- 3 Central Hospital of Southern Pest – National Institute of Hematology and Infectious Diseases, Budapest, Hungary
| | - Bernadett Pályi
- 1 Department of Virology, National Public Health Center, Budapest, Hungary
| | | | - Mária Takács
- 1 Department of Virology, National Public Health Center, Budapest, Hungary
- 2 Institute of Medical Microbiology, Semmelweis University, Budapest, Hungary
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26
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Martinet JP, Ferté H, Failloux AB, Schaffner F, Depaquit J. Mosquitoes of North-Western Europe as Potential Vectors of Arboviruses: A Review. Viruses 2019; 11:v11111059. [PMID: 31739553 PMCID: PMC6893686 DOI: 10.3390/v11111059] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 11/06/2019] [Accepted: 11/08/2019] [Indexed: 12/22/2022] Open
Abstract
Background: The intensification of trade and travel is linked to the growing number of imported cases of dengue, chikungunya or Zika viruses into continental Europe and to the expansion of invasive mosquito species such as Aedes albopictus and Aedes japonicus. Local outbreaks have already occurred in several European countries. Very little information exists on the vector competence of native mosquitoes for arboviruses. As such, the vectorial status of the nine mosquito species largely established in North-Western Europe (Aedes cinereus and Aedes geminus, Aedes cantans, Aedes punctor, Aedes rusticus, Anopheles claviger s.s., Anopheles plumbeus, Coquillettidia richiardii, Culex pipiens s.l., and Culiseta annulata) remains mostly unknown. Objectives: To review the vector competence of both invasive and native mosquito populations found in North-Western Europe (i.e., France, Belgium, Germany, United Kingdom, Ireland, The Netherlands, Luxembourg and Switzerland) for dengue, chikungunya, Zika, West Nile and Usutu viruses. Methods: A bibliographical search with research strings addressing mosquito vector competence for considered countries was performed. Results: Out of 6357 results, 119 references were related to the vector competence of mosquitoes in Western Europe. Eight species appear to be competent for at least one virus. Conclusions: Aedes albopictus is responsible for the current outbreaks. The spread of Aedes albopictus and Aedes japonicus increases the risk of the autochthonous transmission of these viruses. Although native species could contribute to their transmission, more studies are still needed to assess that risk.
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Affiliation(s)
- Jean-Philippe Martinet
- Faculté de Pharmacie, Université de Reims Champagne-Ardenne, ANSES, SFR Cap Santé, EA7510 ESCAPE–USC VECPAR, 51 rue Cognacq-Jay, 51096 Reims CEDEX, France; (H.F.); (J.D.)
- Arbovirus et Insectes Vecteurs, Département de Virologie, Institut Pasteur, 25-28 rue du docteur Roux, 75015 Paris, France;
- Correspondence:
| | - Hubert Ferté
- Faculté de Pharmacie, Université de Reims Champagne-Ardenne, ANSES, SFR Cap Santé, EA7510 ESCAPE–USC VECPAR, 51 rue Cognacq-Jay, 51096 Reims CEDEX, France; (H.F.); (J.D.)
- Laboratoire de Parasitologie, Hôpital Maison-Blanche, CHU de Reims, 45 rue Cognacq-Jay, 51100 Reims, France
| | - Anna-Bella Failloux
- Arbovirus et Insectes Vecteurs, Département de Virologie, Institut Pasteur, 25-28 rue du docteur Roux, 75015 Paris, France;
| | - Francis Schaffner
- National Centre for Vector Entomology, Institute of Parasitology, Vetsuisse Faculty, University of Zurich, Rämistrasse 71, 8006 Zürich, Switzerland;
- Francis Schaffner Consultancy, Lörracherstrasse 50, 4125 Riehen (Basel-Land), Switzerland
| | - Jérôme Depaquit
- Faculté de Pharmacie, Université de Reims Champagne-Ardenne, ANSES, SFR Cap Santé, EA7510 ESCAPE–USC VECPAR, 51 rue Cognacq-Jay, 51096 Reims CEDEX, France; (H.F.); (J.D.)
