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Arich S, Assaid N, Weill M, Tmimi FZ, Taki H, Sarih M, Labbé P. Human activities and densities shape insecticide resistance distribution and dynamics in the virus-vector Culex pipiens mosquitoes from Morocco. Parasit Vectors 2024; 17:72. [PMID: 38374110 PMCID: PMC10877764 DOI: 10.1186/s13071-024-06164-1] [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: 10/24/2023] [Accepted: 01/25/2024] [Indexed: 02/21/2024] Open
Abstract
BACKGROUND Mosquitoes of the Culex pipiens complex are widely distributed vectors for several arboviruses affecting humans. Consequently, their populations have long been controlled using insecticides, in response to which different resistance mechanisms have been selected. Moreover, their ecological preferences and broad adaptability allow C. pipiens mosquitoes to breed in highly polluted water bodies where they are exposed to many residuals from anthropogenic activities. It has been observed for several mosquito species that anthropization (in particular urbanization and agricultural lands) can lead to increased exposure to insecticides and thus to increased resistance. The main objective of the present study was to investigate whether and how urbanization and/or agricultural lands had a similar impact on C. pipiens resistance to insecticides in Morocco. METHODS Breeding sites were sampled along several transects in four regions around major Moroccan cities, following gradients of decreasing anthropization. The imprint of anthropogenic activities was evaluated around each site as the percentage of areas classified in three categories: urban, agricultural and natural. We then assessed the frequencies of four known resistance alleles in these samples and followed their dynamics in five urban breeding sites over 4 years. RESULTS The distribution of resistance alleles revealed a strong impact of anthropization, in both agricultural and urbanized lands, although different between resistance mutations and between Moroccan regions; we did not find any clear trend in the dynamics of these resistance alleles during the survey. CONCLUSIONS Our study provides further evidence for the role of anthropic activities in the selection and maintenance of mutations selected for resistance to insecticides in mosquitoes. The consequences are worrying as this could decrease vector control capacities and thus result in epizootic and epidemic outbreaks. Consequently, concerted and integrated disease control strategies must be designed that include better management regarding the consequences of our activities.
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Affiliation(s)
- Soukaina Arich
- Institut des Sciences de l'Évolution de Montpellier, UMR 5554, CNRS-UM-IRD- EPHE), Université de Montpellier, Cedex 5, Montpellier, France
- Laboratory of Biology and Health, Faculty of Sciences Ben M'Sik, URAC34, Hassan II University of Casablanca, Casablanca, Morocco
- Laboratoire des Maladies Vectorielles (LMV), Institut Pasteur du Maroc, Casablanca, Morocco
| | - Najlaa Assaid
- Laboratoire des Maladies Vectorielles (LMV), Institut Pasteur du Maroc, Casablanca, Morocco
| | - Mylène Weill
- Institut des Sciences de l'Évolution de Montpellier, UMR 5554, CNRS-UM-IRD- EPHE), Université de Montpellier, Cedex 5, Montpellier, France
| | - Fatim-Zohra Tmimi
- Laboratoire des Maladies Vectorielles (LMV), Institut Pasteur du Maroc, Casablanca, Morocco
| | - Hassan Taki
- Laboratory of Biology and Health, Faculty of Sciences Ben M'Sik, URAC34, Hassan II University of Casablanca, Casablanca, Morocco
| | - M'hammed Sarih
- Laboratoire des Maladies Vectorielles (LMV), Institut Pasteur du Maroc, Casablanca, Morocco
| | - Pierrick Labbé
- Institut des Sciences de l'Évolution de Montpellier, UMR 5554, CNRS-UM-IRD- EPHE), Université de Montpellier, Cedex 5, Montpellier, France.
- Institut Universitaire de France, 1 rue Descartes, 75231, Cedex 05 Paris, France.
