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Identification of Neotropical Culex Mosquitoes by MALDI-TOF MS Profiling. Trop Med Infect Dis 2023; 8:tropicalmed8030168. [PMID: 36977169 PMCID: PMC10055718 DOI: 10.3390/tropicalmed8030168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 03/02/2023] [Accepted: 03/09/2023] [Indexed: 03/16/2023] Open
Abstract
The mosquito (Diptera: Culicidae) fauna of French Guiana encompasses 242 species, of which nearly half of them belong to the genus Culex. Whereas several species of Culex are important vectors of arboviruses, only a limited number of studies focus on them due to the difficulties to morphologically identify field-caught females. Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) has been reported as a promising method for the identification of mosquitoes. Culex females collected in French Guiana were morphologically identified and dissected. Abdomens were used for molecular identification using the COI (cytochrome oxidase 1) gene. Legs and thorax of 169 specimens belonging to 13 Culex species, (i.e., Cx. declarator, Cx. nigripalpus, Cx. quinquefasciatus, Cx. usquatus, Cx. adamesi, Cx. dunni, Cx. eastor, Cx. idottus, Cx. pedroi, Cx. phlogistus, Cx. portesi, Cx. rabanicolus and Cx. spissipes) were then submitted to MALDI-TOF MS analysis. A high intra-species reproducibility and inter-species specificity of MS spectra for each mosquito body part tested were obtained. A corroboration of the specimen identification was revealed between MALDI-TOF MS, morphological and molecular results. MALDI-TOF MS protein profiling proves to be a suitable tool for identification of neotropical Culex species and will permit the enhancement of knowledge on this highly diverse genus.
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Velut G, de Laval F, Delon F, d'Oléon A, Douine M, Mosnier E, Mmadi Mrenda B, Dia A, Musset L, Briolant S, Pommier de Santi V. Sharp decrease in malaria incidence among the French armed forces in French Guiana. Travel Med Infect Dis 2023; 52:102547. [PMID: 36740087 DOI: 10.1016/j.tmaid.2023.102547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 01/12/2023] [Accepted: 02/02/2023] [Indexed: 02/07/2023]
Affiliation(s)
- Guillaume Velut
- French Armed Forces Center for Epidemiology and Public Health (CESPA), Marseille, France.
| | - Franck de Laval
- French Armed Forces Center for Epidemiology and Public Health (CESPA), Marseille, France; Aix-Marseille University, INSERM, IRD, SESSTIM (Economic and Social Sciences, Health Systems, and Medical Informatics), Marseille, France
| | - François Delon
- Aix-Marseille University, INSERM, IRD, SESSTIM (Economic and Social Sciences, Health Systems, and Medical Informatics), Marseille, France; Joint Directorate of the Armed Forces Health Service for French Guiana DIASS, Cayenne, French Guiana
| | - Albane d'Oléon
- French Armed Forces Center for Epidemiology and Public Health (CESPA), Marseille, France
| | - Maylis Douine
- French West Indies-French Guiana Center for Clinical Investigation, CIC Inserm 1424, DRISP, Cayenne Hospital, Avenue des Flamboyants, Cayenne, French Guiana
| | - Emilie Mosnier
- Aix-Marseille University, INSERM, IRD, SESSTIM (Economic and Social Sciences, Health Systems, and Medical Informatics), Marseille, France
| | - Bakridine Mmadi Mrenda
- French Armed Forces Center for Epidemiology and Public Health (CESPA), Marseille, France
| | - Aissata Dia
- French Armed Forces Center for Epidemiology and Public Health (CESPA), Marseille, France
| | - Lise Musset
- Laboratory of Parasitology, National Reference Center for Malaria, Institut Pasteur in French Guiana, Collaborating Center for the Surveillance of Resistance to Antimalarial Drugs, Cayenne, French Guiana
| | - Sébastien Briolant
- Parasitology and Entomology Unit, Department of Infectious Diseases, Armed Forces Biomedical Research Institute, Marseille, France; University Hospital Institute Méditerranée Infection, Marseille, France; Aix-Marseille University, IRD, AP-HM, SSA, VITROME, Marseille, France
| | - Vincent Pommier de Santi
- French Armed Forces Center for Epidemiology and Public Health (CESPA), Marseille, France; University Hospital Institute Méditerranée Infection, Marseille, France; Aix-Marseille University, IRD, AP-HM, SSA, VITROME, Marseille, France
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Vezenegho SB, Issaly J, Carinci R, Gaborit P, Girod R, Dusfour I, Briolant S. Discrimination of 15 Amazonian Anopheline Mosquito Species by Polymerase Chain Reaction-Restriction Fragment Length Polymorphism. JOURNAL OF MEDICAL ENTOMOLOGY 2022; 59:1060-1064. [PMID: 35139212 DOI: 10.1093/jme/tjac008] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Indexed: 06/14/2023]
Abstract
Precise identification of anopheline species is paramount for incrimination of malaria vectors and implementation of a sustainable control program. Anopheline mosquitoes are routinely identified morphologically, a technique that is time-consuming, needs high level of expertise, and prone to misidentifications especially when considering Amazonian species. The aim of this study was therefore to develop a DNA-based identification technique to supplement traditional morphological identification methods for the discrimination of anopheline mosquitoes collected in French Guiana. The internal transcribed spacer 2 (ITS2) region of ribosomal DNA (rDNA) for anopheline species was amplified by polymerase chain reaction (PCR), and digested with AluI/MspI restriction enzymes. PCR-restriction fragments length polymorphism (RFLP) assay was compared to sequencing of the ITS2 region for validation. Fifteen Anopheles species have shown distinct PCR-RFLP profiles. A concordance of 100% was obtained when identification by PCR-RFLP was compared to sequencing of ITS2. A high throughput, fast, and cost-effective PCR-RFLP assay has been developed for unambiguous discrimination of fifteen anopheline mosquito species from French Guiana including primary and suspected secondary malaria vectors.
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Affiliation(s)
- S B Vezenegho
- Medical Entomology Unit, Institut Pasteur de la Guyane, 23 Avenue Pasteur, BP 6010, 97306 Cayenne Cedex, French Guiana
| | - J Issaly
- Medical Entomology Unit, Institut Pasteur de la Guyane, 23 Avenue Pasteur, BP 6010, 97306 Cayenne Cedex, French Guiana
| | - R Carinci
- Medical Entomology Unit, Institut Pasteur de la Guyane, 23 Avenue Pasteur, BP 6010, 97306 Cayenne Cedex, French Guiana
| | - P Gaborit
- Medical Entomology Unit, Institut Pasteur de la Guyane, 23 Avenue Pasteur, BP 6010, 97306 Cayenne Cedex, French Guiana
| | - R Girod
- Medical Entomology Unit, Institut Pasteur de la Guyane, 23 Avenue Pasteur, BP 6010, 97306 Cayenne Cedex, French Guiana
| | - Isabelle Dusfour
- Medical Entomology Unit, Institut Pasteur de la Guyane, 23 Avenue Pasteur, BP 6010, 97306 Cayenne Cedex, French Guiana
- MIVEGEC, UMR IRD 224-CNRS 5290, Université de Montpellier, 911 Av. Agropolis, 34394 Montpellier, France
- Département de Santé Globale, Institut Pasteur, 25-28 Rue du Dr Roux, 75015 Paris, France
| | - S Briolant
- Aix Marseille Université, Institut de Recherche pour le Développement (IRD), Assistance Publique-Hôpitaux de Marseille (AP-HM), Service de Santé des Armées (SSA), Vecteurs - Infections Tropicales et Méditerranéennes (VITROME), Marseille, France
- Institut Hospitalo-Universitaire (IHU) - Méditerranée Infection, 19-21 Bd Jean Moulin, 13005 Marseille, France
- Unité de Parasitologie Entomologie, Département de Microbiologie et Maladies Infectieuses, Institut de Recherche Biomédicale des Armées (IRBA) , 19-21 Bd Jean Moulin, 13005 Marseille, France
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Silva-do-Nascimento TF, Sánchez-Ribas J, Oliveira TMP, Bourke BP, Oliveira-Ferreira J, Rosa-Freitas MG, Lourenço-de-Oliveira R, Marinho-e-Silva M, Neves MSAS, Conn JE, Sallum MAM. Molecular Analysis Reveals a High Diversity of Anopheline Mosquitoes in Yanomami Lands and the Pantanal Region of Brazil. Genes (Basel) 2021; 12:1995. [PMID: 34946944 PMCID: PMC8701885 DOI: 10.3390/genes12121995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 12/06/2021] [Accepted: 12/10/2021] [Indexed: 11/16/2022] Open
Abstract
Identifying the species of the subfamily Anophelinae that are Plasmodium vectors is important to vector and malaria control. Despite the increase in cases, vector mosquitoes remain poorly known in Brazilian indigenous communities. This study explores Anophelinae mosquito diversity in the following areas: (1) a Yanomami reserve in the northwestern Amazon Brazil biome and (2) the Pantanal biome in southwestern Brazil. This is carried out by analyzing cytochrome c oxidase (COI) gene data using Refined Single Linkage (RESL), Assemble Species by Automatic Partitioning (ASAP), and tree-based multi-rate Poisson tree processes (mPTP) as species delimitation approaches. A total of 216 specimens collected from the Yanomami and Pantanal regions were sequenced and combined with 547 reference sequences for species delimitation analyses. The mPTP analysis for all sequences resulted in the delimitation of 45 species groups, while the ASAP analysis provided the partition of 48 groups. RESL analysis resulted in 63 operational taxonomic units (OTUs). This study expands our scant knowledge of anopheline species in the Yanomami and Pantanal regions. At least 18 species of Anophelinae mosquitoes were found in these study areas. Additional studies are now required to determine the species that transmit Plasmodium spp. in these regions.
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Affiliation(s)
- Teresa Fernandes Silva-do-Nascimento
- Laboratório de Mosquitos Transmissores de Hematozoários, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro 21040-360, Brazil; (T.F.S.-d.-N.); (J.S.-R.); (J.O.-F.); (M.G.R.-F.); (R.L.-d.-O.); (M.M.-e.-S.); (M.S.A.S.N.)
| | - Jordi Sánchez-Ribas
- Laboratório de Mosquitos Transmissores de Hematozoários, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro 21040-360, Brazil; (T.F.S.-d.-N.); (J.S.-R.); (J.O.-F.); (M.G.R.-F.); (R.L.-d.-O.); (M.M.-e.-S.); (M.S.A.S.N.)
- Laboratório de Imunoparasitologia, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro 21040-360, Brazil
- Distrito Sanitário Especial Indígena Yanomami, Roraima 69301-080, Brazil
| | - Tatiane M. P. Oliveira
- Departamento de Epidemiologia, Faculdade de Saúde Pública, Universidade de São Paulo, São Paulo 01246-904, Brazil;
| | - Brian Patrick Bourke
- Walter Reed Biosystematics Unit, Museum Support Center MRC-534, Smithsonian Institution, 4210 Silver Hill Rd., Suitland, MD 20746, USA;
- Walter Reed Army Institute of Research, 503 Robert Grant Avenue, Silver Spring, MD 20910, USA
- Department of Entomology, Smithsonian Institution—National Museum of Natural History, 10th St. NE & Constitution Ave. NE, Washington, DC 20002, USA
| | - Joseli Oliveira-Ferreira
- Laboratório de Mosquitos Transmissores de Hematozoários, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro 21040-360, Brazil; (T.F.S.-d.-N.); (J.S.-R.); (J.O.-F.); (M.G.R.-F.); (R.L.-d.-O.); (M.M.-e.-S.); (M.S.A.S.N.)
| | - Maria Goreti Rosa-Freitas
- Laboratório de Mosquitos Transmissores de Hematozoários, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro 21040-360, Brazil; (T.F.S.-d.-N.); (J.S.-R.); (J.O.-F.); (M.G.R.-F.); (R.L.-d.-O.); (M.M.-e.-S.); (M.S.A.S.N.)