- Laboratoire de Parasitologie, Hôpital Maison-Blanche, CHU de Reims, 45 rue Cognacq-Jay, 51100 Reims, France
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27
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Peach DAH, Almond M, Pol JC. Modeled distributions of Aedes japonicus japonicus and Aedes togoi (Diptera: Culicidae) in the United States, Canada, and northern Latin America. JOURNAL OF VECTOR ECOLOGY : JOURNAL OF THE SOCIETY FOR VECTOR ECOLOGY 2019; 44:119-129. [PMID: 31124225 DOI: 10.1111/jvec.12336] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Accepted: 02/26/2019] [Indexed: 06/09/2023]
Abstract
The Asian bush mosquito, Aedes japonicus japonicus, and the coastal rock pool mosquito, Aedes togoi, are potential disease vectors present in both East Asia and North America. While their ranges are fairly well-documented in Asia, this is not the case for North America. We used maximum entropy modeling to estimate the potential distributions of Ae. togoi and Ae. j. japonicus in the United States, Canada, and northern Latin America under contemporary and future climatic conditions. Our results suggest suitable habitat that is not known to be occupied for Ae. j. japonicus in Atlantic and western Canada, Alaska, the western, midwestern, southern, and northeastern United States, and Latin America, and for Ae. togoi along the Pacific coast of North America and the Hawaiian Islands. Such areas are at risk of future invasion or may already contain undetected populations of these species. Our findings further predict that the limits of suitable habitat for each species will expand northward under future climatic conditions.
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Affiliation(s)
- Daniel A H Peach
- Department of Biological Sciences, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada
| | - Max Almond
- Department of Biological Sciences, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada
| | - Joshua C Pol
- Department of Biological Sciences, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada
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28
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Culex torrentium: A Potent Vector for the Transmission of West Nile Virus in Central Europe. Viruses 2019; 11:v11060492. [PMID: 31146418 PMCID: PMC6630772 DOI: 10.3390/v11060492] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 05/23/2019] [Accepted: 05/24/2019] [Indexed: 12/17/2022] Open
Abstract
The continuous circulation of West Nile virus (WNV) in Central, South and East Europe and its recent detection in several dead birds and two horses in Germany highlights the need for information on WNV vector competence of mosquitoes from Central Europe. Therefore, three common Culex species (Culex pipiens biotype pipiens, Culex pipiens biotype molestus and Culex torrentium) from Germany were orally infected with WNV and kept at 18 °C, 21 °C, 24 °C or 27 °C for 14 or 21 days post infection (dpi). Thereafter viable WNV was present in the saliva in all tested taxa, but only at incubation temperatures of 24 °C or 27 °C and predominantly at the extended incubation period of 21 dpi. Highest transmission efficiency rates of 17 % (24 °C) and 24% (27 °C) were found for Cx. torrentium. Culex p. pipiens and Cx. p. molestus showed low transmission efficiencies with a maximum of only 3%. Consequently, temperatures above 21 °C support transmission of WNV, which matches the predominant distribution of human WNV cases around the Mediterranean Sea and in South-East Europe. Culex torrentium has been identified as a potent vector for WNV in Central and Northern Europe, which highlights the need for surveillance of mosquito-borne viruses north of the Alps.