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Adib D, Jafari A, Silivanova E, Basseri H, Gholizadeh S. Molecular analysis of acetylcholinesterase gene in field-collected populations of Musca domestica (Diptera: Muscidae) in Northwestern Iran. JOURNAL OF INSECT SCIENCE (ONLINE) 2023; 23:9. [PMID: 37480682 PMCID: PMC10362979 DOI: 10.1093/jisesa/iead054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 06/03/2023] [Accepted: 06/22/2023] [Indexed: 07/24/2023]
Abstract
Nowadays, pyrethroid (Py) insecticides are commonly used against household insect pests and housefly. The combination of Py and organophosphates (OP) are also utilized to combat these insects. The resistance status of Iranian housefly populations to them and carbamate (CB) insecticides is uncertain. This study investigates the presence of acetylcholinesterase (AChE) mutations related to the resistance of Musca domestica to OP and/or CB insecticides in Northwestern Iran. Nucleotides 1041-1776, based on their positions in the ACE gene of aabys strain, were amplified and sequenced in houseflies collected from West Azerbaijan, Gilan, and Ardebil Provinces, Iran. Among 12 single-nucleotide polymorphisms detected, 3 mismatches were found at nucleotides 1174 (T/A, G), 1473 (G/T, C), and 1668 (T/A), leading to amino acid substitutions in V260L, G342A/V, and F407Y positions with various combinations. Genotyping results showed that 85% of specimens had at least one of these substitutions. In addition, the Iranian housefly population was composed of 5 insensitive and sensitive alleles. For the first time, the current study reports the presence of V260L, G342A, G342V, and F407Y substitutions in M. domestica specimens collected from Northwestern Iran. The selection of multiple alleles in field populations might be due to the application of various pesticides/insecticides during extended periods in the region. These molecular levels signify the presence of control problems in the area and the need for developing effective control strategies for such populations.
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Affiliation(s)
- Delnia Adib
- Health and Biomedical Informatics Research Center, Urmia University of Medical Sciences, Urmia, Iran
- Medical Entomology Department, School of Public Health, Urmia University of Medical Sciences, Urmia, Iran
| | - Abbas Jafari
- Cellular and Molecular Research Center, Cellular and Molecular Medicine Institute, Urmia University of Medical Sciences, Urmia, Iran
- Department of Clinical Toxicology, School of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Elena Silivanova
- All-Russian Scientific Research Institute of Veterinary Entomology and Arachnology, Branch of Federal State Institution Federal Research Centre Tyumen Scientific Centre, Siberian Branch of the Russian Academy of Sciences (ASRIVEA - Branch of Tyumen Scientific Centre SB RAS), Institutskaya St. 2, Tyumen, 625041, Russian Federation
| | - Hamidreza Basseri
- Vector Biology and Control of Diseases Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Saber Gholizadeh
- Health and Biomedical Informatics Research Center, Urmia University of Medical Sciences, Urmia, Iran
- Medical Entomology Department, School of Public Health, Urmia University of Medical Sciences, Urmia, Iran
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Stancu IG, Prioteasa FL, Tiron GV, Cotar AI, Fălcuță E, Porea D, Dinu S, Ceianu CS, Csutak O. Distribution of Insecticide Resistance Genetic Markers in the West Nile Virus Vector Culex pipiens from South-Eastern Romania. INSECTS 2022; 13:1062. [PMID: 36421965 PMCID: PMC9698598 DOI: 10.3390/insects13111062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 10/31/2022] [Accepted: 11/14/2022] [Indexed: 06/16/2023]
Abstract
Culex pipiens pipiens and Culex pipiens molestus mosquitoes are the vectors of West Nile virus in south-eastern Romania, an area of intense circulation and human transmission of this virus. The level of insecticide resistance for the mosquito populations in the region has not been previously assessed. Culex pipiens mosquitoes collected between 2018 and 2019 in south-eastern Romania from different habitats were subjected to biotype identification by real-time PCR. Substitutions causing resistance to organophosphates and carbamates (F290V and G119S in acetylcholinesterase 1) and to pyrethroids (L1014F in voltage gated Na+ channel) were screened by PCR or sequencing. Substitutions F290V and G119S were detected at very low frequencies and only in heterozygous state in Culex pipiens molestus biotype specimens collected in urban areas. The molestus biotype population analysed was entirely homozygous for L1014F, and high frequencies of this substitution were also found for pipiens biotype and hybrid mosquitoes collected in urban and in intensive agriculture areas. Reducing the selective pressure by limiting the use of pyrethroid insecticides only for regions where it is absolutely necessary and monitoring L1014F mutation should be taken into consideration when implementing vector control strategies.