- Geniac Ltd., São Paulo 01031-902, Brazil
| | - Ricardo Lourenço-de-Oliveira
- Laboratório de Mosquitos Transmissores de Hematozoários, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro 21040-360, Brazil; (T.F.S.-d.-N.); (J.S.-R.); (J.O.-F.); (M.G.R.-F.); (R.L.-d.-O.); (M.M.-e.-S.); (M.S.A.S.N.)
| | - Mariana Marinho-e-Silva
- Laboratório de Mosquitos Transmissores de Hematozoários, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro 21040-360, Brazil; (T.F.S.-d.-N.); (J.S.-R.); (J.O.-F.); (M.G.R.-F.); (R.L.-d.-O.); (M.M.-e.-S.); (M.S.A.S.N.)
- Instituto Nacional da Propriedade Industrial, Rio de Janeiro 20090-910, Brazil
| | - Maycon Sebastião Alberto Santos Neves
- Laboratório de Mosquitos Transmissores de Hematozoários, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro 21040-360, Brazil; (T.F.S.-d.-N.); (J.S.-R.); (J.O.-F.); (M.G.R.-F.); (R.L.-d.-O.); (M.M.-e.-S.); (M.S.A.S.N.)
| | - Jan E. Conn
- Wadsworth Center, New York State Department of Health, Albany, NY 12159, USA;
- Department of Biomedical Sciences, School of Public Health, State University of New York, Albany, NY 12222, USA
| | - Maria Anice Mureb Sallum
- Departamento de Epidemiologia, Faculdade de Saúde Pública, Universidade de São Paulo, São Paulo 01246-904, Brazil;
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Briolant S, Costa MM, Nguyen C, Dusfour I, Pommier de Santi V, Girod R, Almeras L. Identification of French Guiana anopheline mosquitoes by MALDI-TOF MS profiling using protein signatures from two body parts. PLoS One 2020; 15:e0234098. [PMID: 32817616 PMCID: PMC7444543 DOI: 10.1371/journal.pone.0234098] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 07/23/2020] [Indexed: 01/17/2023] Open
Abstract
In French Guiana, the malaria, a parasitic infection transmitted by Anopheline mosquitoes, remains a disease of public health importance. To prevent malaria transmission, the main effective way remains Anopheles control. For an effective control, accurate Anopheles species identification is indispensable to distinguish malaria vectors from non-vectors. Although, morphological and molecular methods are largely used, an innovative tool, based on protein pattern comparisons, the Matrix Assisted Laser Desorption / Ionization Time-of-Flight Mass Spectrometry (MALDI-TOF MS) profiling, emerged this last decade for arthropod identification. However, the limited mosquito fauna diversity of reference MS spectra remains one of the main drawback for its large usage. The aim of the present study was then to create and to share reference MS spectra for the identification of French Guiana Anopheline species. A total of eight distinct Anopheles species, among which four are malaria vectors, were collected in 6 areas. To improve Anopheles identification, two body parts, legs and thoraxes, were independently submitted to MS for the creation of respective reference MS spectra database (DB). This study underlined that double checking by MS enhanced the Anopheles identification confidence and rate of reliable classification. The sharing of this reference MS spectra DB should make easier Anopheles species monitoring in endemic malaria area to help malaria vector control or elimination programs.
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Affiliation(s)
- Sébastien Briolant
- Unité de Parasitologie et Entomologie, Département de Microbiologie et Maladies Infectieuses, Institut de Recherche Biomédicale des Armées, Marseille, France
- Aix Marseille Université, IRD, AP-HM, SSA, UMR Vecteurs–Infections Tropicales et Méditerranéennes (VITROME), IHU—Méditerranée Infection, Marseille, France
| | - Monique Melo Costa
- Unité de Parasitologie et Entomologie, Département de Microbiologie et Maladies Infectieuses, Institut de Recherche Biomédicale des Armées, Marseille, France
- Aix Marseille Université, IRD, AP-HM, SSA, UMR Vecteurs–Infections Tropicales et Méditerranéennes (VITROME), IHU—Méditerranée Infection, Marseille, France
| | - Christophe Nguyen
- Unité de Parasitologie et Entomologie, Département de Microbiologie et Maladies Infectieuses, Institut de Recherche Biomédicale des Armées, Marseille, France
- Aix Marseille Université, IRD, AP-HM, SSA, UMR Vecteurs–Infections Tropicales et Méditerranéennes (VITROME), IHU—Méditerranée Infection, Marseille, France
| | - Isabelle Dusfour
- Unite d’Entomologie Médicale, Institut Pasteur de la Guyane, Cayenne, French Guiana
| | | | - Romain Girod
- Unite d’Entomologie Médicale, Institut Pasteur de la Guyane, Cayenne, French Guiana
- Medical Entomology Unit, Institut Pasteur de Madagascar, Antananarivo, Madagascar
| | - Lionel Almeras
- Unité de Parasitologie et Entomologie, Département de Microbiologie et Maladies Infectieuses, Institut de Recherche Biomédicale des Armées, Marseille, France
- Aix Marseille Université, IRD, AP-HM, SSA, UMR Vecteurs–Infections Tropicales et Méditerranéennes (VITROME), IHU—Méditerranée Infection, Marseille, France
- * E-mail:
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Thellier M, Simard F, Musset L, Cot M, Velut G, Kendjo E, Pradines B. Changes in malaria epidemiology in France and worldwide, 2000-2015. Med Mal Infect 2019; 50:99-112. [PMID: 31257063 DOI: 10.1016/j.medmal.2019.06.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Accepted: 06/11/2019] [Indexed: 12/15/2022]
Abstract
In 2015, 212 million new cases of malaria were reported, causing 429,000 deaths. The World Health Organization (WHO) estimated a 41% decrease in the number of new cases worldwide between 2000 and 2015. The number of deaths from malaria fell by 62% worldwide and by 71% in Africa. In mainland France, malaria is mainly imported by travelers or migrants from endemic areas, in particular sub-Saharan Africa (95%). In France, the number of imported malaria cases, mainly due to Plasmodium falciparum (85%), was estimated at about 82,000 for the period 2000-2015. Over the same period, 6,468 cases of malaria were reported in the French armed forces, of which 2,430 cases (37.6%) were considered as imported because occurring outside of endemic areas. The number of malaria cases also fell between 2000 and 2015 in Mayotte and French Guiana, a malaria transmission zone. Mayotte has entered the elimination of malaria with less than 15 cases per year. In French Guiana, between 300 and 500 cases have been reported annually in recent years. The decline in morbidity and mortality is usually attributed to vector control measures and improved access to effective treatments. However, the Anopheles mosquitoes that transmit the disease have developed resistance against most insecticides. Similarly, malaria parasites have developed resistance against most of the antimalarial drugs used as prevention or treatment, even the latest marketed combinations such as artemisinin-based combination therapies.
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Affiliation(s)
- M Thellier
- Service de parasitologie-mycologie, Centre national de référence du paludisme, hôpital Pitié-Salpêtrière, Assistance publique Hôpitaux de Paris, 47, boulevard de l'Hôpital, 75013 Paris, France; UMRS 1136, iPLESP, institut Pierre-Louis d'épidémiologie et de santé publique, Sorbonne université, 27, rue Chaligny, 75571 Paris 12, France; UPMC, faculté de médecine, Sorbonne université, université Pierre-et-Marie-Curie, 91, boulevard de l'Hôpital, 75013 Paris, France
| | - F Simard
- MIVEGEC, IRD-CNRS-university Montpellier, 911, avenue Agropolis, BP 64501, 34394 Montpellier, France
| | - L Musset
- Laboratoire de parasitologie, Centre collaborateur OMS pour la surveillance des résistances aux antipaludiques, institut Pasteur de la Guyane, 23, avenue Louis Pasteur, 97300 Cayenne, France; Centre national de référence du paludisme, institut Pasteur de la Guyane, 23, avenue Louis Pasteur, 97300 Cayenne, France
| | - M Cot
- UMR2016, unité Mère et enfant face aux infections tropicales, institut de recherche pour le développement, 4, avenue de l'Observatoire, 75006 Paris, France
| | - G Velut
- Centre d'épidémiologie et de santé publique des armées, GSBdD Marseille Aubagne, BP 40026, 13568 Marseille cedex 02, France; Direction interarmées du service de santé des armées, Quartier La Madeleine, 97306 Cayenne, France
| | - E Kendjo
- Service de parasitologie-mycologie, Centre national de référence du paludisme, hôpital Pitié-Salpêtrière, Assistance publique Hôpitaux de Paris, 47, boulevard de l'Hôpital, 75013 Paris, France; UMRS 1136, iPLESP, institut Pierre-Louis d'épidémiologie et de santé publique, Sorbonne université, 27, rue Chaligny, 75571 Paris 12, France; UPMC, faculté de médecine, Sorbonne université, université Pierre-et-Marie-Curie, 91, boulevard de l'Hôpital, 75013 Paris, France
| | - B Pradines
- Unité parasitologie et entomologie, institut de recherche biomédicale des armées, institut hospitalo-universitaire Méditerranée Infection, 19-21, boulevard Jean-Moulin, 13005 Marseille, France; Aix Marseille université, IRD, AP-HM, SSA, VITROME, institut hospitalo-universitaire Méditerranée Infection, 19-21, boulevard Jean-Moulin, 13005 Marseille, France; Institut hospitalo-universitaire Méditerranée Infection, 19-21, boulevard Jean-Moulin, 13005 Marseille, France; Centre national de référence du paludisme, institut hospitalo-universitaire Méditerranée Infection, 19-21, boulevard Jean-Moulin, 13005 Marseille, France.