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Hernández-Triana LM, Barrero E, Delacour-Estrella S, Ruiz-Arrondo I, Lucientes J, Fernández de Marco MDM, Thorne L, Lumley S, Johnson N, Mansfield KL, Fooks AR. Evidence for infection but not transmission of Zika virus by Aedes albopictus (Diptera: Culicidae) from Spain. Parasit Vectors 2019; 12:204. [PMID: 31053164 PMCID: PMC6500059 DOI: 10.1186/s13071-019-3467-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Accepted: 04/29/2019] [Indexed: 11/28/2022] Open
Abstract
Background A number of mosquito-borne viruses such as dengue virus (DENV), Usutu virus (USUV), West Nile virus (WNV) are autochthonously transmitted in Europe and six invasive mosquito species have been detected in this temperate region. This has increased the risk for the emergence of further mosquito-borne diseases. However, there is a paucity of information on whether European populations of invasive mosquito species are competent to transmit arboviruses. In this study, the susceptibility of Aedes albopictus originating from Spain and a laboratory-adapted colony of Aedes aegypti, was assessed for infection with, and transmission of Zika virus (ZIKV). Vertical transmission in both species was also assessed. Methods Aedes albopictus colonised from eggs collected in Spain and an existing colony of Ae. aegypti were fed infectious blood meals containing ZIKV (Polynesian strain) at 1.6 × 107 PFU/ml. Blood-fed mosquitoes were separated and maintained at 20 °C or 25 °C. Legs, saliva and bodies were sampled from specimens at 7, 14 and 21 days post-infection (dpi) in order to determine infection, dissemination and transmission rates. All samples were analysed by real-time RT-PCR using primers targeting the ZIKV NS1 gene. Results At 14 dpi and 21 dpi, ZIKV RNA was detected in the bodies of both species at both temperatures. However, live virus only was detected in the saliva of Ae. aegypti at 25 °C with a transmission rate of 44%. No evidence for virus expectoration was obtained for Ae. albopictus under any condition. Notably, ZIKV RNA was not detectable in the saliva of Ae. aegypti at 20 °C after 21 days. No vertical transmission of ZIKV was detected in this study. Conclusions Experimental infection of Ae. albopictus colonized from Spain with ZIKV did not result in expectoration of virus in saliva in contrast to results for Ae. aegypti. No evidence of vertical transmission of virus was observed in this study. This suggests that this strain of Ae. albopictus is not competent for ZIKV transmission under the conditions tested.
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Affiliation(s)
- Luis M Hernández-Triana
- Wildlife Zoonoses and Vector-borne Diseases Research Group, Animal and Plant Health Agency, Woodham Lane, New Haw, Addlestone, Surrey, KT15 3NB, UK.
| | - Elsa Barrero
- Wildlife Zoonoses and Vector-borne Diseases Research Group, Animal and Plant Health Agency, Woodham Lane, New Haw, Addlestone, Surrey, KT15 3NB, UK
| | - Sarah Delacour-Estrella
- Department of Animal Pathology, Faculty of Veterinary Medicine, University of Zaragoza, Zaragoza, Spain
| | - Ignacio Ruiz-Arrondo
- Center for Rickettsiosis and Vector-Borne Diseases Group, Hospital Universitario San Pedro-CIBIR, Logroño, Spain
| | - Javier Lucientes
- Department of Animal Pathology, Faculty of Veterinary Medicine, University of Zaragoza, Zaragoza, Spain
| | - Maria Del Mar Fernández de Marco
- Wildlife Zoonoses and Vector-borne Diseases Research Group, Animal and Plant Health Agency, Woodham Lane, New Haw, Addlestone, Surrey, KT15 3NB, UK
| | - Leigh Thorne
- Wildlife Zoonoses and Vector-borne Diseases Research Group, Animal and Plant Health Agency, Woodham Lane, New Haw, Addlestone, Surrey, KT15 3NB, UK
| | - Sarah Lumley
- Public Health England, Porton Down, Salisbury, SP4 0JG, UK
| | - Nicholas Johnson
- Wildlife Zoonoses and Vector-borne Diseases Research Group, Animal and Plant Health Agency, Woodham Lane, New Haw, Addlestone, Surrey, KT15 3NB, UK.,Faculty of Health and Medicine, University of Surrey, Guildford, Surrey, GU27XH, UK
| | - Karen L Mansfield
- Wildlife Zoonoses and Vector-borne Diseases Research Group, Animal and Plant Health Agency, Woodham Lane, New Haw, Addlestone, Surrey, KT15 3NB, UK
| | - Anthony R Fooks