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Affiliation(s)
- Ioana Georgeta Stancu
- Department of Genetics, Faculty of Biology, University of Bucharest, 1–3 Aleea Portocalelor, 060101 Bucharest, Romania
- Vector-Borne Infections Laboratory, Cantacuzino National Military Medical Institute for Research and Development, 103 Splaiul Independenței, 050096 Bucharest, Romania
| | - Florian Liviu Prioteasa
- Medical Entomology Laboratory, Cantacuzino National Military Medical Institute for Research and Development, 103 Splaiul Independenței, 050096 Bucharest, Romania
| | - Georgiana Victorița Tiron
- Vector-Borne Infections Laboratory, Cantacuzino National Military Medical Institute for Research and Development, 103 Splaiul Independenței, 050096 Bucharest, Romania
- Department of Microbiology, Faculty of Biology, University of Bucharest, 1–3 Aleea Portocalelor, 060101 Bucharest, Romania
| | - Ani Ioana Cotar
- Vector-Borne Infections Laboratory, Cantacuzino National Military Medical Institute for Research and Development, 103 Splaiul Independenței, 050096 Bucharest, Romania
| | - Elena Fălcuță
- Medical Entomology Laboratory, Cantacuzino National Military Medical Institute for Research and Development, 103 Splaiul Independenței, 050096 Bucharest, Romania
| | - Daniela Porea
- Danube Delta National Institute for Research and Development, 165 Babadag, 820112 Tulcea, Romania
| | - Sorin Dinu
- Molecular Epidemiology for Communicable Diseases Laboratory, Cantacuzino National Military Medical Institute for Research and Development, 103 Splaiul Independenței, 050096 Bucharest, Romania
| | - Cornelia Svetlana Ceianu
- Vector-Borne Infections Laboratory, Cantacuzino National Military Medical Institute for Research and Development, 103 Splaiul Independenței, 050096 Bucharest, Romania
| | - Ortansa Csutak
- Department of Genetics, Faculty of Biology, University of Bucharest, 1–3 Aleea Portocalelor, 060101 Bucharest, Romania
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Arich S, Haba Y, Assaid N, Fritz ML, McBride CS, Weill M, Taki H, Sarih M, Labbé P. No association between habitat, autogeny and genetics in Moroccan Culex pipiens populations. Parasit Vectors 2022; 15:405. [PMID: 36329500 PMCID: PMC9635193 DOI: 10.1186/s13071-022-05469-3] [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: 05/23/2022] [Accepted: 08/29/2022] [Indexed: 11/06/2022] Open
Abstract
Background Mosquitoes of the Culex pipiens complex are found across the globe and are the focus of many research studies. Among the temperate species C. pipiens sensu stricto (s.s.), two forms are usually described: molestus and pipiens. These two forms are indistinguishable in terms of morphology but show behavioral and physiological differences that may have consequences for their associated epidemiology. The two forms are well defined in the northern part of the species distribution, where autogeny is strictly associated with the molestus form. However, whether the two remain distinct and show the characteristic differences in behavior is less clear in North Africa, at the southern edge of their range. Methods The association between autogeny, as determined by ovarian dissection, and molecular forms, based on the CQ11 microsatellite marker, was studied in six Moroccan populations of C. pipiens. Results An overall low prevalence of autogeny was found at three of the Moroccan regions studied, although it reached 17.5% in the Agadir population. The prevalence of form-specific CQ11 alleles was quite similar across all populations, with the molestus allele being rarer (approx. 15%), except in the Agadir population where it reached 43.3%. We found significant deficits in heterozygotes at the diagnostic CQ11 locus in three populations, but the three other populations showed no significant departure from panmixia, which is in line with the results of a retrospective analysis of the published data. More importantly, we found no association between the autogeny status and CQ11 genotypes, despite the many females analyzed. Conclusions There was limited evidence for two discrete forms in Morocco, where individuals carrying pipiens and molestus alleles breed and mate in the same sites and are equally likely to be capable of autogeny. These observations are discussed in the epidemiological context of Morocco, where C. pipiens is the main vector of several arboviruses. Graphical Abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s13071-022-05469-3.