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Prussing C, Bickersmith SA, Moreno M, Saavedra MP, Alava F, Sallum MAM, Gamboa D, Vinetz JM, Conn JE. Nyssorhynchus dunhami: bionomics and natural infection by Plasmodium falciparum and P. vivax in the Peruvian Amazon. Mem Inst Oswaldo Cruz 2018; 113:e180380. [PMID: 30517211 PMCID: PMC6276023 DOI: 10.1590/0074-02760180380] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Accepted: 10/30/2018] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Nyssorhynchus dunhami, a member of the Nuneztovari Complex, has been collected in Brazil, Colombia, and Peru and described as zoophilic. Although to date Ny. dunhami has not been documented to be naturally infected by Plasmodium, it is frequently misidentified as other Oswaldoi subgroup species that are local or regional malaria vectors. OBJECTIVES The current study seeks to verify the morphological identification of Nuneztovari Complex species collected in the peri-Iquitos region of Amazonian Peru, to determine their Plasmodium infection status, and to describe ecological characteristics of their larval habitats. METHODS We collected Ny. nuneztovari s.l. adults in 2011-2012, and Ny. nuneztovari s.l. larvae and adults in 2016-2017. When possible, samples were identified molecularly using cytochrome c oxidase subunit I (COI) barcode sequencing. Adult Ny. nuneztovari s.l. from 2011-2012 were tested for Plasmodium using real-time PCR. Environmental characteristics associated with Ny. nuneztovari s.l. larvae-positive water bodies were evaluated. FINDINGS We collected 590 Ny. nuneztovari s.l. adults and 116 larvae from eight villages in peri-Iquitos. Of these, 191 adults and 111 larvae were identified by COI sequencing; all were Ny. dunhami. Three Ny. dunhami were infected with P. falciparum, and one with P. vivax, all collected from one village on one night. Ny. dunhami larvae were collected from natural and artificial water bodies, and their presence was positively associated with other Anophelinae larvae and amphibians, and negatively associated with people living within 250m. MAIN CONCLUSIONS Of Nuneztovari Complex species, we identified only Ny. dunhami across multiple years in eight peri-Iquitos localities. This study is, to our knowledge, the first report of natural infection of molecularly identified Ny. dunhami with Plasmodium. We advocate the use of molecular identification methods in this region to monitor Ny. dunhami and other putative secondary malaria vectors to more precisely evaluate their importance in malaria transmission.
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Affiliation(s)
- Catharine Prussing
- University at Albany, State University of New York, School of Public Health, Department of Biomedical Sciences, Albany, NY, USA
| | | | - Marta Moreno
- University of California San Diego, Department of Medicine, Division of Infectious Diseases, La Jolla, CA, USA
| | - Marlon P Saavedra
- Universidad Peruana Cayetano Heredia, Facultad de Ciencias y Filosofia, Laboratorios de Investigación y Desarrollo, Laboratorio ICEMR-Amazonia, Lima, Peru
| | | | - Maria Anice Mureb Sallum
- Universidade de São Paulo, Faculdade de Saúde Pública, Departamento de Epidemiologia, São Paulo, SP, Brasil
| | - Dionicia Gamboa
- Universidad Peruana Cayetano Heredia, Facultad de Ciencias y Filosofia, Laboratorios de Investigación y Desarrollo, Laboratorio ICEMR-Amazonia, Lima, Peru
- Universidad Peruana Cayetano Heredia, Instituto de Medicina Tropical Alexander von Humboldt, Lima, Peru
| | - Joseph M Vinetz
- University of California San Diego, Department of Medicine, Division of Infectious Diseases, La Jolla, CA, USA
- Universidad Peruana Cayetano Heredia, Facultad de Ciencias y Filosofia, Laboratorios de Investigación y Desarrollo, Laboratorio ICEMR-Amazonia, Lima, Peru
- Universidad Peruana Cayetano Heredia, Instituto de Medicina Tropical Alexander von Humboldt, Lima, Peru
| | - Jan E Conn
- University at Albany, State University of New York, School of Public Health, Department of Biomedical Sciences, Albany, NY, USA
- Wadsworth Center, New York State Department of Health, Albany, NY, USA
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Bourke BP, Conn JE, de Oliveira TMP, Chaves LSM, Bergo ES, Laporta GZ, Sallum MAM. Exploring malaria vector diversity on the Amazon Frontier. Malar J 2018; 17:342. [PMID: 30261932 PMCID: PMC6161421 DOI: 10.1186/s12936-018-2483-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2018] [Accepted: 09/10/2018] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Deforestation in the Amazon and the social vulnerability of its settler communities has been associated with increased malaria incidence. The feeding biology of the most important malaria vectors in the region, notably Nyssorhynchus darlingi, compounds efforts to control vectors and reduce transmission of what has become known as "Frontier Malaria". Exploring Anophelinae mosquito diversity is fundamental to understanding the species responsible for transmission and developing appropriate management and intervention strategies for malaria control in the Amazon River basin. METHODS This study describes Anophelinae mosquito diversity from settler communities affected by Frontier Malaria in the states of Acre, Amazonas and Rondônia by analysing COI gene data using cluster and tree-based species delimitation approaches. RESULTS In total, 270 specimens from collection sites were sequenced and these were combined with 151 reference (GenBank) sequences in the analysis to assist in species identification. Conservative estimates found that the number of species collected at these sites was between 23 (mPTP partition) and 27 (strict ABGD partition) species, up to 13 of which appeared to be new. Nyssorhynchus triannulatus and Nyssorhynchus braziliensis displayed exceptional levels of intraspecific genetic diversity but there was little to no support for putative species complex status. CONCLUSIONS This study demonstrates that Anophelinae mosquito diversity continues to be underestimated in poorly sampled areas where frontier malaria is a major public health concern. The findings will help shape future studies of vector incrimination and transmission dynamics in these areas and support efforts to develop more effective vector control and transmission reduction strategies in settler communities in the Amazon River basin.
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Affiliation(s)
- Brian P Bourke
- Department of Epidemiology, Faculty of Public Health, University of São Paulo, São Paulo, SP, Brazil.
| | - Jan E Conn
- Wadsworth Center, New York State Department of Health, Slingerlands, NY, 12159, USA
- Department of Biomedical Sciences, School of Public Health, State University of New York-Albany, Albany, NY, 12222, USA
| | - Tatiane M P de Oliveira
- Department of Epidemiology, Faculty of Public Health, University of São Paulo, São Paulo, SP, Brazil
| | - Leonardo S M Chaves
- Department of Epidemiology, Faculty of Public Health, University of São Paulo, São Paulo, SP, Brazil
| | - Eduardo S Bergo
- Superintendência de Controle de Endemias, Secretaria de Estado da Saúde de São Paulo, Araraquara, SP, Brazil
| | - Gabriel Z Laporta
- Setor de Pós-graduação, Pesquisa e Inovação, Faculdade de Medicina do ABC, Santo André, SP, Brazil
| | - Maria A M Sallum
- Department of Epidemiology, Faculty of Public Health, University of São Paulo, São Paulo, SP, Brazil
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9
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Saraiva JF, Souto RNP, Scarpassa VM. Molecular taxonomy and evolutionary relationships in the Oswaldoi-Konderi complex (Anophelinae: Anopheles: Nyssorhynchus) from the Brazilian Amazon region. PLoS One 2018; 13:e0193591. [PMID: 29505595 PMCID: PMC5837296 DOI: 10.1371/journal.pone.0193591] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2017] [Accepted: 02/14/2018] [Indexed: 11/19/2022] Open
Abstract
Recent studies have shown that Anopheles oswaldoi sensu lato comprises a cryptic species complex in South America. Anopheles konderi, which was previously raised to synonymy with An. oswaldoi, has also been suggested to form a species complex. An. oswaldoi has been incriminated as a malaria vector in some areas of the Brazilian Amazon, Colombia, Peru and Venezuela, but was not recognized as a vector in the remaining regions in its geographic distribution. The role of An. konderi as a malaria vector is unknown or has been misattributed to An. oswaldoi. The focus of this study was molecular identification to infer the evolutionary relationships and preliminarily delimit the geographic distribution of the members of these complexes in the Brazilian Amazon region. The specimens were sampled from 18 localities belonging to five states in the Brazilian Amazon and sequenced for two molecular markers: the DNA barcode region (COI gene of mitochondrial DNA) and Internal Transcribed Spacer 2 (ITS2 ribosomal DNA). COI (83 sequences) and ITS2 (27 sequences) datasets generated 43 and 10 haplotypes, respectively. Haplotype networks and phylogenetic analyses generated with the barcode region (COI gene) recovered five groups corresponding to An. oswaldoi s.s., An. oswaldoi B, An. oswaldoi A, An. konderi and An. sp. nr. konderi; all pairwise genetic distances were greater than 3%. The group represented by An. oswaldoi A exhibited three strongly supported lineages. The molecular dating indicated that the diversification process in these complexes started approximately 2.8 Mya, in the Pliocene. These findings confirm five very closely related species and present new records for these species in the Brazilian Amazon region. The paraphyly observed for the An. oswaldoi complex suggests that An. oswaldoi and An. konderi complexes may comprise a unique species complex named Oswaldoi-Konderi. Anopheles oswaldoi B may be a potential malaria vector in the extreme north of the Brazilian Amazon, whereas evidence of sympatry for the remaining species in other parts of the Brazilian Amazon (Acre, Amazonas, Pará and Rondônia) precluded identification of probable vectors in those areas.
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Affiliation(s)
- José Ferreira Saraiva
- Laboratório de Genética de Populações e Evolução de Mosquitos Vetores de Malária e Dengue, Coordenação de Biodiversidade, Instituto Nacional de Pesquisas da Amazônia, Manaus, Amazonas, Brazil
| | - Raimundo Nonato Picanço Souto
- Laboratório de Arthropoda, Departamento de Ciências Biológicas e da Saúde, Universidade Federal do Amapá, Macapá, Amapá, Brazil
| | - Vera Margarete Scarpassa
- Laboratório de Genética de Populações e Evolução de Mosquitos Vetores de Malária e Dengue, Coordenação de Biodiversidade, Instituto Nacional de Pesquisas da Amazônia, Manaus, Amazonas, Brazil
- * E-mail:
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10
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Loaiza JR, Dutari LC, Rovira JR, Sanjur OI, Laporta GZ, Pecor J, Foley DH, Eastwood G, Kramer LD, Radtke M, Pongsiri M. Disturbance and mosquito diversity in the lowland tropical rainforest of central Panama. Sci Rep 2017; 7:7248. [PMID: 28775261 PMCID: PMC5543164 DOI: 10.1038/s41598-017-07476-2] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Accepted: 06/28/2017] [Indexed: 11/30/2022] Open
Abstract
The Intermediate Disturbance Hypothesis (IDH) is well-known in ecology providing an explanation for the role of disturbance in the coexistence of climax and colonist species. Here, we used the IDH as a framework to describe the role of forest disturbance in shaping the mosquito community structure, and to identify the ecological processes that increase the emergence of vector-borne disease. Mosquitoes were collected in central Panama at immature stages along linear transects in colonising, mixed and climax forest habitats, representing different levels of disturbance. Species were identified taxonomically and classified into functional categories (i.e., colonist, climax, disturbance-generalist, and rare). Using the Huisman-Olff-Fresco multi-model selection approach, IDH testing was done. We did not detect a unimodal relationship between species diversity and forest disturbance expected under the IDH; instead diversity peaked in old-growth forests. Habitat complexity and constraints are two mechanisms proposed to explain this alternative postulate. Moreover, colonist mosquito species were more likely to be involved in or capable of pathogen transmission than climax species. Vector species occurrence decreased notably in undisturbed forest settings. Old-growth forest conservation in tropical rainforests is therefore a highly-recommended solution for preventing new outbreaks of arboviral and parasitic diseases in anthropic environments.
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Affiliation(s)
- Jose R Loaiza
- Instituto de Investigaciones Científicas y Servicios de Alta Tecnología, Edificio 219, Clayton, PO, 0843-01103, Ciudad del Saber, Republic of Panama.
- Smithsonian Tropical Research Institute, Panama City, Republic of Panama.
