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Taheri S, González MA, Ruiz-López MJ, Magallanes S, Delacour-Estrella S, Lucientes J, Bueno-Marí R, Martínez-de la Puente J, Bravo-Barriga D, Frontera E, Polina A, Martinez-Barciela Y, Pereira JM, Garrido J, Aranda C, Marzal A, Ruiz-Arrondo I, Oteo JA, Ferraguti M, Gutíerrez-López R, Estrada R, Miranda MÁ, Barceló C, Morchón R, Montalvo T, Gangoso L, Goiri F, García-Pérez AL, Ruiz S, Fernandez-Martinez B, Gómez-Barroso D, Figuerola J. Modelling the spatial risk of malaria through probability distribution of Anopheles maculipennis s.l. and imported cases. Emerg Microbes Infect 2024; 13:2343911. [PMID: 38618930 PMCID: PMC11073426 DOI: 10.1080/22221751.2024.2343911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 04/11/2024] [Indexed: 04/16/2024]
Abstract
Malaria remains one of the most important infectious diseases globally due to its high incidence and mortality rates. The influx of infected cases from endemic to non-endemic malaria regions like Europe has resulted in a public health concern over sporadic local outbreaks. This is facilitated by the continued presence of competent Anopheles vectors in non-endemic countries.We modelled the potential distribution of the main malaria vector across Spain using the ensemble of eight modelling techniques based on environmental parameters and the Anopheles maculipennis s.l. presence/absence data collected from 2000 to 2020. We then combined this map with the number of imported malaria cases in each municipality to detect the geographic hot spots with a higher risk of local malaria transmission.The malaria vector occurred preferentially in irrigated lands characterized by warm climate conditions and moderate annual precipitation. Some areas surrounding irrigated lands in northern Spain (e.g. Zaragoza, Logroño), mainland areas (e.g. Madrid, Toledo) and in the South (e.g. Huelva), presented a significant likelihood of A. maculipennis s.l. occurrence, with a large overlap with the presence of imported cases of malaria.While the risk of malaria re-emergence in Spain is low, it is not evenly distributed throughout the country. The four recorded local cases of mosquito-borne transmission occurred in areas with a high overlap of imported cases and mosquito presence. Integrating mosquito distribution with human incidence cases provides an effective tool for the quantification of large-scale geographic variation in transmission risk and pinpointing priority areas for targeted surveillance and prevention.
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Affiliation(s)
- Shirin Taheri
- Departamento de Biología de la Conservación y Cambio Global, Estación Biológica de Doñana (EBD), CSIC, Sevilla, Spain
| | - Mikel Alexander González
- Departamento de Biología de la Conservación y Cambio Global, Estación Biológica de Doñana (EBD), CSIC, Sevilla, Spain
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
| | - María José Ruiz-López
- Departamento de Biología de la Conservación y Cambio Global, Estación Biológica de Doñana (EBD), CSIC, Sevilla, Spain
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
| | - Sergio Magallanes
- Departamento de Biología de la Conservación y Cambio Global, Estación Biológica de Doñana (EBD), CSIC, Sevilla, Spain
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
| | - Sarah Delacour-Estrella
- The Agrifood Institute of Aragón (IA2), Faculty of Veterinary Medicine, University of Zaragoza, Zaragoza, Spain
| | - Javier Lucientes
- The Agrifood Institute of Aragón (IA2), Faculty of Veterinary Medicine, University of Zaragoza, Zaragoza, Spain
| | - Rubén Bueno-Marí
- Center of Excellence in Vector Control, Rentokil Initial, València, Spain
- Grupo de Investigación Parásitos y Salud, Universitat de València, València, Spain
| | - Josué Martínez-de la Puente
- Departamento de Biología de la Conservación y Cambio Global, Estación Biológica de Doñana (EBD), CSIC, Sevilla, Spain
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
- Departamento de Parasitología, Universidad de Granada, Granada, Spain
| | - Daniel Bravo-Barriga
- Departamento de Salud Animal, Grupo de Investigación en Salud Animal y Zoonosis (GISAZ), Facultad de Veterinaria, Universidad de Córdoba, Córdoba, Spain
| | - Eva Frontera
- Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad de Extremadura (UEx), Cáceres, Spain
| | - Alejandro Polina
- Departamento de Ecoloxía e Bioloxía Animal, Universidade de Vigo, Pontevedra, Spain
| | | | - José Manuel Pereira
- Departamento de Zooloxía, Xenética e Antropoloxía Física, Universidade de Santiago de Compostela, A Coruña, Spain
| | - Josefina Garrido
- Departamento de Ecoloxía e Bioloxía Animal, Universidade de Vigo, Pontevedra, Spain
| | - Carles Aranda
- Servei de Control de Mosquits del Baix Llobregat, Sant Feliu del Llobregat, Barcelona, Spain
- IRTA, Centre de Recerca en Sanitat Animal (CReSA, IRTA-UAB), Campus Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Alfonso Marzal
- Facultad de Biología, Universidad de Extremadura, Badajoz, Spain
- Grupo de Investigaciones en Fauna Silvestre, Universidad Nacional de San Martín, Tarapoto, Perú
| | - Ignacio Ruiz-Arrondo
- Centre of Rickettsiosis and Arthropod-Borne Diseases, Hospital Universitario San Pedro-CIBIR, La Rioja, Logroño, Spain
| | - José Antonio Oteo
- Centre of Rickettsiosis and Arthropod-Borne Diseases, Hospital Universitario San Pedro-CIBIR, La Rioja, Logroño, Spain
| | - Martina Ferraguti
- Departamento de Biología de la Conservación y Cambio Global, Estación Biológica de Doñana (EBD), CSIC, Sevilla, Spain
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
| | - Rafael Gutíerrez-López
- Centro Nacional de Microbiología (CNM-ISCIII), Madrid, Spain