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Affiliation(s)
- Soukaina Arich
- Institut Des Sciences de L'Évolution de Montpellier, UMR 5554, CNRS-UM-IRD-EPHE, Université de Montpellier, Montpellier, Cedex 5, France.,Laboratory of Biology and Health, Faculty of Sciences Ben M'Sik, URAC34, Hassan II University of Casablanca, Casablanca, Morocco.,Laboratoire Des Maladies Vectorielles (LMV), Institut Pasteur du Maroc, Casablanca, Morocco
| | - Yuki Haba
- Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ 08544, USA
| | - Najlaa Assaid
- Laboratoire Des Maladies Vectorielles (LMV), Institut Pasteur du Maroc, Casablanca, Morocco
| | - Megan L Fritz
- Department of Entomology, University of Maryland, College Park, MD, USA
| | - Carolyn S McBride
- Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ 08544, USA.,Princeton Neuroscience Institute, Princeton University, Princeton, NJ 08544, USA
| | - Mylène Weill
- Institut Des Sciences de L'Évolution de Montpellier, UMR 5554, CNRS-UM-IRD-EPHE, Université de Montpellier, Montpellier, Cedex 5, France
| | - Hassan Taki
- Laboratory of Biology and Health, Faculty of Sciences Ben M'Sik, URAC34, Hassan II University of Casablanca, Casablanca, Morocco
| | - M'hammed Sarih
- Laboratoire Des Maladies Vectorielles (LMV), Institut Pasteur du Maroc, Casablanca, Morocco
| | - Pierrick Labbé
- Institut Des Sciences de L'Évolution de Montpellier, UMR 5554, CNRS-UM-IRD-EPHE, Université de Montpellier, Montpellier, Cedex 5, France. .,Institut Universitaire de France, 1 rue Descartes, 75231 Cedex 05, Paris, France.
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Nebbak A, Almeras L, Parola P, Bitam I. Mosquito Vectors (Diptera: Culicidae) and Mosquito-Borne Diseases in North Africa. INSECTS 2022; 13:962. [PMID: 36292910 PMCID: PMC9604161 DOI: 10.3390/insects13100962] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 09/30/2022] [Accepted: 10/14/2022] [Indexed: 06/16/2023]
Abstract
Mosquitoes (Diptera: Culicidae) are of significant public health importance because of their ability to transmit major diseases to humans and animals, and are considered as the world's most deadly arthropods. In recent decades, climate change and globalization have promoted mosquito-borne diseases' (MBDs) geographic expansion to new areas, such as North African countries, where some of these MBDs were unusual or even unknown. In this review, we summarize the latest data on mosquito vector species distribution and MBDs affecting both human and animals in North Africa, in order to better understand the risks associated with the introduction of new invasive mosquito species such as Aedes albopictus. Currently, 26 mosquito species confirmed as pathogen vectors occur in North Africa, including Aedes (five species), Culex (eight species), Culiseta (one species) and Anopheles (12 species). These 26 species are involved in the circulation of seven MBDs in North Africa, including two parasitic infections (malaria and filariasis) and five viral infections (WNV, RVF, DENV, SINV and USUV). No bacterial diseases have been reported so far in this area. This review may guide research studies to fill the data gaps, as well as helping with developing effective vector surveillance and controlling strategies by concerned institutions in different involved countries, leading to cooperative and coordinate vector control measures.