- Programa Centroamericano de Maestría en Entomología, Universidad de Panama, Panama, Republic of Panama.
| | - Larissa C Dutari
- Instituto de Investigaciones Científicas y Servicios de Alta Tecnología, Edificio 219, Clayton, PO, 0843-01103, Ciudad del Saber, Republic of Panama
| | - Jose R Rovira
- Instituto de Investigaciones Científicas y Servicios de Alta Tecnología, Edificio 219, Clayton, PO, 0843-01103, Ciudad del Saber, Republic of Panama
- Smithsonian Tropical Research Institute, Panama City, Republic of Panama
| | - Oris I Sanjur
- Smithsonian Tropical Research Institute, Panama City, Republic of Panama
| | - Gabriel Z Laporta
- Centro de Engenharia, Modelagem e Ciências Sociais Aplicadas, Universidade Federal do ABC, Santo Andre, SP, Brazil.
- Setor de Pós-graduação, Pesquisa e Inovação, Faculdade de Medicina do ABC, Santo Andre, SP, Brazil.
| | - James Pecor
- Walter Reed Biosystematics Unit, Smithsonian Institution, Museum Support Center, Suitland, MD, United States
| | - Desmond H Foley
- Walter Reed Biosystematics Unit, Smithsonian Institution, Museum Support Center, Suitland, MD, United States
| | - Gillian Eastwood
- Wadsworth Center, New York State Department of Health, Slingerlands, NY, United States
| | - Laura D Kramer
- Wadsworth Center, New York State Department of Health, Slingerlands, NY, United States
| | - Meghan Radtke
- US Environment Protection Agency, Washington DC, United States
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11
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Talaga S, Leroy C, Guidez A, Dusfour I, Girod R, Dejean A, Murienne J. DNA reference libraries of French Guianese mosquitoes for barcoding and metabarcoding. PLoS One 2017; 12:e0176993. [PMID: 28575090 PMCID: PMC5456030 DOI: 10.1371/journal.pone.0176993] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Accepted: 04/20/2017] [Indexed: 11/29/2022] Open
Abstract
The mosquito family (Diptera: Culicidae) constitutes the most medically important group of arthropods because certain species are vectors of human pathogens. In some parts of the world, the diversity is so high that the accurate delimitation and/or identification of species is challenging. A DNA-based identification system for all animals has been proposed, the so-called DNA barcoding approach. In this study, our objectives were (i) to establish DNA barcode libraries for the mosquitoes of French Guiana based on the COI and the 16S markers, (ii) to compare distance-based and tree-based methods of species delimitation to traditional taxonomy, and (iii) to evaluate the accuracy of each marker in identifying specimens. A total of 266 specimens belonging to 75 morphologically identified species or morphospecies were analyzed allowing us to delimit 86 DNA clusters with only 21 of them already present in the BOLD database. We thus provide a substantial contribution to the global mosquito barcoding initiative. Our results confirm that DNA barcodes can be successfully used to delimit and identify mosquito species with only a few cases where the marker could not distinguish closely related species. Our results also validate the presence of new species identified based on morphology, plus potential cases of cryptic species. We found that both COI and 16S markers performed very well, with successful identifications at the species level of up to 98% for COI and 97% for 16S when compared to traditional taxonomy. This shows great potential for the use of metabarcoding for vector monitoring and eco-epidemiological studies.
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Affiliation(s)
- Stanislas Talaga
- Institut Pasteur de la Guyane, Unité d’Entomologie Médicale, Cayenne, France
- UMR EcoFoG, CNRS, AgroParisTech, Cirad, INRA, Université de Guyane, Université des Antilles, Kourou, France
- * E-mail:
| | - Céline Leroy
- IRD, UMR AMAP (botAnique et Modélisation de l’Architecture des Plantes), Boulevard de la Lironde, Montpellier, France
| | - Amandine Guidez
- Institut Pasteur de la Guyane, Unité d’Entomologie Médicale, Cayenne, France
| | - Isabelle Dusfour
- Institut Pasteur de la Guyane, Unité d’Entomologie Médicale, Cayenne, France
| | - Romain Girod
- Institut Pasteur de la Guyane, Unité d’Entomologie Médicale, Cayenne, France
| | - Alain Dejean
- UMR EcoFoG, CNRS, AgroParisTech, Cirad, INRA, Université de Guyane, Université des Antilles, Kourou, France
- UMR Ecolab, Université de Toulouse Paul Sabatier, CNRS, INP-ENSAT, Toulouse, France
| | - Jérôme Murienne
- UMR EDB, CNRS, ENFA, Université de Toulouse Paul Sabatier, Toulouse, France
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12
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Moua Y, Roux E, Girod R, Dusfour I, de Thoisy B, Seyler F, Briolant S. Distribution of the Habitat Suitability of the Main Malaria Vector in French Guiana Using Maximum Entropy Modeling. JOURNAL OF MEDICAL ENTOMOLOGY 2017; 54:606-621. [PMID: 28011731 DOI: 10.1093/jme/tjw199] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Accepted: 10/25/2016] [Indexed: 06/06/2023]
Abstract
Malaria is an important health issue in French Guiana. Its principal mosquito vector in this region is Anopheles darlingi Root. Knowledge of the spatial distribution of this species is still very incomplete due to the extent of French Guiana and the difficulty to access most of the territory. Species distribution modeling based on the maximal entropy procedure was used to predict the spatial distribution of An. darlingi using 39 presence sites. The resulting model provided significantly high prediction performances (mean 10-fold cross-validated partial area under the curve and continuous Boyce index equal to, respectively, 1.11-with a level of omission error of 20%-and 0.42). The model also provided a habitat suitability map and environmental response curves in accordance with the known entomological situation. Several environmental characteristics that had a positive correlation with the presence of An. darlingi were highlighted: nonpermanent anthropogenic changes of the natural environment, the presence of roads and tracks, and opening of the forest. Some geomorphological landforms and high altitude landscapes appear to be unsuitable for An. darlingi. The species distribution modeling was able to reliably predict the distribution of suitable habitats for An. darlingi in French Guiana. Results allowed completion of the knowledge of the spatial distribution of the principal malaria vector in this Amazonian region, and identification of the main factors that favor its presence. They should contribute to the definition of a necessary targeted vector control strategy in a malaria pre-elimination stage, and allow extrapolation of the acquired knowledge to other Amazonian or malaria-endemic contexts.
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Affiliation(s)
- Yi Moua
- Université de Guyane, ESPACE-DEV, UMR 228 (IRD, UM, UR, UA, UG), Cayenne, French Guiana
| | - Emmanuel Roux
- Institut de Recherche pour le Développement, ESPACE-DEV, UMR 228 (IRD, UM, UR, UA, UG), Montpellier, France (; )
| | - Romain Girod
- Unité d'Entomologie Médicale, Institut Pasteur de la Guyane, Cayenne, French Guiana (; ; )
| | - Isabelle Dusfour
- Unité d'Entomologie Médicale, Institut Pasteur de la Guyane, Cayenne, French Guiana (; ; )
| | - Benoit de Thoisy
- Laboratoire des Interactions Virus Hôtes, Institut Pasteur de la Guyane, Cayenne, French Guiana
| | - Frédérique Seyler
- Institut de Recherche pour le Développement, ESPACE-DEV, UMR 228 (IRD, UM, UR, UA, UG), Montpellier, France (; )
| | - Sébastien Briolant
- Unité d'Entomologie Médicale, Institut Pasteur de la Guyane, Cayenne, French Guiana ( ; ; )
- Direction Interarmées du Service de Santé en Guyane, Cayenne, French Guiana
- Institut de Recherche Biomédicales des Armées, Unité de Parasitologie et d'Entomologie Médicale, Marseille, France
- Unité de Recherche en Maladies Infectieuses Tropicales Emergentes, UMR 63, CNRS 7278, IRD 198, INSERM 1095, Faculté de Médecine La Timone, Marseille, France
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13
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Adde A, Dusfour I, Vezenegho SB, Carinci R, Issaly J, Gaborit P, Nguyen C, Ardillon V, Girod R, Briolant S. Spatial and Seasonal Dynamics of Anopheles Mosquitoes in Saint-Georges de l'Oyapock, French Guiana: Influence of Environmental Factors. JOURNAL OF MEDICAL ENTOMOLOGY 2017; 54:597-605. [PMID: 28399277 DOI: 10.1093/jme/tjx031] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Accepted: 12/24/2016] [Indexed: 06/07/2023]
Abstract
Little is known about the Anopheles fauna of Saint-Georges de l'Oyapock, a persistent malaria-endemic municipality in French Guiana. This study aimed to update the knowledge of local Anopheles diversity, and their ecology and role in malaria transmission. Sampling sessions were implemented between September 2013 and October 2014. Four species were identified from the 3,450 specimens collected: Anopheles darlingi Root, An. braziliensis, An. triannulatus s.l., and An. nuneztovari s.l. Anopheles darlingi was the predominant species. Its involvement in malaria transmission was suspected due to 1) its abundance, 2) the presence of a density peak during the malaria emergence period, and 3) a dynamic correlated with malaria cases observed two months later. Present and past studies show that the influence of environmental conditions on malaria vector dynamics is high, and may vary drastically according to the local context. This supports evidence that control strategies must be designed at fine scales.