- CIBER de Enfermedades Infecciosas (CIBERINFEC), Madrid, Spain
| | - Rosa Estrada
- The Agrifood Institute of Aragón (IA2), Faculty of Veterinary Medicine, University of Zaragoza, Zaragoza, Spain
| | - Miguel Ángel Miranda
- Universitat de les Illes Balears (UIB), Zoología Aplicada y de la Conservación, Palma, Spain
| | - Carlos Barceló
- Universitat de les Illes Balears (UIB), Zoología Aplicada y de la Conservación, Palma, Spain
| | - Rodrigo Morchón
- Zoonotic Diseases and One Health Group, Faculty of Pharmacy, Universidad de Salamanca, Salamanca, Spain
| | - Tomas Montalvo
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
- Agencia de Salut Publica de Barcelona, Barcelona, Spain
| | | | - Fátima Goiri
- NEIKER-Instituto Vasco de Investigación y Desarrollo Agrario, Derio, Spain
| | | | - Santiago Ruiz
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
- Servicio de Control de Mosquitos de la Diputación de Huelva, Huelva, Spain
| | - Beatriz Fernandez-Martinez
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
- Centro Nacional de Epidemiologia (CNE-ISCIII), Madrid, Spain
| | - Diana Gómez-Barroso
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
- Centro Nacional de Epidemiologia (CNE-ISCIII), Madrid, Spain
| | - Jordi Figuerola
- Departamento de Biología de la Conservación y Cambio Global, Estación Biológica de Doñana (EBD), CSIC, Sevilla, Spain
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
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2
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Jawień P, Pfitzner WP, Schaffner F, Kiewra D. Mosquitoes (Diptera: Culicidae) of Poland: An Update of Species Diversity and Current Challenges. INSECTS 2024; 15:353. [PMID: 38786909 PMCID: PMC11122502 DOI: 10.3390/insects15050353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 05/08/2024] [Accepted: 05/10/2024] [Indexed: 05/25/2024]
Abstract
This article presents the current state of knowledge of mosquito species (Diptera: Culicidae) occurring in Poland. In comparison to the most recently published checklists (1999 and 2007), which listed 47 mosquito species, four species (Aedes japonicus, Anopheles daciae, Anopheles hyrcanus, and Anopheles petragnani) are added to the Polish fauna. Our new checklist of Polish mosquito fauna includes 51 species of mosquitoes from five genera: Aedes (30), Anopheles (8), Coquillettidia (1), Culiseta (7), and Culex (5). Aspects of the ecology and biology of the Polish mosquito fauna, with particular emphasis on newly recorded species, are discussed.
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Affiliation(s)
- Piotr Jawień
- Department of Microbial Ecology and Acaroentomology, University of Wroclaw, Przybyszewskiego Str. 63, 51-148 Wrocław, Poland;
| | | | - Francis Schaffner
- Francis Schaffner Consultancy, Lörracherstrasse 50, 4125 Riehen, Switzerland;
| | - Dorota Kiewra
- Department of Microbial Ecology and Acaroentomology, University of Wroclaw, Przybyszewskiego Str. 63, 51-148 Wrocław, Poland;
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Raele DA, Severini F, Toma L, Menegon M, Boccolini D, Tortorella G, Di Luca M, Cafiero MA. Anopheles sacharovi in Italy: first record of the historical malaria vector after over 50 years. Parasit Vectors 2024; 17:182. [PMID: 38600589 PMCID: PMC11005165 DOI: 10.1186/s13071-024-06252-2] [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: 02/15/2024] [Accepted: 03/19/2024] [Indexed: 04/12/2024] Open
Abstract
BACKGROUND Anopheles sacharovi, a member of the Anopheles maculipennis complex, was a historical malaria vector in Italy, no longer found since the last report at the end of 1960s. In September 2022, within the Surveillance Project for the residual anophelism, a single specimen of An. maculipennis sensu lato collected in Lecce municipality (Apulia region) was molecularly identified as An. sacharovi. This record led to implement a targeted entomological survey in September 2023. METHODS Investigation was conducted in the areas around the first discovery, focusing on animal farms, riding stables and potential breeding sites. Adult and immature mosquitoes were collected, using active search or traps, in several natural and rural sites. Mosquitoes belonging to An. maculipennis complex were identified morphologically and molecularly by a home-made routine quantitative polymerase chain reaction (qPCR) assay, developed specifically for the rapid identification of An. labranchiae, and, when necessary, by amplification and sequencing of the ITS-2 molecular marker. RESULTS Out of the 11 sites investigated, 6 were positive for Anopheles presence. All 20 An. maculipennis s.l. (7 adults, 10 larvae and 3 pupae) collected in the areas were identified as An. sacharovi by ITS-2 sequencing. CONCLUSIONS The discovery of An. sacharovi, considered to have disappeared from Italy for over 50 years, has a strong health relevance and impact, highlighting an increase in the receptivity of the southern areas. As imported malaria cases in European countries are reported every year, the risk of Plasmodium introduction by gametocyte carriers among travellers from endemic countries should be taken into greater consideration. Our findings allow rethinking and building new models for the prediction and expansion of introduced malaria. Furthermore, to prevent the risk of reintroduction of the disease, the need to strengthen the surveillance of residual anophelism throughout the South should be considered.
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Affiliation(s)
- Donato Antonio Raele
- Istituto Zooprofilattico Sperimentale della Puglia e Della Basilicata, Via Manfredonia, 20, 71121, Foggia, Italia.