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Affiliation(s)
- Amira Nebbak
- Centre de Recherche Scientifique et Technique en Analyses Physico-Chimiques (CRAPC), BP 384, Zone Industrielle, Bou-Ismail 42004, Algeria
| | - Lionel Almeras
- Aix Marseille University, IRD, AP-HM, SSA, VITROME, 13005 Marseille, France
- Unité Parasitologie et Entomologie, Département Microbiologie et Maladies Infectieuses, Institut de Recherche Biomédicale des Armées, 19-21 Boulevard Jean Moulin, 13005 Marseille, France
- IHU-Méditerranée Infection, 13005 Marseille, France
| | - Philippe Parola
- Aix Marseille University, IRD, AP-HM, SSA, VITROME, 13005 Marseille, France
- IHU-Méditerranée Infection, 13005 Marseille, France
| | - Idir Bitam
- Aix Marseille University, IRD, AP-HM, SSA, VITROME, 13005 Marseille, France
- École Supérieure en Sciences de l’Aliment et des Industries Agroalimentaire d’Alger, Oued Smar 16059, Algeria
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Assaid N, Arich S, Ezzikouri S, Benjelloun S, Dia M, Faye O, Akarid K, Beck C, Lecollinet S, Failloux AB, Sarih M. Serological evidence of West Nile virus infection in human populations and domestic birds in the Northwest of Morocco. Comp Immunol Microbiol Infect Dis 2021; 76:101646. [PMID: 33845402 DOI: 10.1016/j.cimid.2021.101646] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 03/08/2021] [Accepted: 03/15/2021] [Indexed: 10/21/2022]
Abstract
West Nile virus (WNV) was recently detected in Culex pipiens mosquitoes in Morocco. The aim of this study was to evaluate the seroprevalence of WNV in humans and in domestic birds in two regions of Morocco by the detection of IgG antibodies. Blood samples were obtained from 91 human patients and 92 domestic birds from September to December 2019. All study samples were tested using competitive enzyme-linked immunosorbent assay (cELISA) and WNV neutralization tests (VNT) were performed on positive sera. Of all samples, 4 (4.39 %) humans and 4 (4.34 %) birds were found to be seropositive for flaviviruses by the cELISA test. The VNT revealed that three of the four human samples detected positive by cELISA contained neutralizing antibodies against WNV. Two bird samples were confirmed positive by VNT. These results show a significant seroprevalence of anti-WNV antibodies and therefore suggest the active circulation and exposure of human and bird populations in the northwest of Morocco.
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Affiliation(s)
- Najlaa Assaid
- Institut Pasteur du Maroc, Service de Parasitologie et des Maladies Vectorielles, Place Louis Pasteur, Casablanca 20360, Morocco; Molecular Genetics and Immunophysiopathology Research Team, Health and Environment Laboratory, Aïn Chock Faculty of Sciences, University of Hassan II Casablanca (UH2C), Casablanca, Morocco.
| | - Soukaina Arich
- Institut Pasteur du Maroc, Service de Parasitologie et des Maladies Vectorielles, Place Louis Pasteur, Casablanca 20360, Morocco.
| | - Sayeh Ezzikouri
- Virology Unit, Viral Hepatitis Laboratory, Institut Pasteur du Maroc 1, Place Louis Pasteur, 20360 Casablanca, Morocco.
| | - Soumaya Benjelloun
- Virology Unit, Viral Hepatitis Laboratory, Institut Pasteur du Maroc 1, Place Louis Pasteur, 20360 Casablanca, Morocco.
| | - Moussa Dia
- Virology Department, Institut Pasteur de Dakar, 36 Avenue Pasteur, Dakar, Senegal.
| | - Oumar Faye
- Virology Department, Institut Pasteur de Dakar, 36 Avenue Pasteur, Dakar, Senegal.
| | - Khadija Akarid
- Molecular Genetics and Immunophysiopathology Research Team, Health and Environment Laboratory, Aïn Chock Faculty of Sciences, University of Hassan II Casablanca (UH2C), Casablanca, Morocco.
| | - Cécile Beck
- UMR1161 Virologie, INRAE, ANSES, Ecole Nationale Vétérinaire d'Alfort, Université Paris-Est, Maisons-Alfort, France.
| | - Sylvie Lecollinet
- UMR1161 Virologie, INRAE, ANSES, Ecole Nationale Vétérinaire d'Alfort, Université Paris-Est, Maisons-Alfort, France.
| | - Anna-Bella Failloux
- Department of Virology, Institut Pasteur, Arboviruses and Insect Vectors Unit, Paris, France.
| | - M'hammed Sarih
- Institut Pasteur du Maroc, Service de Parasitologie et des Maladies Vectorielles, Place Louis Pasteur, Casablanca 20360, Morocco.
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