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Affiliation(s)
- A Adde
- Unité d'Entomologie Médicale, Institut Pasteur de la Guyane, 23 Avenue Pasteur BP 6010, 97306, Cayenne Cedex, French Guiana (; ; ; ; ; ; ; ; )
| | - I Dusfour
- Unité d'Entomologie Médicale, Institut Pasteur de la Guyane, 23 Avenue Pasteur BP 6010, 97306, Cayenne Cedex, French Guiana (; ; ; ; ; ; ; ; )
| | - S B Vezenegho
- Unité d'Entomologie Médicale, Institut Pasteur de la Guyane, 23 Avenue Pasteur BP 6010, 97306, Cayenne Cedex, French Guiana (; ; ; ; ; ; ; ; )
| | - R Carinci
- Unité d'Entomologie Médicale, Institut Pasteur de la Guyane, 23 Avenue Pasteur BP 6010, 97306, Cayenne Cedex, French Guiana (; ; ; ; ; ; ; ; )
| | - J Issaly
- Unité d'Entomologie Médicale, Institut Pasteur de la Guyane, 23 Avenue Pasteur BP 6010, 97306, Cayenne Cedex, French Guiana (; ; ; ; ; ; ; ; )
| | - P Gaborit
- Unité d'Entomologie Médicale, Institut Pasteur de la Guyane, 23 Avenue Pasteur BP 6010, 97306, Cayenne Cedex, French Guiana (; ; ; ; ; ; ; ; )
| | - C Nguyen
- Unité d'Entomologie Médicale, Institut Pasteur de la Guyane, 23 Avenue Pasteur BP 6010, 97306, Cayenne Cedex, French Guiana ( ; ; ; ; ; ; ; ; )
- Direction Interarmées du Service de Santé en Guyane, La Madeleine BP 6019, 97306, Cayenne Cedex, French Guiana
- Unité de Parasitologie et d'Entomologie Médicale, Institut de Recherche Biomédicale des Armées, Hôpital d'Instruction des Armées Laveran, 34 Boulevard Laveran, 13013, Marseille, France
- Unité de Recherche en Maladies Infectieuses Tropicales Emergentes, UMR 63, CNRS 7278, IRD 198, INSERM 1095, Faculté de Médecine La Timone, 27 Boulevard Jean Moulin, 13385, Marseille Cedex, France
| | - V Ardillon
- Cellule de l'Institut de Veille Sanitaire en Région Antilles-Guyane, Agence Régionale de Santé, 19 rue Schœlcher BP 7023, 97300, Cayenne Cedex, French Guiana
| | - R Girod
- Unité d'Entomologie Médicale, Institut Pasteur de la Guyane, 23 Avenue Pasteur BP 6010, 97306, Cayenne Cedex, French Guiana (; ; ; ; ; ; ; ; )
| | - S Briolant
- Unité d'Entomologie Médicale, Institut Pasteur de la Guyane, 23 Avenue Pasteur BP 6010, 97306, Cayenne Cedex, French Guiana ( ; ; ; ; ; ; ; ; )
- Direction Interarmées du Service de Santé en Guyane, La Madeleine BP 6019, 97306, Cayenne Cedex, French Guiana
- Unité de Parasitologie et d'Entomologie Médicale, Institut de Recherche Biomédicale des Armées, Hôpital d'Instruction des Armées Laveran, 34 Boulevard Laveran, 13013, Marseille, France
- Unité de Recherche en Maladies Infectieuses Tropicales Emergentes, UMR 63, CNRS 7278, IRD 198, INSERM 1095, Faculté de Médecine La Timone, 27 Boulevard Jean Moulin, 13385, Marseille Cedex, France
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14
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Figueiredo MAP, Di Santi SM, Manrique WG, Gonçalves LR, André MR, Machado RZ. Molecular identification of Plasmodium spp. and blood meal sources of anophelines in environmental reserves on São Luís Island, state of Maranhão, Brazil. Parasit Vectors 2017; 10:203. [PMID: 28441969 PMCID: PMC5405462 DOI: 10.1186/s13071-017-2133-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2016] [Accepted: 04/08/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Considering the diversity of feeding habits that females of some species of anophelines present, it is important to understand which vertebrates are part of blood food sources and how important is the role of each in the ecoepidemiology of malaria. There are many vector species for Plasmodium spp. in the State of Maranhão, Brazil. In São Luís Island, Anopheles aquasalis is the main vector for human malaria; this species is abundant in areas with primates that are positive for Plasmodium. Anopheles aquasalis has natural exophilic and zoophilic feeding behavior, but in cases of high density and absence of animals, presents quite varied behavior, and feeds on human blood. In this context, the objective of the present study was to identify Plasmodium spp. and the blood meal sources of anophelines in two environmental reserves on São Luís Island, state of Maranhão, using molecular methods. METHODS Between June and July 2013, female anophelines were collected in the Sítio Aguahy Private Reserve, in the municipality of São José de Ribamar, and in the Sítio Mangalho Reserve, located within the Maracanã Environmental Protection Area, in the municipality of São Luís. CDC-type light traps, Shannon traps and protected human bait were used during three consecutive hours in peridomestic and wooded areas. Pools of anophelines were formed using mosquitoes of the same species that had been caught at the same site on the same date. A genus-specific amplification protocol based on the 18S rRNA gene was used for qPCR and cPCR. RESULTS A total of 416 anophelines were collected, of the following species: An. aquasalis (399), An. mediopunctatus (3), An. shannoni (1), An. nuneztovari (sensu lato) (1), An. goeldii (1), An. evansae (2) and An. (Nyssorhynchus) sp. (9), comprising 54 pools. Two pools were positive for Plasmodium (2/54) based on the 18S rRNA gene. In the phylogenetic analysis using the maximum likelihood method, based on a 240 bp fragment of the 18S rRNA gene, it was found that the sequences of Plasmodium sp. amplified from pools of An. aquasalis (pool 2) and An. nuneztovari (s.l.) (pool 10) were phylogenetically related to a clade of P. falciparum isolates from India, and to a clade of Plasmodium sp. isolates from psittacines in Brazil, respectively. Cat, dog and human DNA were identified in the blood meals of the anophelines sampled. CONCLUSION The species An. aquasalis was the most abundant anopheline species in São Luís Island. Plasmodium spp. DNA was detected, thus confirming the importance of this species as the main vector on São Luís Island, Brazil. In addition, the presence of An. nuneztovari (s.l.) with DNA positive for Plasmodium spp. confirms its importance as a secondary vector.
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Affiliation(s)
- Mayra Araguaia Pereira Figueiredo
- Immunoparasitology Laboratory, School of Agrarian and Veterinary Sciences (FCAV), Universidade Estadual Paulista (UNESP) Jaboticabal Campus, Jaboticabal, SP Brazil
| | - Silvia Maria Di Santi
- Center for Malaria Studies, Superintendence of Control of Endemic Diseases, State Secretariat of Health of São Paulo/Institute of Tropical Medicine of São Paulo (IMT-SP), University of São Paulo (USP), São Paulo, SP Brazil
| | - Wilson Gómez Manrique
- Veterinary Pathology Laboratory, Brazil University, Descalvado Campus, Descalvado, SP Brazil
| | - Luiz Ricardo Gonçalves
- Immunoparasitology Laboratory, School of Agrarian and Veterinary Sciences (FCAV), Universidade Estadual Paulista (UNESP) Jaboticabal Campus, Jaboticabal, SP Brazil
| | - Marcos Rogério André
- Immunoparasitology Laboratory, School of Agrarian and Veterinary Sciences (FCAV), Universidade Estadual Paulista (UNESP) Jaboticabal Campus, Jaboticabal, SP Brazil
| | - Rosangela Zacarias Machado
- Immunoparasitology Laboratory, School of Agrarian and Veterinary Sciences (FCAV), Universidade Estadual Paulista (UNESP) Jaboticabal Campus, Jaboticabal, SP Brazil
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15
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Vezenegho SB, Adde A, Pommier de Santi V, Issaly J, Carinci R, Gaborit P, Dusfour I, Girod R, Briolant S. High malaria transmission in a forested malaria focus in French Guiana: How can exophagic Anopheles darlingi thwart vector control and prevention measures? Mem Inst Oswaldo Cruz 2017; 111:561-9. [PMID: 27653361 PMCID: PMC5027866 DOI: 10.1590/0074-02760160150] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2016] [Accepted: 07/12/2016] [Indexed: 12/01/2022] Open
Abstract
In French Guiana, malaria vector control and prevention relies on indoor residual
spraying and distribution of long lasting insecticidal nets. These measures are based
on solid epidemiological evidence but reveal a poor understanding of the vector. The
current study investigated the behaviour of both vectors and humans in relation to
the ongoing prevention strategies. In 2012 and 2013, Anopheles
mosquitoes were sampled outdoors at different seasons and in various time slots. The
collected mosquitoes were identified and screened for Plasmodium
infection. Data on human behaviour and malaria episodes were obtained from an
interview. A total of 3,135 Anopheles mosquitoes were collected, of
which Anopheles darlingi was the predominant species (96.2%). For
the December 2012-February 2013 period, the Plasmodium vivax
infection rate for An. darlingi was 7.8%, and the entomological
inoculation rate was 35.7 infective bites per person per three-month span. In spite
of high bednet usage (95.7%) in 2012 and 2013, 52.2% and 37.0% of the participants,
respectively, had at least one malaria episode. An. darlingi
displayed heterogeneous biting behaviour that peaked between 20:30 and 22:30;
however, 27.6% of the inhabitants were not yet protected by bednets by 21:30. The use
of additional individual and collective protective measures is required to limit
exposure to infective mosquito bites and reduce vector densities.
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Affiliation(s)
- Samuel B Vezenegho
- Institut Pasteur de la Guyane, Unité d'Entomologie Médicale, Cayenne, Guyane, France
| | - Antoine Adde
- Institut Pasteur de la Guyane, Unité d'Entomologie Médicale, Cayenne, Guyane, France
| | - Vincent Pommier de Santi
- Centre d'Epidémiologie et de Santé Publique des Armées, Marseille, France.,Direction Interarmées du Service de Santé en Guyane, Cayenne, Guyane, France
| | - Jean Issaly
- Institut Pasteur de la Guyane, Unité d'Entomologie Médicale, Cayenne, Guyane, France
| | - Romuald Carinci
- Institut Pasteur de la Guyane, Unité d'Entomologie Médicale, Cayenne, Guyane, France
| | - Pascal Gaborit
- Institut Pasteur de la Guyane, Unité d'Entomologie Médicale, Cayenne, Guyane, France
| | - Isabelle Dusfour
- Institut Pasteur de la Guyane, Unité d'Entomologie Médicale, Cayenne, Guyane, France
| | - Romain Girod
- Institut Pasteur de la Guyane, Unité d'Entomologie Médicale, Cayenne, Guyane, France
| | - Sébastien Briolant
- Institut Pasteur de la Guyane, Unité d'Entomologie Médicale, Cayenne, Guyane, France.,Direction Interarmées du Service de Santé en Guyane, Cayenne, Guyane, France.,Institut de Recherche Biomédicale des Armées, Département des Maladies Infectieuses, Unité de Parasitologie et d'Entomologie, Brétigny sur Orge, France.,Aix Marseille Université, Unité de Recherche sur les Maladies Infectieuses et Tropicales Emergentes, Marseille, France
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Most B, Pommier de Santi V, Pagès F, Mura M, Uedelhoven WM, Faulde MK. Long-lasting permethrin-impregnated clothing: protective efficacy against malaria in hyperendemic foci, and laundering, wearing, and weathering effects on residual bioactivity after worst-case use in the rain forests of French Guiana. Parasitol Res 2016; 116:677-684. [PMID: 27942961 DOI: 10.1007/s00436-016-5333-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Accepted: 11/18/2016] [Indexed: 11/29/2022]
Abstract
Personal protective measures against hematophagous vectors constitute the first line of defense against arthropod-borne diseases. However, guidelines for the standardized testing and licensing of insecticide-treated clothing are still lacking. The aim of this study was to analyze the preventive effect of long-lasting polymer-coated permethrin-impregnated clothing (PTBDU) against malaria after exposure to high-level disease transmission sites as well as the corresponding loss of permethrin and bioactivity during worst-case field use. Between August 2011 and June 2012, 25 personnel wearing PTBDUs and exposed for 9.5 person-months in hyperendemic malaria foci in the rain forest of French Guiana contracted no cases of malaria, whereas 125 persons wearing untreated uniforms only, exposed for 30.5 person-months, contracted 11 cases of malaria, indicating that PTBDU use significantly (p = 0.0139) protected against malaria infection. In the field, PTBDUs were laundered between 1 and 218 times (mean 25.2 ± 44.8). After field use, the mean remaining permethrin concentration in PTBDU fabric was 732.1 ± 321.1 min varying between 130 and 1270 mg/m2 (mean 743.9 ± 304.2 mg/m2) in blouses, and between 95 and 1290 mg/m2 (mean 720.2 ± 336.9 mg/m2) in trousers. Corresponding bioactivity, measured according to internal licensing conditions as KD99 times against Aedes aegypti mosquitoes, varied between 27.5 and 142.5 min (mean 47.7 ± 22.1 min) for blouses, and between 25.0 and 360 min (mean 60.2 ± 66.1 min) for trousers. We strongly recommend the use of long-lasting permethrin-impregnated clothing for the prevention of mosquito-borne diseases, including chikungunya, dengue, and zika fevers, which are currently resurging globally.