| | - Francesco Severini
- Dipartimento di Malattie Infettive, Reparto di Malattie Trasmesse da Vettori, Istituto Superiore di Sanità, Viale Regina Elena, 299, 00161, Rome, Italia
| | - Luciano Toma
- Dipartimento di Malattie Infettive, Reparto di Malattie Trasmesse da Vettori, Istituto Superiore di Sanità, Viale Regina Elena, 299, 00161, Rome, Italia
| | - Michela Menegon
- Dipartimento di Malattie Infettive, Reparto di Malattie Trasmesse da Vettori, Istituto Superiore di Sanità, Viale Regina Elena, 299, 00161, Rome, Italia
| | - Daniela Boccolini
- Dipartimento di Malattie Infettive, Reparto di Malattie Trasmesse da Vettori, Istituto Superiore di Sanità, Viale Regina Elena, 299, 00161, Rome, Italia
| | - Giovanni Tortorella
- Azienda Sanitaria Nazionale (ASL), Servizio Veterinario Sanità Animale, Viale Don Minzoni N. 8, 73100, Lecce, Italia
| | - Marco Di Luca
- Dipartimento di Malattie Infettive, Reparto di Malattie Trasmesse da Vettori, Istituto Superiore di Sanità, Viale Regina Elena, 299, 00161, Rome, Italia
| | - Maria Assunta Cafiero
- Istituto Zooprofilattico Sperimentale della Puglia e Della Basilicata, Via Manfredonia, 20, 71121, Foggia, Italia
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Goiri F, González MA, Cevidanes A, Barandika JF, García-Peréz AL. Mosquitoes in urban green spaces and cemeteries in northern Spain. Parasit Vectors 2024; 17:168. [PMID: 38566167 PMCID: PMC10986117 DOI: 10.1186/s13071-024-06263-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: 02/20/2024] [Accepted: 03/26/2024] [Indexed: 04/04/2024] Open
Abstract
BACKGROUND Mosquitoes inhabiting urban green spaces and cemeteries in Europe represent a crucial facet of public health concern and contribute to the ecological balance. As urbanization intensifies, these areas increasingly serve as vital habitats for various mosquito species, fostering breeding grounds and increasing the risk of disease transmission. METHODS A study was conducted in the three main cities (inland, coastal, and estuarine) of the Basque Country, northern Spain, to investigate the species composition, abundance, dynamic populations, larval habitats, and host preferences of mosquitoes in urban green spaces and cemeteries. CDC traps and dipping were used to collect mosquitoes for 2 years (2019-2020). RESULTS A total of 21 mosquito species were identified, with Culex pipiens s.l. being the most abundant and widespread. The three ecological forms of Cx. pipiens were found, and Cx. pipiens pipiens was the most common in both green areas and cemeteries. Morphological identification together with molecular tools identified 65 COI sequences with high homology. The highest species richness was found in the inland city, followed by the coastal city and the estuarine city. Mosquito abundance was significantly higher in green areas compared to cemeteries and in the coastal and estuarine cities compared to the inland city. The investigation of larval breeding sites highlighted the dominance of Cx. pipiens s.l., particularly in semi-artificial ponds, diverse water-holding containers (tyres and buckets) and drainage systems in green areas; in cemeteries, most of the larvae were found in flowerpots and funerary urns. Seasonal activity exhibited variable peaks in mosquito abundance in the different cities, with a notable increase in July or August. Additionally, blood meal analysis revealed that Cx. pipiens s.l. fed on several common urban avian species. CONCLUSIONS Studies on mosquitoes are essential to understand their role in disease transmission and to design targeted and sustainable management strategies to mitigate the associated risks.
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Affiliation(s)
- Fátima Goiri
- Animal Health Department, NEIKER-Basque Institute for Agricultural Research and Development, Basque Research and Technology Alliance (BRTA), Derio, Spain
| | - Mikel A González
- Animal Health Department, NEIKER-Basque Institute for Agricultural Research and Development, Basque Research and Technology Alliance (BRTA), Derio, Spain
- Doñana Biological Station, Spanish National Research Council (EBD-CSIC), Seville, Spain
- CIBER de Epidemiología y Salud Pública (CIBER ESP), Madrid, Spain
| | - Aitor Cevidanes
- Animal Health Department, NEIKER-Basque Institute for Agricultural Research and Development, Basque Research and Technology Alliance (BRTA), Derio, Spain
| | - Jesús F Barandika
- Animal Health Department, NEIKER-Basque Institute for Agricultural Research and Development, Basque Research and Technology Alliance (BRTA), Derio, Spain
| | - Ana L García-Peréz
- Animal Health Department, NEIKER-Basque Institute for Agricultural Research and Development, Basque Research and Technology Alliance (BRTA), Derio, Spain.
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Kessel J, Rosanas-Urgell A, Dingwerth T, Goetsch U, Haller J, Huits R, Kattenberg JH, Meinecke A, Monsieurs P, Sroka M, Witte T, Wolf T. Investigation of an airport-associated cluster of falciparum malaria in Frankfurt, Germany, 2022. Euro Surveill 2024; 29:2300298. [PMID: 38304950 PMCID: PMC10835754 DOI: 10.2807/1560-7917.es.2024.29.5.2300298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 09/19/2023] [Indexed: 02/03/2024] Open
Abstract
Airport malaria is uncommon but increasing in Europe and often difficult to diagnose. We describe the clinical, epidemiological and environmental investigations of a cluster of airport malaria cases and measures taken in response. Three Frankfurt International Airport employees without travel histories to malaria-endemic areas were diagnosed with Plasmodium falciparum malaria in Germany in 2022. Two cases were diagnosed within 1 week, and the third one after 10 weeks. Two cases had severe disease, all three recovered fully. The cases worked in separate areas and no specific location for the transmissions could be identified. No additional cases were detected among airport employees. In June and July, direct flights from Equatorial Guinea, Nigeria and Angola and one parcel originating in Ghana arrived at Frankfurt airport. No vector-competent mosquitoes could be trapped to identify the source of the outbreak. Whole genome sequencing of P. falciparum genomes showed a high genetic relatedness between samples of the three cases and suggested the geographical origin closest to Ghana. A diagnosis of airport malaria should prompt appropriate and comprehensive outbreak investigations to identify the source and to prevent severe forms of falciparum malaria.