- Wildlife Zoonoses and Vector-borne Diseases Research Group, Animal and Plant Health Agency, Woodham Lane, New Haw, Addlestone, Surrey, KT15 3NB, UK.,Department of Clinical Infection, Microbiology and Immunology, Institute of Infection and Global Health, University of Liverpool, Liverpool, UK
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Kerkow A, Wieland R, Koban MB, Hölker F, Jeschke JM, Werner D, Kampen H. What makes the Asian bush mosquito Aedes japonicus japonicus feel comfortable in Germany? A fuzzy modelling approach. Parasit Vectors 2019; 12:106. [PMID: 30871595 PMCID: PMC6417263 DOI: 10.1186/s13071-019-3368-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Accepted: 02/05/2019] [Indexed: 11/18/2022] Open
Abstract
Background The Asian bush mosquito Aedes japonicus japonicus is an invasive species native to East Asia and has become established in North America and Europe. On both continents, the species has spread over wide areas. Since it is a potential vector of human and livestock pathogens, distribution and dissemination maps are urgently needed to implement targeted surveillance and control in case of disease outbreaks. Previous distribution models for Europe and Germany in particular focused on climate data. Until now, effects of other environmental variables such as land use and wind remained unconsidered. Results In order to better explain the distribution pattern of Ae. j. japonicus in Germany at a regional level, we have developed a nested approach that allows for the combination of data derived from (i) a climate model based on a machine-learning approach; (ii) a landscape model developed by means of ecological expert knowledge; and (iii) wind speed data. The approach is based on the fuzzy modelling technique that enables to precisely define the interactions between the three factors and additionally considers uncertainties with regard to the acceptance of certain environmental conditions. The model combines different spatial resolutions of data for Germany and achieves a much higher degree of accuracy than previous published distribution models. Our results reveal that a well-suited landscape structure can even facilitate the occurrence of Ae. j. japonicus in a climatically unsuitable region. Vice versa, unsuitable land use types such as agricultural landscapes and coniferous forests reduce the occurrence probability in climatically suitable regions. Conclusions The approach has significantly improved existing distribution models of Ae. j. japonicus for the area of Germany. We generated distribution maps with a resolution of 100 × 100 m that can serve as a basis for the design of control measures. All model input data and scripts are open source and freely available, so that the model can easily be applied to other countries or, more generally, to other species.
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Affiliation(s)
- Antje Kerkow
- Leibniz Centre for Agricultural Landscape Research (ZALF), Eberswalder Str. 84, 15374, Müncheberg, Germany. .,Department of Biology, Chemistry, Pharmacy, Institute of Biology, Freie Universität Berlin, Königin-Luise-Str. 1-3, 14195, Berlin, Germany.
| | - Ralf Wieland
- Leibniz Centre for Agricultural Landscape Research (ZALF), Eberswalder Str. 84, 15374, Müncheberg, Germany
| | - Marcel B Koban
- Leibniz Centre for Agricultural Landscape Research (ZALF), Eberswalder Str. 84, 15374, Müncheberg, Germany
| | - Franz Hölker
- Department of Biology, Chemistry, Pharmacy, Institute of Biology, Freie Universität Berlin, Königin-Luise-Str. 1-3, 14195, Berlin, Germany.,Leibniz-Institute of Freshwater Ecology and Inland Fisheries (IGB), Müggelseedamm 310, 12587, Berlin, Germany
| | - Jonathan M Jeschke
- Department of Biology, Chemistry, Pharmacy, Institute of Biology, Freie Universität Berlin, Königin-Luise-Str. 1-3, 14195, Berlin, Germany.,Leibniz-Institute of Freshwater Ecology and Inland Fisheries (IGB), Müggelseedamm 310, 12587, Berlin, Germany.,Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Altensteinstr. 34, 14195, Berlin, Germany
| | - Doreen Werner
- Leibniz Centre for Agricultural Landscape Research (ZALF), Eberswalder Str. 84, 15374, Müncheberg, Germany
| | - Helge Kampen
- Friedrich-Loeffler-Institut (FLI), Federal Research Institute for Animal Health, Südufer 10, 17493, Greifswald, Insel Riems, Germany
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