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Affiliation(s)
- Bruno Most
- Director Department A, Bundeswehr Medical Office, Koblenz, Germany
| | - Vincent Pommier de Santi
- French Armed Forces Center for Epidemiology and Public Health (CESPA), Camp Militaire de Sainte Marthe, Marseille, France
| | - Frédéric Pagès
- French Armed Forces Center for Epidemiology and Public Health (CESPA), Camp Militaire de Sainte Marthe, Marseille, France.,Regional Office of the French Institute for Public Health Surveillance (Cire OI, Institut de Veille Sanitaire), Saint-Denis, Réunion, France
| | - Marie Mura
- Institut de Recherche Biomédicale des Armées, Cedex, Brétigny sur Orge, France
| | | | - Michael K Faulde
- Department of Medical Entomology/Zoology, Central Institute of the Bundeswehr Medical Service, PO Box 7340, 56065, Koblenz, Germany. .,Institute of Medical Microbiology, Immunology and Parasitology, University Clinics Bonn, 53105, Bonn, Germany.
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Adde A, Dusfour I, Roux E, Girod R, Briolant S. Anopheles fauna of coastal Cayenne, French Guiana: modelling and mapping of species presence using remotely sensed land cover data. Mem Inst Oswaldo Cruz 2016; 111:750-756. [PMID: 27982304 PMCID: PMC5146740 DOI: 10.1590/0074-02760160272] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Accepted: 08/29/2016] [Indexed: 11/24/2022] Open
Abstract
Little is known about the Anopheles species of the coastal areas of
French Guiana, or their spatiotemporal distribution or environmental determinants.
The present study aimed to (1) document the distribution of
Anopheles fauna in the coastal area around Cayenne, and (2)
investigate the use of remotely sensed land cover data as proxies of
Anopheles presence. To characterise the
Anopheles fauna, we combined the findings of two entomological
surveys that were conducted during the period 2007-2009 and in 2014 at 37 sites.
Satellite imagery data were processed to extract land cover variables potentially
related to Anopheles ecology. Based on these data, a methodology was formed to
estimate a statistical predictive model of the spatial-seasonal variations in the
presence of Anopheles in the Cayenne region. Two
Anopheles species, known as main malaria vectors in South
America, were identified, including the more dominant An. aquasalis
near town and rural sites, and An. darlingi only found in inland
sites. Furthermore, a cross-validated model of An. aquasalis
presence that integrated marsh and forest surface area was extrapolated to generate
predictive maps. The present study supports the use of satellite imagery by health
authorities for the surveillance of malaria vectors and planning of control
strategies.
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Affiliation(s)
- Antoine Adde
- Institut Pasteur de la Guyane, Unité d'Entomologie Médicale, Cayenne, French Guiana
| | - Isabelle Dusfour
- Institut Pasteur de la Guyane, Unité d'Entomologie Médicale, Cayenne, French Guiana
| | - Emmanuel Roux
- Institut de Recherche pour le Développement, UMR ESPACE-DEV (University of French Guiana, University of French West Indies, University of la Réunion, University of Montpellier), Montpellier, France
| | - Romain Girod
- Institut Pasteur de la Guyane, Unité d'Entomologie Médicale, Cayenne, French Guiana
| | - Sébastien Briolant
- Institut Pasteur de la Guyane, Unité d'Entomologie Médicale, Cayenne, French Guiana.,Direction Interarmées du Service de Santé en Guyane, Cayenne, French Guiana.,Institut de Recherche Biomédicale des Armées, Unité de Parasitologie et d'Entomologie Médicale, Hôpital d'Instruction des Armées Laveran, Marseille, France.,Faculté de Médecine La Timone, Unité de Recherche en Maladies Infectieuses Tropicales Emergentes, Marseille, France
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18
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Adde A, Roux E, Mangeas M, Dessay N, Nacher M, Dusfour I, Girod R, Briolant S. Dynamical Mapping of Anopheles darlingi Densities in a Residual Malaria Transmission Area of French Guiana by Using Remote Sensing and Meteorological Data. PLoS One 2016; 11:e0164685. [PMID: 27749938 PMCID: PMC5066951 DOI: 10.1371/journal.pone.0164685] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Accepted: 09/29/2016] [Indexed: 11/19/2022] Open
Abstract
Local variation in the density of Anopheles mosquitoes and the risk of exposure to bites are essential to explain the spatial and temporal heterogeneities in the transmission of malaria. Vector distribution is driven by environmental factors. Based on variables derived from satellite imagery and meteorological observations, this study aimed to dynamically model and map the densities of Anopheles darlingi in the municipality of Saint-Georges de l'Oyapock (French Guiana). Longitudinal sampling sessions of An. darlingi densities were conducted between September 2012 and October 2014. Landscape and meteorological data were collected and processed to extract a panel of variables that were potentially related to An. darlingi ecology. Based on these data, a robust methodology was formed to estimate a statistical predictive model of the spatial-temporal variations in the densities of An. darlingi in Saint-Georges de l'Oyapock. The final cross-validated model integrated two landscape variables-dense forest surface and built surface-together with four meteorological variables related to rainfall, evapotranspiration, and the minimal and maximal temperatures. Extrapolation of the model allowed the generation of predictive weekly maps of An. darlingi densities at a resolution of 10-m. Our results supported the use of satellite imagery and meteorological data to predict malaria vector densities. Such fine-scale modeling approach might be a useful tool for health authorities to plan control strategies and social communication in a cost-effective, targeted, and timely manner.
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Affiliation(s)
- Antoine Adde
- Unité d’Entomologie Médicale, Institut Pasteur de la Guyane, Cayenne, French Guiana
| | - Emmanuel Roux
- UMR ESPACE-DEV, Institut de Recherche pour le Développement, Montpellier, France
| | - Morgan Mangeas
- UMR ESPACE-DEV, Institut de Recherche pour le Développement, Montpellier, France
| | - Nadine Dessay
- UMR ESPACE-DEV, Institut de Recherche pour le Développement, Montpellier, France
| | - Mathieu Nacher
- Centre d’Investigation Clinique et Epidémiologie Clinique Antilles Guyane, Centre hospitalier Andrée-Rosemon, Cayenne, French Guiana
| | - Isabelle Dusfour
- Unité d’Entomologie Médicale, Institut Pasteur de la Guyane, Cayenne, French Guiana
| | - Romain Girod
- Unité d’Entomologie Médicale, Institut Pasteur de la Guyane, Cayenne, French Guiana
| | - Sébastien Briolant
- Unité d’Entomologie Médicale, Institut Pasteur de la Guyane, Cayenne, French Guiana
- Direction Interarmées du Service de Santé en Guyane, Cayenne, French Guiana
- Unité de Parasitologie et d’Entomologie Médicale, Institut de Recherche Biomédicale des Armées, Marseille, France
- Unité de Recherche en Maladies Infectieuses Tropicales Emergentes, Faculté de Médecine La Timone, Marseille, France
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Mapping a Knowledge-Based Malaria Hazard Index Related to Landscape Using Remote Sensing: Application to the Cross-Border Area between French Guiana and Brazil. REMOTE SENSING 2016. [DOI: 10.3390/rs8040319] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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20
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Pommier de Santi V, Girod R, Mura M, Dia A, Briolant S, Djossou F, Dusfour I, Mendibil A, Simon F, Deparis X, Pagès F. Epidemiological and entomological studies of a malaria outbreak among French armed forces deployed at illegal gold mining sites reveal new aspects of the disease's transmission in French Guiana. Malar J 2016; 15:35. [PMID: 26801629 PMCID: PMC4722744 DOI: 10.1186/s12936-016-1088-x] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Accepted: 01/10/2016] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND In December 2010, a Plasmodium vivax malaria outbreak occurred among French forces involved in a mission to control illegal gold mining in French Guiana. The findings of epidemiological and entomological investigations conducted after this outbreak are presented here. METHODS Data related to malaria cases reported to the French armed forces epidemiological surveillance system were collected during the epidemic period from December 2010 to April 2011. A retrospective cohort study was conducted to identify presumed contamination sites. Anopheles mosquitoes were sampled at the identified sites using Mosquito Magnet and CDC light traps. Specimens were identified morphologically and confirmed using molecular methods (sequencing of ITS2 gene and/or barcoding). Anopheles infections with Plasmodium falciparum and P. vivax were tested by both enzyme-linked immunosorbent assay and real-time PCR. RESULTS Seventy-two P. vivax malaria cases were reported (three were mixed P. falciparum/P. vivax infections), leading to a global attack rate of 26.5% (72/272). Lack of compliance with vector control measures and doxycycline chemoprophylaxis was reported by patients. Two illegal gold mining sites located in remote areas in the primary forest were identified as places of contamination. In all, 595 Anopheles females were caught and 528 specimens were formally identified: 305 Anopheles darlingi, 145 Anopheles nuneztovari s.l., 63 Anopheles marajoara and 15 Anopheles triannulatus s.l. Three An. darlingi were infected by P. falciparum (infection rate: 1.1%) and four An. marajoara by P. vivax (infection rate: 6.4%). DISCUSSION The main drivers of the outbreak were the lack of adherence by military personnel to malaria prevention measures and the high level of malaria transmission at illegal gold mining sites. Anopheles marajoara was clearly implicated in malaria transmission for the first time in French Guiana. The high infection rates observed confirm that illegal gold mining sites must be considered as high level malaria transmission areas in the territory. CONCLUSIONS Illegal gold mining activities are challenging the control of malaria in French Guiana. Collaboration with neighbouring countries is necessary to take into account mobile populations such as gold miners. Malaria control strategies in the French armed forces must be adapted to P. vivax malaria and sylvatic Anopheles species.
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Affiliation(s)
- Vincent Pommier de Santi
- French Armed Forces Center for Epidemiology and Public Health (CESPA), Camp Militaire de Sainte Marthe, BP 40026, 13568, Marseille Cedex 02, France.
- Direction Interarmées du Service de Santé en Guyane, Quartier La Madeleine, BP 6019, 97306, Cayenne Cedex, French Guiana.
| | - Romain Girod
- Medical Entomology Unit, Institut Pasteur de la Guyane, 23 Avenue Pasteur, BP 6010, 97306, Cayenne Cedex, French Guiana.
| | - Marie Mura
- Institut de Recherche Biomédicale des Armées, BP 73, 91223, Brétigny sur Orge Cedex, France.
| | - Aissata Dia
- French Armed Forces Center for Epidemiology and Public Health (CESPA), Camp Militaire de Sainte Marthe, BP 40026, 13568, Marseille Cedex 02, France.
| | - Sébastien Briolant
- Direction Interarmées du Service de Santé en Guyane, Quartier La Madeleine, BP 6019, 97306, Cayenne Cedex, French Guiana.
- Institut de Recherche Biomédicale des Armées, BP 73, 91223, Brétigny sur Orge Cedex, France.