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Affiliation(s)
- Johanna Kessel
- Goethe University, University Hospital Frankfurt, Department of Infectious Diseases, Frankfurt, Germany
| | - Anna Rosanas-Urgell
- Unit of Malariology, Department of Biomedical Sciences, Institute of Tropical Medicine, Antwerp, Belgium
| | - Tobias Dingwerth
- Medical Center Frankfurt, Medical Services & Health Management Lufthansa Group, Frankfurt, Germany
| | - Udo Goetsch
- Municipal Health Protection Authority, Frankfurt, Germany
| | - Jonas Haller
- Goethe University, Department of Integrative parasitology and animal physiology, Frankfurt, Germany
- Municipal Health Protection Authority, Frankfurt, Germany
| | - Ralph Huits
- Department of Infectious Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Negrar di Valpolicella, Verona, Italy
| | - Johanna H Kattenberg
- Unit of Malariology, Department of Biomedical Sciences, Institute of Tropical Medicine, Antwerp, Belgium
| | - Anna Meinecke
- Hannover Medical School, Department of Rheumatology and Immunology, Hannover, Germany
| | - Pieter Monsieurs
- Unit of Malariology, Department of Biomedical Sciences, Institute of Tropical Medicine, Antwerp, Belgium
| | | | - Torsten Witte
- Hannover Medical School, Department of Rheumatology and Immunology, Hannover, Germany
| | - Timo Wolf
- Goethe University, University Hospital Frankfurt, Department of Infectious Diseases, Frankfurt, Germany
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Hadebe MT, Malgwi SA, Okpeku M. Revolutionizing Malaria Vector Control: The Importance of Accurate Species Identification through Enhanced Molecular Capacity. Microorganisms 2023; 12:82. [PMID: 38257909 PMCID: PMC10818655 DOI: 10.3390/microorganisms12010082] [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: 11/12/2023] [Revised: 12/08/2023] [Accepted: 12/20/2023] [Indexed: 01/24/2024] Open
Abstract
Many factors, such as the resistance to pesticides and a lack of knowledge of the morphology and molecular structure of malaria vectors, have made it more challenging to eradicate malaria in numerous malaria-endemic areas of the globe. The primary goal of this review is to discuss malaria vector control methods and the significance of identifying species in vector control initiatives. This was accomplished by reviewing methods of molecular identification of malaria vectors and genetic marker classification in relation to their use for species identification. Due to its specificity and consistency, molecular identification is preferred over morphological identification of malaria vectors. Enhanced molecular capacity for species identification will improve mosquito characterization, leading to accurate control strategies/treatment targeting specific mosquito species, and thus will contribute to malaria eradication. It is crucial for disease epidemiology and surveillance to accurately identify the Plasmodium spp. that are causing malaria in patients. The capacity for disease surveillance will be significantly increased by the development of more accurate, precise, automated, and high-throughput diagnostic techniques. In conclusion, although morphological identification is quick and achievable at a reduced cost, molecular identification is preferred for specificity and sensitivity. To achieve the targeted malaria elimination goal, proper identification of vectors using accurate techniques for effective control measures should be prioritized.
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Affiliation(s)
| | | | - Moses Okpeku
- Discipline of Genetics, School of Life Sciences, University of KwaZulu-Natal, Westville, Durban 4000, South Africa
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Lühken R, Becker N, Dyczko D, Sauer FG, Kliemke K, Schmidt-Chanasit J, Rydzanicz K. First record of Anopheles (Anopheles) hyrcanus (Pallas 1771) (Diptera: Culicidae) in Poland. Parasit Vectors 2023; 16:345. [PMID: 37794496 PMCID: PMC10552365 DOI: 10.1186/s13071-023-05974-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: 06/19/2023] [Accepted: 09/20/2023] [Indexed: 10/06/2023] Open
Abstract
The spatial distribution of mosquito species in the course of globalization and climate warming is highly dynamic. Different studies have demonstrated the spread and establishment of thermophilic mosquito species, potentially increasing the prevalence of 'nuisance' mosquitoes and the local transmission of pathogens. Here we report the first recorded sampling of Anopheles hyrcanus in Wrocław, southwest Poland. This is the most northern detection of this species to date in Europe. Future spread and population development of this potential vector of malaria parasites, viruses or zoonotic helminths, such as Dirofilaria spp., must be monitored carefully. Potential factors underlying the spread of this species are discussed.
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Affiliation(s)
- Renke Lühken
- Bernhard-Nocht-Institute for Tropical Medicine, Bernhard-Nocht-Str. 74, Hamburg, Germany
| | - Norbert Becker
- Faculty of Biosciences, University of Heidelberg, Im Neuenheimer Feld 230, 69120 Heidelberg, Germany
- Institute of Dipterology (IfD)/KABS, Georg-Peter-Süß-Str. 3, 67346 Speyer, Germany
| | - Dagmara Dyczko
- Department of Microbial Ecology and Environmental Protection, University of Wroclaw, Przybyszewskiego Str. 63/77, 51-148 Wrocław, Poland
| | - Felix G. Sauer
- Bernhard-Nocht-Institute for Tropical Medicine, Bernhard-Nocht-Str. 74, Hamburg, Germany
| | - Konstantin Kliemke
- Bernhard-Nocht-Institute for Tropical Medicine, Bernhard-Nocht-Str. 74, Hamburg, Germany
| | - Jonas Schmidt-Chanasit
- Bernhard-Nocht-Institute for Tropical Medicine, Bernhard-Nocht-Str. 74, Hamburg, Germany
- Faculty of Mathematics, Informatics and Natural Sciences, Universität Hamburg, Hamburg, Germany
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Suresh S, Meraj G, Kumar P, Singh D, Khan ID, Gupta A, Yadav TK, Kouser A, Avtar R. Interactions of urbanisation, climate variability, and infectious disease dynamics: insights from the Coimbatore district of Tamil Nadu. ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 195:1226. [PMID: 37725204 DOI: 10.1007/s10661-023-11856-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 09/07/2023] [Indexed: 09/21/2023]
Abstract
Climate change and shifts in land use/land cover (LULC) are critical factors affecting the environmental, societal, and health landscapes, notably influencing the spread of infectious diseases. This study delves into the intricate relationships between climate change, LULC alterations, and the prevalence of vector-borne and waterborne diseases in Coimbatore district, Tamil Nadu, India, between 1985 and 2015. The research utilised Landsat-4, Landsat-5, and Landsat-8 data to generate LULC maps, applying the maximum likelihood algorithm to highlight significant transitions over the years. This study revealed that built-up areas have increased by 67%, primarily at the expense of agricultural land, which was reduced by 51%. Temperature and rainfall data were obtained from APHRODITE Water Resources, and with a statistical analysis of the time series data revealed an annual average temperature increase of 1.8 °C and a minor but statistically significant rainfall increase during the study period. Disease data was obtained from multiple national health programmes, revealing an increasing trend in dengue and diarrhoeal diseases over the study period. In particular, dengue cases surged, correlating strongly with the increase in built-up areas and temperature. This research is instrumental for policy decisions in public health, urban planning, and climate change mitigation. Amidst limited research on the interconnections among infectious diseases, climate change, and LULC changes in India, our study serves as a significant precursor for future management strategies in Coimbatore and analogous regions.