- Laboratory of Parasitology, Institut Pasteur de la Guyane, 23 Avenue Pasteur, BP 6010, 97306, Cayenne Cedex, French Guiana.
| | - Félix Djossou
- Unit of Infectious and Tropical Diseases, Andrée Rosemon Hospital, Avenue des Flamboyants, Cayenne, French Guiana.
| | - Isabelle Dusfour
- Medical Entomology Unit, Institut Pasteur de la Guyane, 23 Avenue Pasteur, BP 6010, 97306, Cayenne Cedex, French Guiana.
| | - Alexandre Mendibil
- Antenne médicale de Castres, Quartier Fayolle - 68 avenue J. Desplat, CS 50025, 81108, Castres Cedex, France.
| | - Fabrice Simon
- Department of Infectious Diseases and Tropical Medicine, Laveran Military Teaching Hospital, 34 Boulevard Laveran, BP 50, 13013, Marseille, France.
| | - Xavier Deparis
- French Armed Forces Center for Epidemiology and Public Health (CESPA), Camp Militaire de Sainte Marthe, BP 40026, 13568, Marseille Cedex 02, France.
| | - Frédéric Pagès
- Cire Océan Indien, Institut de Veille Sanitaire, 2 bis, av Georges Brassens, CS 61002, 97743, Saint-Denis Cedex 9, Réunion, France.
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Talaga S, Dejean A, Carinci R, Gaborit P, Dusfour I, Girod R. Updated Checklist of the Mosquitoes (Diptera: Culicidae) of French Guiana. JOURNAL OF MEDICAL ENTOMOLOGY 2015; 52:770-782. [PMID: 26336249 DOI: 10.1093/jme/tjv109] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2015] [Accepted: 07/01/2015] [Indexed: 06/05/2023]
Abstract
The incredible mosquito species diversity in the Neotropics can provoke major confusion during vector control programs when precise identification is needed. This is especially true in French Guiana where studies on mosquito diversity practically ceased 35 yr ago. In order to fill this gap, we propose here an updated and comprehensive checklist of the mosquitoes of French Guiana, reflecting the latest changes in classification and geographical distribution and the recognition of current or erroneous synonymies. This work was undertaken in order to help ongoing and future research on mosquitoes in a broad range of disciplines such as ecology, biogeography, and medical entomology. Thirty-two valid species cited in older lists have been removed, and 24 species have been added including 12 species (comprising two new genera and three new subgenera) reported from French Guiana for the first time. New records are from collections conducted on various phytotelmata in French Guiana and include the following species: Onirion sp. cf Harbach and Peyton (2000), Sabethes (Peytonulus) hadrognathus Harbach, Sabethes (Peytonulus) paradoxus Harbach, Sabethes (Peytonulus) soperi Lane and Cerqueira, Sabethes (Sabethinus) idiogenes Harbach, Sabethes (Sabethes) quasicyaneus Peryassú, Runchomyia (Ctenogoeldia) magna (Theobald), Wyeomyia (Caenomyiella) sp. cf Harbach and Peyton (1990), Wyeomyia (Dendromyia) ypsipola Dyar, Wyeomyia (Hystatomyia) lamellata (Bonne-Wepster and Bonne), Wyeomyia (Miamyia) oblita (Lutz), and Toxorhynchites (Lynchiella) guadeloupensis (Dyar and Knab). At this time, the mosquitoes of French Guiana are represented by 235 species distributed across 22 genera, nine tribes, and two subfamilies.
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Affiliation(s)
- Stanislas Talaga
- Université Antilles-Guyane; Écologie des Forêts de Guyane (UMR-CNRS 8172), Campus Agronomique, BP 316, 97379 Kourou cedex, France. CNRS; Écologie des Forêts de Guyane (UMR-CNRS 8172), Campus Agronomique, BP 316, 97379 Kourou cedex, France.
| | - Alain Dejean
- CNRS; Écologie des Forêts de Guyane (UMR-CNRS 8172), Campus Agronomique, BP 316, 97379 Kourou cedex, France. CNRS; Laboratoire Écologie Fonctionnelle et Environnement (UMR-CNRS 5245), 31062 Toulouse, France. Université de Toulouse; UPS, INP, Ecolab, 118 route de Narbonne, 31062 Toulouse, France
| | - Romuald Carinci
- Unité d'Entomologie Médicale, Institut Pasteur de la Guyane, 23 Avenue Pasteur, BP 6010, 97306 Cayenne cedex, France
| | - Pascal Gaborit
- Unité d'Entomologie Médicale, Institut Pasteur de la Guyane, 23 Avenue Pasteur, BP 6010, 97306 Cayenne cedex, France
| | - Isabelle Dusfour
- Unité d'Entomologie Médicale, Institut Pasteur de la Guyane, 23 Avenue Pasteur, BP 6010, 97306 Cayenne cedex, France
| | - Romain Girod
- Unité d'Entomologie Médicale, Institut Pasteur de la Guyane, 23 Avenue Pasteur, BP 6010, 97306 Cayenne cedex, France
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22
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Vezenegho SB, Carinci R, Gaborit P, Issaly J, Dusfour I, Briolant S, Girod R. Anopheles darlingi (Diptera: Culicidae) Dynamics in Relation to Meteorological Data in a Cattle Farm Located in the Coastal Region of French Guiana: Advantage of Mosquito Magnet Trap. ENVIRONMENTAL ENTOMOLOGY 2015; 44:454-462. [PMID: 26313950 DOI: 10.1093/ee/nvv053] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Accepted: 03/03/2015] [Indexed: 06/04/2023]
Abstract
Information on dynamics of anopheline mosquitoes is limited in the coastal zone of French Guiana compared with inland endemic areas. Importantly, improvement of surveillance techniques for assessing malaria transmission indicators and comprehension of impact of meteorological factors on Anopheles darlingi Root, the main malaria vector, are necessary. Anopheline mosquitoes were collected continuously during 2012 and 2013 using Mosquito Magnet traps baited with octenol and human landing catches. The two methods were compared based on trends in abundance and parity rate of An. darlingi. Impact of meteorological factors on An. darlingi density estimates was investigated using Spearman's correlation and by binomial negative regression analysis. In all, 11,928 anopheline mosquitoes were collected, and 90.7% (n = 10,815) were identified consisting of four species, with An. darlingi making up 94.9% (n = 10,264). An. darlingi specimens collected by the two methods were significantly correlated, and no difference in parity rate was observed. The abundance of this species peaked in September (dry season) and variations along the years were influenced by relative humidity, temperature, rainfall, and wind speed. Number of mosquitoes collected during peak aggression period was influenced by wind speed and rainfall. Data gathered in this study provide fundamental information about An. darlingi, which can facilitate the design of vector control strategies and construction of models for predicting malaria risk.
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Affiliation(s)
- Samuel B Vezenegho
- Medical Entomology Unit, Institut Pasteur de la Guyane, 23 Avenue Pasteur, BP 6010, 97306 Cayenne Cedex, French Guiana.
| | - Romuald Carinci
- Medical Entomology Unit, Institut Pasteur de la Guyane, 23 Avenue Pasteur, BP 6010, 97306 Cayenne Cedex, French Guiana
| | - Pascal Gaborit
- Medical Entomology Unit, Institut Pasteur de la Guyane, 23 Avenue Pasteur, BP 6010, 97306 Cayenne Cedex, French Guiana
| | - Jean Issaly
- Medical Entomology Unit, Institut Pasteur de la Guyane, 23 Avenue Pasteur, BP 6010, 97306 Cayenne Cedex, French Guiana
| | - Isabelle Dusfour
- Medical Entomology Unit, Institut Pasteur de la Guyane, 23 Avenue Pasteur, BP 6010, 97306 Cayenne Cedex, French Guiana
| | - Sebastien Briolant
- Direction Interarmées du Service de Santé en Guyane, Quartier La Madeleine, BP 6019, 97306 Cayenne Cedex, French Guiana. Laboratory of Parasitology, Institut Pasteur de la Guyane, 23 Avenue Pasteur, BP 6010, 97306 Cayenne Cedex, French Guiana. Institut de Recherche Biomédicale des Armées, BP 73, 91223 Brétigny sur Orge cedex, France
| | - Romain Girod
- Medical Entomology Unit, Institut Pasteur de la Guyane, 23 Avenue Pasteur, BP 6010, 97306 Cayenne Cedex, French Guiana
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23
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Vezenegho SB, Adde A, Gaborit P, Carinci R, Issaly J, Pommier de Santi V, Dusfour I, Briolant S, Girod R. Mosquito magnet® liberty plus trap baited with octenol confirmed best candidate for Anopheles surveillance and proved promising in predicting risk of malaria transmission in French Guiana. Malar J 2014; 13:384. [PMID: 25260354 PMCID: PMC4193128 DOI: 10.1186/1475-2875-13-384] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2014] [Accepted: 09/14/2014] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND In French Guiana, Mosquito Magnet® Liberty Plus trap baited with octenol (MMoct) has been proposed for sampling Anopheles darlingi after comparison with CDC light trap and Human landing catch (HLC). However, other available lures were not tested. The current study compared MMoct and MM baited with Lurex™ (MMlur) to HLC, and analysed entomological data from MMoct collection with malaria cases to facilitate malaria surveillance. METHODS Two independent experiments were conducted during 2012 and 2013 in Saint-Georges town, French Guiana. The first experiment used Latin square design to compare MMoct and MMlur to HLC between 18:30 to 22:30 and 05:00 to 07:00. Parity rate was determined for An. darlingi from each sampling system. In the second experiment, a 24:00 hour collection was done for four consecutive days during the first week of each month and every four days for the rest of the month using MMoct. Portion of the 24 hour collection was dissected for parity rate. All anophelines were screened for Plasmodium infection by PCR. Data for number of malaria cases was analysed for association with density of An. darlingi. RESULTS In the first experiment, 3,721 anopheline mosquitoes were collected over 21 nights. Of these, 95.7% was identified morphologically to five species and An. darlingi contributed 98.4%, mainly from HLC (75.1%, CI 95% [73.2-77.0]) than MMoct (14.1%, CI 95% [12.6-15.7]) and MMlur (10.8%, CI 95% [9.4-12.2]). Species richness was highest in HLC meanwhile species diversity index was greatest in MMoct. MMoct collected more parous An. darlingi than HLC (p<0.0001) and MMlur (p=0.0021). The second experiment amounted to 2035 females, 60.8% belonging to 10 species. Anopheles darlingi constituted 85.0% of the species and had parity rate of 52.3%. Specimens were uninfected with Plasmodium. Density of An. darlingi best correlated with malaria cases observed six weeks later (p=0.0016; r=0.4774). CONCLUSION Though MMoct and MMlur performed well in sampling An. darlingi, MMoct captured more species and, therefore, would be useful for surveillance. Even if it collected mostly parous mosquitoes, MMoct proved useful in collecting entomological data required for predicting malaria emergence. It is a potential replacement for HLC.
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Affiliation(s)
- Samuel B Vezenegho
- />Medical Entomology Unit, Institut Pasteur de la Guyane, 23 Avenue Pasteur, BP 6010, 97306 Cayenne Cedex, French Guiana
| | - Antoine Adde
- />Medical Entomology Unit, Institut Pasteur de la Guyane, 23 Avenue Pasteur, BP 6010, 97306 Cayenne Cedex, French Guiana
- />Epidémiologie des parasitoses tropicales (EPaT) Team (EA 3593), UFR de Médecine, Université des Antilles et de la Guyane, Campus Saint-Denis, Avenue d’Estrées, 97306 Cayenne cedex, French Guiana
| | - Pascal Gaborit
- />Medical Entomology Unit, Institut Pasteur de la Guyane, 23 Avenue Pasteur, BP 6010, 97306 Cayenne Cedex, French Guiana
| | - Romuald Carinci
- />Medical Entomology Unit, Institut Pasteur de la Guyane, 23 Avenue Pasteur, BP 6010, 97306 Cayenne Cedex, French Guiana
| | - Jean Issaly
- />Medical Entomology Unit, Institut Pasteur de la Guyane, 23 Avenue Pasteur, BP 6010, 97306 Cayenne Cedex, French Guiana
| | - Vincent Pommier de Santi
- />Direction Interarmées du Service de Santé en Guyane, Quartier La Madeleine, BP 6019, 97306 Cayenne Cedex, French Guiana
| | - Isabelle Dusfour
- />Medical Entomology Unit, Institut Pasteur de la Guyane, 23 Avenue Pasteur, BP 6010, 97306 Cayenne Cedex, French Guiana
| | - Sébastien Briolant
- />Direction Interarmées du Service de Santé en Guyane, Quartier La Madeleine, BP 6019, 97306 Cayenne Cedex, French Guiana
- />Laboratory of Parasitology, Institut Pasteur de la Guyane, 23 Avenue Pasteur, BP 6010, 97306 Cayenne Cedex, French Guiana
- />Institut de Recherche Biomédicale des Armées, BP 73, 91223 Brétigny sur Orge cedex, France
| | - Romain Girod
- />Medical Entomology Unit, Institut Pasteur de la Guyane, 23 Avenue Pasteur, BP 6010, 97306 Cayenne Cedex, French Guiana
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Musset L, Pelleau S, Girod R, Ardillon V, Carvalho L, Dusfour I, Gomes MSM, Djossou F, Legrand E. Malaria on the Guiana Shield: a review of the situation in French Guiana. Mem Inst Oswaldo Cruz 2014; 109:525-33. [PMID: 25184998 PMCID: PMC4156445 DOI: 10.1590/0074-0276140031] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2014] [Accepted: 06/09/2014] [Indexed: 01/02/2023] Open
Abstract
In a climate of growing concern that Plasmodium falciparum may be developing a drug resistance to artemisinin derivatives in the Guiana Shield, this review details our current knowledge of malaria and control strategy in one part of the Shield, French Guiana. Local epidemiology, test-treat-track strategy, the state of parasite drug resistance and vector control measures are summarised. Current issues in terms of mobile populations and legislative limitations are also discussed.
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Affiliation(s)
- Lise Musset
- Laboratoire de Parasitologie, Centre National de Référence du Paludisme - Région Antilles-Guyane, WHO Collaborating Center for Surveillance of Antimalarial Drug Resistance, Cayenne, French Guiana
| | - Stéphane Pelleau
- Laboratoire de Parasitologie, Centre National de Référence du Paludisme - Région Antilles-Guyane, WHO Collaborating Center for Surveillance of Antimalarial Drug Resistance, Cayenne, French Guiana
| | - Romain Girod
- Unité d?Entomologie Médicale, Institut Pasteur de la Guyane, Cayenne, French Guiana
| | - Vanessa Ardillon
- Cellule de l?Institut de Veille Sanitaire en Région Antilles-Guyane, Cayenne, French Guiana
| | - Luisiane Carvalho
- Cellule de l?Institut de Veille Sanitaire en Région Antilles-Guyane, Cayenne, French Guiana
| | - Isabelle Dusfour
- Unité d?Entomologie Médicale, Institut Pasteur de la Guyane, Cayenne, French Guiana
| | | | - Félix Djossou
- Unité des Maladies Infectieuses et Tropicales, Centre Hospitalier Andrée Rosemon, Cayenne, French Guiana
| | - Eric Legrand
- Laboratoire de Parasitologie, Centre National de Référence du Paludisme - Région Antilles-Guyane, WHO Collaborating Center for Surveillance of Antimalarial Drug Resistance, Cayenne, French Guiana
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Lima JBP, Rosa-Freitas MG, Rodovalho CM, Santos F, Lourenço-de-Oliveira R. Is there an efficient trap or collection method for sampling Anopheles darlingi and other malaria vectors that can describe the essential parameters affecting transmission dynamics as effectively as human landing catches? - A Review. Mem Inst Oswaldo Cruz 2014; 109:685-705. [PMID: 25185008 PMCID: PMC4156462 DOI: 10.1590/0074-0276140134] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2014] [Accepted: 07/09/2014] [Indexed: 11/24/2022] Open
Abstract
Distribution, abundance, feeding behaviour, host preference, parity status and human-biting and infection rates are among the medical entomological parameters evaluated when determining the vector capacity of mosquito species. To evaluate these parameters, mosquitoes must be collected using an appropriate method. Malaria is primarily transmitted by anthropophilic and synanthropic anophelines. Thus, collection methods must result in the identification of the anthropophilic species and efficiently evaluate the parameters involved in malaria transmission dynamics. Consequently, human landing catches would be the most appropriate method if not for their inherent risk. The choice of alternative anopheline collection methods, such as traps, must consider their effectiveness in reproducing the efficiency of human attraction. Collection methods lure mosquitoes by using a mixture of olfactory, visual and thermal cues. Here, we reviewed, classified and compared the efficiency of anopheline collection methods, with an emphasis on Neotropical anthropophilic species, especially Anopheles darlingi, in distinct malaria epidemiological conditions in Brazil.
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Affiliation(s)
- José Bento Pereira Lima
- Laboratório de Fisiologia e Controle de Artrópodes Vetores
- Laboratório de Entomologia, Instituto de Biologia do Exército, Rio de
Janeiro, RJ, Brasil
- Fundação de Medicina Tropical Doutor Heitor Vieira Dourado, Manaus, AM,
Brasil
| | - Maria Goreti Rosa-Freitas
- Laboratório de Transmissores de Hematozoários, Instituto Oswaldo
Cruz-Fiocruz, Rio de Janeiro, RJ, Brasil
| | - Cynara Melo Rodovalho
- Laboratório de Fisiologia e Controle de Artrópodes Vetores
- Laboratório de Entomologia, Instituto de Biologia do Exército, Rio de
Janeiro, RJ, Brasil
| | - Fátima Santos
- Odebrecht Angola - Projectos e Serviços Ltda, Luanda, Angola
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Dusfour I, Carinci R, Issaly J, Gaborit P, Girod R. A survey of adult anophelines in French Guiana: enhanced descriptions of species distribution and biting responses. JOURNAL OF VECTOR ECOLOGY : JOURNAL OF THE SOCIETY FOR VECTOR ECOLOGY 2013; 38:203-209. [PMID: 24581346 DOI: 10.1111/j.1948-7134.2013.12031.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2012] [Accepted: 04/12/2013] [Indexed: 06/03/2023]
Abstract
In French Guiana, Anopheles darlingi is considered the main malaria vector. However, several reports have hypothesized the implication of other anopheline species in malaria transmission for the territory. Data on the ecology of these other potential vectors is rare or even unexplored in French Guiana. The aim of this study was to describe the biting habits of several anopheline species in multiple localities in French Guiana. Six sampling sites yielded 1,083 anopheline adults. Results indicated the presence of An. darlingi in all study locations and it was the only species to be collected inside villages. Other anophelines collected included An. aquasalis, An. braziliensis, An. intermedius, An. mediopunctatus, An. nuneztovari, An. oswaldoi, and An. triannulatus, all of which were associated with open areas and forests. The environment and time, at which biting behavior was recorded, varied for each species. It was noted that An. oswaldoi showed a daytime rhythm in open areas. This study is the first to report on the biting habits of a range of anophelines in French Guiana that may play a role in malaria transmission. This information is vital to fully describe the risk of malaria transmission and thereby design appropriate vector control measures and malaria prevention programs.
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Affiliation(s)
- Isabelle Dusfour
- Institut Pasteur de la Guyane, Unité d'entomologie médicale, B.P. 6010, 97306, Cayenne Cedex, French Guiana.
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Roux E, Gaborit P, Romaña CA, Girod R, Dessay N, Dusfour I. Objective sampling design in a highly heterogeneous landscape - characterizing environmental determinants of malaria vector distribution in French Guiana, in the Amazonian region. BMC Ecol 2013; 13:45. [PMID: 24289184 PMCID: PMC4219608 DOI: 10.1186/1472-6785-13-45] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2013] [Accepted: 11/25/2013] [Indexed: 11/10/2022] Open
Abstract
Background Sampling design is a key issue when establishing species inventories and characterizing habitats within highly heterogeneous landscapes. Sampling efforts in such environments may be constrained and many field studies only rely on subjective and/or qualitative approaches to design collection strategy. The region of Cacao, in French Guiana, provides an excellent study site to understand the presence and abundance of Anopheles mosquitoes, their species dynamics and the transmission risk of malaria across various environments. We propose an objective methodology to define a stratified sampling design. Following thorough environmental characterization, a factorial analysis of mixed groups allows the data to be reduced and non-collinear principal components to be identified while balancing the influences of the different environmental factors. Such components defined new variables which could then be used in a robust k-means clustering procedure. Then, we identified five clusters that corresponded to our sampling strata and selected sampling sites in each stratum. Results We validated our method by comparing the species overlap of entomological collections from selected sites and the environmental similarities of the same sites. The Morisita index was significantly correlated (Pearson linear correlation) with environmental similarity based on i) the balanced environmental variable groups considered jointly (p = 0.001) and ii) land cover/use (p-value << 0.001). The Jaccard index was significantly correlated with land cover/use-based environmental similarity (p-value = 0.001). Conclusions The results validate our sampling approach. Land cover/use maps (based on high spatial resolution satellite images) were shown to be particularly useful when studying the presence, density and diversity of Anopheles mosquitoes at local scales and in very heterogeneous landscapes.
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Affiliation(s)
- Emmanuel Roux
- ESPACE-DEV, UMR228 IRD/UM2/UR/UAG, Institut de Recherche pour le Développement, Maison de la Télédétection, 500 rue Jean-François Breton, 34093 Montpellier Cedex 5, France.
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Dusfour I, Jarjaval F, Gaborit P, Mura M, Girod R, Pagès F. Confirmation of the occurrence of Anopheles (Nyssorhynchus) marajoara in French Guiana. JOURNAL OF THE AMERICAN MOSQUITO CONTROL ASSOCIATION 2012; 28:309-311. [PMID: 23393754 DOI: 10.2987/12-6248r.1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Throughout the early entomological campaigns in French Guiana (1900-1945), the presence of members of the Anopheles albitarsis Complex was reported in many places across the territory. However, since then no specimen has been caught despite many entomological studies conducted on the littoral and along the main rivers in places where malaria was endemic. We report here the 1st catches in the modern period of specimens of the An. albitarsis Complex in the deep rainforest. During a military intervention, Mosquito-Magnet traps and the Centers for Disease Control and Prevention light traps were used to sample malaria vectors in an illegal gold mining area and a permanent checkpoint. Members of the An. albitarsis caught were molecularly identified using DNA barcoding. In the 2 sites where An. albitarsis s.l. were caught, all specimens were An. marajoara. As An. marajoara is considered as an important malaria vector in Amazonia, the highest interest must be shown to this species in French Guiana.
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Affiliation(s)
- Isabelle Dusfour
- Institut Pasteur de la Guyane, Unité d'Entomologie Médicale, 23 avenue Pasteur, BP6010, 97306 Cayenne cedex, French Guiana
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