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Affiliation(s)
- Sudha Suresh
- Graduate School of Environmental Science, Hokkaido University, Sapporo, 060-0810, Japan
| | - Gowhar Meraj
- Department of Ecosystem Studies, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Tokyo, 113-8654, Japan
| | - Pankaj Kumar
- Institute for Global Environmental Strategies, Hayama, 240-0115, Japan
| | - Deepak Singh
- Research Institute for Humanity and Nature (RIHN), 457-4 MotoyamaKita-Ku, KamigamoKyoto, 603-8047, Japan
| | - Inam Danish Khan
- Department of Clinical Microbiology, Army Base Hospital, Delhi Cantonment, New Delhi, 110010, India
| | - Ankita Gupta
- Graduate School of Environmental Science, Hokkaido University, Sapporo, 060-0810, Japan
| | - Tarun Kumar Yadav
- Centre of Environmental Science, University of Allahabad, Prayagraj, Uttar Pradesh, 211002, India
| | - Asma Kouser
- Department of Economics, Bengaluru City University, Bengaluru, Karnataka, 560001, India
- Faculty of Environmental Earth Science, Hokkaido University, Sapporo, 060-0810, Japan
| | - Ram Avtar
- Graduate School of Environmental Science, Hokkaido University, Sapporo, 060-0810, Japan.
- Faculty of Environmental Earth Science, Hokkaido University, Sapporo, 060-0810, Japan.
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Van den Eynde C, Sohier C, Matthijs S, De Regge N. Belgian Anopheles plumbeus Mosquitoes Are Competent for Japanese Encephalitis Virus and Readily Feed on Pigs, Suggesting a High Vectorial Capacity. Microorganisms 2023; 11:1386. [PMID: 37374888 DOI: 10.3390/microorganisms11061386] [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: 04/19/2023] [Revised: 05/15/2023] [Accepted: 05/22/2023] [Indexed: 06/29/2023] Open
Abstract
Anopheles plumbeus, a day-active mosquito known to feed aggressively on humans, was reported as a nuisance species near an abandoned pigsty in Belgium. Since Japanese encephalitis virus (JEV) is an emerging zoonotic flavivirus which uses pigs as amplification hosts, we investigated (1) whether An. plumbeus would feed on pigs and (2) its vector competence for JEV, to investigate whether this species could be a potential vector. Three- to seven-day-old F0-generation adult mosquitoes, emerged from field-collected larvae, were fed on a JEV genotype 3 Nakayama strain spiked blood meal. Blood-fed mosquitoes were subsequently incubated for 14 days at two temperature conditions: a constant 25 °C and a 25/15 °C day/night temperature gradient. Our results show that An. plumbeus is a competent vector for JEV at the 25 °C condition and this with an infection rate of 34.1%, a dissemination rate of 67.7% and a transmission rate of 14.3%. The vector competence showed to be influenced by temperature, with a significantly lower dissemination rate (16.7%) and no transmission when implementing the temperature gradient. Moreover, we demonstrated that An. plumbeus readily feeds on pigs when the opportunity occurs. Therefore, our results suggest that Belgian An. plumbeus mosquitoes may play an important role in the transmission of JEV upon an introduction into our region if temperatures increase with climate change.
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Affiliation(s)
- Claudia Van den Eynde
- Exotic and Vector-Borne Diseases, Sciensano, Groeselenberg 99, 1180 Brussels, Belgium
| | - Charlotte Sohier
- Exotic and Vector-Borne Diseases, Sciensano, Groeselenberg 99, 1180 Brussels, Belgium
| | - Severine Matthijs
- Viral Re-Emerging Enzootic and Bee Diseases, Sciensano, Groeselenberg 99, 1180 Brussels, Belgium
| | - Nick De Regge
- Exotic and Vector-Borne Diseases, Sciensano, Groeselenberg 99, 1180 Brussels, Belgium
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Boualam MA, Heitzmann A, Mousset F, Aboudharam G, Drancourt M, Pradines B. Use of rapid diagnostic tests for the detection of ancient malaria infections in dental pulp from the sixth century in Versailles, France. Malar J 2023; 22:151. [PMID: 37161537 PMCID: PMC10169320 DOI: 10.1186/s12936-023-04582-7] [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: 12/21/2022] [Accepted: 05/03/2023] [Indexed: 05/11/2023] Open
Abstract
BACKGROUND Paleomicrobiological data have clarified that Plasmodium spp. was circulating in the past in southern European populations, which are now devoid of malaria. The aim of this study was to evaluate the efficacy of immunodetection and, more particularly, rapid diagnostic tests (RDT), in order to further assess Plasmodium infections in ancient northern European populations. METHODS A commercially available RDT, PALUTOP® + 4 OPTIMA, which is routinely used to detect malaria, was used to detect Plasmodium antigens from proteins recovered from ancient specimens extracted from 39 dental pulp samples. These samples were collected from 39 individuals who were buried in the sixth century, near the site of the current Palace of Versailles in France. Positive and negative controls were also used. Antigens detected were quantified using chemiluminescence imaging system analysis. RESULTS Plasmodium antigens were detected in 14/39 (35.9%) individuals, including Plasmodium vivax antigens in 11 individuals and Plasmodium falciparum antigens co-detected in two individuals, while Pan-Plasmodium antigens were detected in three individuals. Controls all yielded expected results. CONCLUSIONS The data reported here showed that RDTs are a suitable tool for detecting Plasmodium spp. antigens in ancient dental pulp samples, and demonstrated the existence of malaria in Versailles, France, in the sixth century. Plasmodium vivax, which is regarded as being responsible for an attenuated form of malaria and less deadly forms, was the most prevalent species. This illustrates, for the first time in ancient populations, co-infection with P. falciparum, bringing into question the climate-driven ecosystems prevailing at that time in the Versailles area.
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Affiliation(s)
- Mahmoud A Boualam
- IHU Méditerranée Infection, 19-21 Bd Jean Moulin, 13005, Marseille, France
- Aix-Marseille Univ, IRD, MEPHI, AP-HM, 19-21 Bd Jean Moulin, 13005, Marseille, France
| | - Annick Heitzmann
- Direction du Patrimoine et des Jardins, Château de Versailles, Place d'Armes, 78008, Versailles, France
| | - Florence Mousset
- Direction régionale des affaires culturelles d'Île-de-France, Service Régional de l'archéologie, 311 Rue Le Peletier, 75009, Paris, France
| | - Gérard Aboudharam
- IHU Méditerranée Infection, 19-21 Bd Jean Moulin, 13005, Marseille, France
- Aix-Marseille Univ, IRD, MEPHI, AP-HM, 19-21 Bd Jean Moulin, 13005, Marseille, France
- Ecole de Médecine Dentaire, Aix-Marseille Univ, Bd Jean Moulin, 13005, Marseille, France
| | - Michel Drancourt
- IHU Méditerranée Infection, 19-21 Bd Jean Moulin, 13005, Marseille, France
- Aix-Marseille Univ, IRD, MEPHI, AP-HM, 19-21 Bd Jean Moulin, 13005, Marseille, France
| | - Bruno Pradines
- IHU Méditerranée Infection, 19-21 Bd Jean Moulin, 13005, Marseille, France.
- Unité parasitologie et entomologie, Département microbiologie et maladies infectieuses, Institut de recherche biomédicale des armées, 19-21 Bd Jean Moulin, 13005, Marseille, France.
- Aix-Marseille Univ, IRD, SSA, AP-HM, VITROME, 19-21 Bd Jean Moulin, 13005, Marseille, France.
- Centre national de référence du paludisme, 19-21 Bd Jean Moulin, 13005, Marseille, France.
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11
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Yurchenko AA, Naumenko AN, Artemov GN, Karagodin DA, Hodge JM, Velichevskaya AI, Kokhanenko AA, Bondarenko SM, Abai MR, Kamali M, Gordeev MI, Moskaev AV, Caputo B, Aghayan SA, Baricheva EM, Stegniy VN, Sharakhova MV, Sharakhov IV. Phylogenomics revealed migration routes and adaptive radiation timing of Holarctic malaria mosquito species of the Maculipennis Group. BMC Biol 2023; 21:63. [PMID: 37032389 PMCID: PMC10084679 DOI: 10.1186/s12915-023-01538-w] [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: 08/10/2022] [Accepted: 02/08/2023] [Indexed: 04/11/2023] Open
Abstract
BACKGROUND Phylogenetic analyses of closely related species of mosquitoes are important for better understanding the evolution of traits contributing to transmission of vector-borne diseases. Six out of 41 dominant malaria vectors of the genus Anopheles in the world belong to the Maculipennis Group, which is subdivided into two Nearctic subgroups (Freeborni and Quadrimaculatus) and one Palearctic (Maculipennis) subgroup. Although previous studies considered the Nearctic subgroups as ancestral, details about their relationship with the Palearctic subgroup, and their migration times and routes from North America to Eurasia remain controversial. The Palearctic species An. beklemishevi is currently included in the Nearctic Quadrimaculatus subgroup adding to the uncertainties in mosquito systematics. RESULTS To reconstruct historic relationships in the Maculipennis Group, we conducted a phylogenomic analysis of 11 Palearctic and 2 Nearctic species based on sequences of 1271 orthologous genes. The analysis indicated that the Palearctic species An. beklemishevi clusters together with other Eurasian species and represents a basal lineage among them. Also, An. beklemishevi is related more closely to An. freeborni, which inhabits the Western United States, rather than to An. quadrimaculatus, a species from the Eastern United States. The time-calibrated tree suggests a migration of mosquitoes in the Maculipennis Group from North America to Eurasia about 20-25 million years ago through the Bering Land Bridge. A Hybridcheck analysis demonstrated highly significant signatures of introgression events between allopatric species An. labranchiae and An. beklemishevi. The analysis also identified ancestral introgression events between An. sacharovi and its Nearctic relative An. freeborni despite their current geographic isolation. The reconstructed phylogeny suggests that vector competence and the ability to enter complete diapause during winter evolved independently in different lineages of the Maculipennis Group. CONCLUSIONS Our phylogenomic analyses reveal migration routes and adaptive radiation timing of Holarctic malaria vectors and strongly support the inclusion of An. beklemishevi into the Maculipennis Subgroup. Detailed knowledge of the evolutionary history of the Maculipennis Subgroup provides a framework for examining the genomic changes related to ecological adaptation and susceptibility to human pathogens. These genomic variations may inform researchers about similar changes in the future providing insights into the patterns of disease transmission in Eurasia.
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Affiliation(s)
- Andrey A Yurchenko
- Department of Entomology, the Fralin Life Sciences Institute, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
- Kurchatov Genomics Center, the Federal Research Center, Institute of Cytology and Genetics, Novosibirsk, Russia
- Current Address: INSERM U981, Gustave Roussy Institute, Université Paris-Saclay, Villejuif, France
| | - Anastasia N Naumenko
- Department of Entomology, the Fralin Life Sciences Institute, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
| | - Gleb N Artemov
- Department of Genetics and Cell Biology and the Laboratory of Ecology, Genetics and Environmental Protection, Tomsk State University, Tomsk, Russia
| | - Dmitry A Karagodin
- Laboratory of Cell Differentiation Mechanisms, the Federal Research Center, Institute of Cytology and Genetics, Novosibirsk, Russia
| | - James M Hodge
- Department of Entomology, the Fralin Life Sciences Institute, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
| | - Alena I Velichevskaya
- Department of Genetics and Cell Biology and the Laboratory of Ecology, Genetics and Environmental Protection, Tomsk State University, Tomsk, Russia
| | - Alina A Kokhanenko
- Department of Genetics and Cell Biology and the Laboratory of Ecology, Genetics and Environmental Protection, Tomsk State University, Tomsk, Russia
| | - Semen M Bondarenko
- Department of Entomology, the Fralin Life Sciences Institute, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
- Department of Genetics and Cell Biology and the Laboratory of Ecology, Genetics and Environmental Protection, Tomsk State University, Tomsk, Russia
| | - Mohammad R Abai
- Department of Medical Entomology and Vector Control, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Kamali
- Department of Medical Entomology and Parasitology, Tarbiat Modares University, Tehran, Iran
| | - Mikhail I Gordeev
- Department of General Biology and Ecology, State University of Education, Mytishchi, Russia
| | - Anton V Moskaev
- Department of General Biology and Ecology, State University of Education, Mytishchi, Russia
| | - Beniamino Caputo
- Dipartimento Di Sanità Pubblica E Malattie Infettive, Università Sapienza, Rome, Italy
| | - Sargis A Aghayan
- Scientific Center of Zoology and Hydroecology, National Academy of Sciences of the Republic of Armenia, Yerevan, Armenia
- Department of Zoology, Yerevan State University, Yerevan, Armenia
| | - Elina M Baricheva
- Laboratory of Cell Differentiation Mechanisms, the Federal Research Center, Institute of Cytology and Genetics, Novosibirsk, Russia
| | - Vladimir N Stegniy
- Department of Genetics and Cell Biology and the Laboratory of Ecology, Genetics and Environmental Protection, Tomsk State University, Tomsk, Russia
| | - Maria V Sharakhova
- Department of Entomology, the Fralin Life Sciences Institute, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA.
- Laboratory of Cell Differentiation Mechanisms, the Federal Research Center, Institute of Cytology and Genetics, Novosibirsk, Russia.
| | - Igor V Sharakhov
- Department of Entomology, the Fralin Life Sciences Institute, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA.
- Department of Genetics and Cell Biology and the Laboratory of Ecology, Genetics and Environmental Protection, Tomsk State University, Tomsk, Russia.
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Ali R, Wan Mohamad Ali WN, Wilson Putit P. Updating the Data on Malaria Vectors in Malaysia: Protocol for a Scoping Review. JMIR Res Protoc 2023; 12:e39798. [PMID: 36877567 PMCID: PMC10028518 DOI: 10.2196/39798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 10/02/2022] [Accepted: 10/29/2022] [Indexed: 03/07/2023] Open
Abstract
BACKGROUND Malaria is still a public health threat. From 2015 to 2021, a total of 23,214 malaria cases were recorded in Malaysia. Thus, effective intervention and key entomological information are vital for interrupting or preventing malaria transmission. Therefore, the availability of malaria vector information is desperately needed. OBJECTIVE The objective of our study is to update the list of human and zoonotic malaria vectors in Malaysia. This work will include (1) the characterization of the key behavioral traits and breeding sites of malaria vectors and (2) the determination of new and potential malaria vectors in Malaysia. The findings of our scoping review will serve as decision-making evidence that stakeholders and decision makers can use to strengthen and intensify malaria surveillance in Malaysia. METHODS The scoping review will be conducted based on the following four electronic databases: Scopus, PubMed, Google Scholar, and Science Direct. A search strategy was conducted for articles published from database inception to March 2022. The criteria for article inclusion were any malaria vector-related studies conducted in Malaysia (with no time frame restrictions) and peer-reviewed studies. The PRISMA-ScR (Preferred Reporting Items for Systematic Reviews and Meta-Analyses Extension for Scoping Reviews) will be used to guide our systematic approach. Data from published research literature will be extracted by using a standardized data extraction framework, including the titles, abstracts, characteristics, and main findings of the included studies. To assess the risk of bias, articles will be screened independently by 2 reviewers, and a third reviewer will make the final decision if disagreements occur. RESULTS The study commenced in June 2021, and it is planned to be completed at end of 2022. As of early 2022, we identified 631 articles. After accessing and evaluating the articles, 48 were found to be eligible. Full-text screening will be conducted in mid-2022. The results of the scoping review will be published as an open-access article in a peer-reviewed journal. CONCLUSIONS Our novel scoping review of malaria vectors in Malaysia will provide a comprehensive evidence summary of updated, relevant information. An understanding of the status of Anopheles as malaria vectors and the knowledge generated from the behavioral characteristics of malaria vectors are the key components in making effective interventions for eliminating malaria. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID) DERR1-10.2196/39798.
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Affiliation(s)
- Rafidah Ali
- Institute for Public Health, National Institutes of Health, Selangor, Malaysia
| | - Wan Najdah Wan Mohamad Ali
- Medical Entomology Unit, Institute for Medical Research, National Institutes of Health, Selangor, Malaysia
| | - Perada Wilson Putit
- Entomology and Pest Sector, Ministry of Health, Malaysia, Putrajaya, Malaysia
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13
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Entomological Surveillance Activities in Regions in Greece: Data on Mosquito Species Abundance and West Nile Virus Detection in Culex pipiens Pools (2019-2020). Trop Med Infect Dis 2022; 8:tropicalmed8010001. [PMID: 36668908 PMCID: PMC9865208 DOI: 10.3390/tropicalmed8010001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 12/05/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022] Open
Abstract
Human cases of West Nile virus (WNV) infections have been recorded in Greece since 2010, with seasonal outbreaks (summer-autumn) on an almost annual basis, caused mainly by the WNV lineage 2 strain (Nea Santa-Greece-2010). National Public Health Organization (NPHO) in Greece is annually implementing enhanced surveillance of human WNV infection, in order to promptly identify human cases of WNV infection and monitor distribution in terms of time and place. Entomological surveillance activities were carried out on a national basis in 2019 and 2020, under NPHO coordination and the collaboration of several private subcontractors, along with the Unit of Medical Entomology, Laboratory for Surveillance of Infectious Diseases (LSID). The aim was to monitor mosquito species composition, abundance, and WNV circulation in mosquito pools of Culex pipiens s.l. species. Adult mosquito traps were placed in selected sites; collected samples were morphologically characterized and pooled by date of collection, location, and species types. Female Culex pipiens s.l. pools were tested for WNV and WNV infection rates (MIR and MLE) were estimated. Highest mean number of female Culex pipiens s.l. species was recorded in Central Macedonia both for 2019 and 2020. Six hundred and fifty-nine mosquito pools (147 in 2019 and 512 in 2020) of female Culex pipiens s.l. were examined for WNV presence. The highest MLE was detected in Western Macedonia in 2019 and in Thessaly in 2020. Here, we present data on the mosquito species composition in the studied areas and WNV detection in mosquitoes from areas in Greece where the specific national mosquito surveillance program was implemented, for two years, 2019 and 2020.
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14
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Bellin N, Calzolari M, Magoga G, Callegari E, Bonilauri P, Lelli D, Dottori M, Montagna M, Rossi V. Unsupervised machine learning and geometric morphometrics as tools for the identification of inter and intraspecific variations in the Anopheles Maculipennis complex. Acta Trop 2022; 233:106585. [PMID: 35787418 DOI: 10.1016/j.actatropica.2022.106585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 06/08/2022] [Accepted: 06/30/2022] [Indexed: 11/01/2022]
Abstract
Geometric morphometric analysis was combined with two different unsupervised machine learning algorithms, UMAP and HDBSCAN, to visualize morphological differences in wing shape among and within four Anopheles sibling species (An. atroparvus, An. melanoon, An. maculipennis s.s. and An. daciae sp. inq.) of the Maculipennis complex in Northern Italy. Specifically, we evaluated: 1) wing shape variation among and within species; 2) the consistencies between groups of An. maculipennis s.s. and An. daciae sp. inq. identified based on COI sequences and wing shape variability; and 3) the spatial and temporal distribution of different morphotypes. UMAP detected at least 13 main patterns of variation in wing shape among the four analyzed species and mapped intraspecific morphological variations. The relationship between the most abundant COI haplotypes of An. daciae sp. inq. and shape ordination/variation was not significant. However, morphological variation within haplotypes was reported. HDBSCAN also recognized different clusters of morphotypes within An. daciae sp. inq. (12) and An. maculipennis s.s. (4). All morphotypes shared a similar pattern of variation in the subcostal vein, in the anal vein and in the radio-medial cross-vein of the wing. On the contrary, the marginal part of the wings remained unchanged in all clusters of both species. Any spatial-temporal significant difference was observed in the frequency of the identified morphotypes. Our study demonstrated that machine learning algorithms are a useful tool combined with geometric morphometrics and suggest to deepen the analysis of inter and intra specific shape variability to evaluate evolutionary constrains related to wing functionality.
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Affiliation(s)
- Nicolò Bellin
- University of Parma, Department of Chemistry, Life Sciences and Environmental Sustainability, Parco Area delle Scienze, 11/A 43124 Parma, Italy.
| | - Mattia Calzolari
- Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna ''B. Ubertini'' (IZSLER), Brescia, Italy
| | - Giulia Magoga
- Università degli Studi di Milano, Dipartimento di Scienze Agrarie e Ambientali, Via Celoria 2, 20133 Milan, Italy
| | - Emanuele Callegari
- Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna ''B. Ubertini'' (IZSLER), Brescia, Italy
| | - Paolo Bonilauri
- Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna ''B. Ubertini'' (IZSLER), Brescia, Italy
| | - Davide Lelli
- Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna ''B. Ubertini'' (IZSLER), Brescia, Italy
| | - Michele Dottori
- Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna ''B. Ubertini'' (IZSLER), Brescia, Italy
| | - Matteo Montagna
- Università degli Studi di Milano, Dipartimento di Scienze Agrarie e Ambientali, Via Celoria 2, 20133 Milan, Italy
| | - Valeria Rossi
- University of Parma, Department of Chemistry, Life Sciences and Environmental Sustainability, Parco Area delle Scienze, 11/A 43124 Parma, Italy
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15
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Bertola M, Fornasiero D, Sgubin S, Mazzon L, Pombi M, Montarsi F. Comparative efficacy of BG-Sentinel 2 and CDC-like mosquito traps for monitoring potential malaria vectors in Europe. Parasit Vectors 2022; 15:160. [PMID: 35526068 PMCID: PMC9077833 DOI: 10.1186/s13071-022-05285-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 04/11/2022] [Indexed: 11/10/2022] Open
Abstract
Background Different trapping devices and attractants are used in the mosquito surveillance programs currently running in Europe. Most of these devices target vector species belonging to the genera Culex or Aedes, and no studies have yet evaluated the effectiveness of different trapping devices for the specific targeting of Anopheles mosquito species, which are potential vectors of malaria in Europe. This study aims to fill this gap in knowledge by comparing the performance of trapping methods that are commonly used in European mosquito surveillance programs for Culex and Aedes for the specific collection of adults of species of the Anopheles maculipennis complex. Methods The following combinations of traps and attractants were used: (i) BG-Sentinel 2 (BG trap) baited with a BG-Lure cartridge (BG + lure), (ii) BG trap baited with a BG-Lure cartridge and CO2 (BG + lure + CO2), (iii) Centers for Disease Control and Prevention-like trap (CDC trap) baited with CO2 (CDC + CO2), (iv) CDC trap used with light and baited with BG-Lure and CO2 (CDC light + lure + CO2). These combinations were compared in the field using a 4 × 4 Latin square study design. The trial was conducted in two sites in northeastern Italy in 2019. Anopheles species were identified morphologically and a sub-sample of An. maculipennis complex specimens were identified to species level by molecular analysis. Results Forty-eight collections were performed on 12 different trapping days at each site, and a total of 1721 An. maculipennis complex specimens were captured. The molecular analysis of a sub-sample comprising 254 specimens identified both Anopheles messeae/Anopheles daciae (n = 103) and Anopheles maculipennis sensu stricto (n = 8) at site 1, while at site 2 only An. messeae/An. daciae (n = 143) was found. The four trapping devices differed with respect to the number of An. messeae/An. daciae captured. More mosquitoes were caught by the BG trap when it was used with additional lures (i.e. BG + lure + CO2) than without the attractant, CO2 [ratioBG+lure vs BG+lure+CO2 = 0.206, 95% confidence interval (CI) 0.101–0.420, P < 0.0001], while no significant differences were observed between CDC + CO2 and CDC light + lure + CO2 (P = 0.321). The addition of CO2 to BG + lure increased the ability of this combination to capture An. messeae/An. daciae by a factor of 4.85, and it also trapped more mosquitoes of other, non-target species (Culex pipiens, ratioBG+lure vs BG+lure+CO2 = 0.119, 95% CI 0.056–0.250, P < 0.0001; Ochlerotatus caspius, ratioBG+lure vs BG+lure+CO2 = 0.035, 95% CI 0.015–0.080, P < 0.0001). Conclusions Our results show that both the BG-Sentinel and CDC trap can be used to effectively sample An. messeae/An. daciae, but that the combination of the BG-Sentinel trap with the BG-Lure and CO2 was the most effective means of achieving this. BG + lure + CO2 is considered the best combination for the routine monitoring of host-seeking An. maculipennis complex species such as An. messeae/An. daciae. The BG-Sentinel and CDC traps have value as alternative methods to human landing catches and manual aspiration for the standardized monitoring of Anopheles species in Europe. Graphical abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s13071-022-05285-9.
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Affiliation(s)
- Michela Bertola
- Istituto Zooprofilattico Sperimentale delle Venezie, 35020, Legnaro, Padua, Italy
| | - Diletta Fornasiero
- Istituto Zooprofilattico Sperimentale delle Venezie, 35020, Legnaro, Padua, Italy
| | - Sofia Sgubin
- Istituto Zooprofilattico Sperimentale delle Venezie, 35020, Legnaro, Padua, Italy
| | - Luca Mazzon
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, 35020, Legnaro, Padua, Italy
| | - Marco Pombi
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Rome, Italy
| | - Fabrizio Montarsi
- Istituto Zooprofilattico Sperimentale delle Venezie, 35020, Legnaro, Padua, Italy. .,Department of Public Health and Infectious Diseases, Sapienza University of Rome, Rome, Italy.
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