1
|
de Barcelos BR, Coelho NGSS, Santos MMB, Vale FL, Teixeira ALC, Pereira e Souza LM, Zeringóta V, de Oliveira Monteiro CM, Eugenio CUO, Obara MT. Do Commercial Insect Repellents Provide Protection against the Tick Amblyomma sculptum (Acari: Ixodidae)? Pathogens 2023; 13:9. [PMID: 38276155 PMCID: PMC10820340 DOI: 10.3390/pathogens13010009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 11/27/2023] [Accepted: 11/28/2023] [Indexed: 01/27/2024] Open
Abstract
Amblyomma sculptum is a species of public health interest because it is associated with the transmission of the bacteria that causes Brazilian Spotted Fever (BSF). The use of repellents on humans is a prophylactic measure widely used to provide protection against a series of arthropod vectors, including mosquitoes and ticks. However, in Brazil, the effectiveness of commercial repellents against A. sculptum is little known. Therefore, it is necessary to carry out specific studies to evaluate the repellency of these commercial products, registered for use against mosquitoes, against the star tick. The main goal of the present work was to evaluate the effectiveness of six commercial repellents against A. sculptum. Unfed nymphs, aged between two and eight weeks, were tested against products based on DEET (OFF!® and Repelex®), Icaridin (Exposis® and SBP®), and IR3535 (Johnsons and Henlau). Three bioassays were conducted to evaluate tick behavior: (i) filter paper, (ii) fingertip, and (iii) field. All bases tested showed high repellent activity, differing significantly (p < 0.05) from the control. It was observed the formulation with DEET resulted in the best results in the filter paper bioassay. In the fingertip bioassay, the DEET base repelled a greater number of ticks compared to Icaridin. In the field bioassay, there was no significant difference between the Icaridin base and DEET, and both formulations differed from the control (p < 0.05). The six formulations tested showed significant percentages of repellency against ticks; however, for the fingertip and field bioassays, the products OFF!®, Repelex®, and Exposis® were tested as they showed better performance in the filter paper test. OFF!® showed the best percentage of repellency (100%), followed by Repelex® (96.8%), and Exposis® (93.1%), considering the two-hour period of the bioassay-field-test. Proving the effectiveness of repellents on the market against A. sculptum presented in this study is crucial, since this is the main ectoparasite of humans that can transmit Rickettsia rickettsii when infected. The effectiveness of commercial insect repellents against other tick species that parasitize humans can also be explored.
Collapse
Affiliation(s)
- Beatriz Rodrigues de Barcelos
- Postgraduate Program in Health Sciences and Technologies, University of Brasilia, Metropolitan Center, Conjunto A, Lot 01, Federal District, Brasilia 72220-275, Brazil
| | | | - Mayara Macedo Barrozo Santos
- Postgraduate Program in Animal Science, Federal University of Goiás, Nova Veneza, km 8, Samambaia Campus, Goiania 74001-970, Brazil; (M.M.B.S.); (F.L.V.); (A.L.C.T.); (L.M.P.e.S.); (C.M.d.O.M.)
| | - Francisca Letícia Vale
- Postgraduate Program in Animal Science, Federal University of Goiás, Nova Veneza, km 8, Samambaia Campus, Goiania 74001-970, Brazil; (M.M.B.S.); (F.L.V.); (A.L.C.T.); (L.M.P.e.S.); (C.M.d.O.M.)
| | - Ana Lúcia Coutinho Teixeira
- Postgraduate Program in Animal Science, Federal University of Goiás, Nova Veneza, km 8, Samambaia Campus, Goiania 74001-970, Brazil; (M.M.B.S.); (F.L.V.); (A.L.C.T.); (L.M.P.e.S.); (C.M.d.O.M.)
| | - Lainny Martins Pereira e Souza
- Postgraduate Program in Animal Science, Federal University of Goiás, Nova Veneza, km 8, Samambaia Campus, Goiania 74001-970, Brazil; (M.M.B.S.); (F.L.V.); (A.L.C.T.); (L.M.P.e.S.); (C.M.d.O.M.)
| | - Viviane Zeringóta
- Institute of Tropical Pathology and Public Health, Federal University of Goias, Goiania 74605-220, Brazil;
| | - Caio Márcio de Oliveira Monteiro
- Postgraduate Program in Animal Science, Federal University of Goiás, Nova Veneza, km 8, Samambaia Campus, Goiania 74001-970, Brazil; (M.M.B.S.); (F.L.V.); (A.L.C.T.); (L.M.P.e.S.); (C.M.d.O.M.)
| | | | - Marcos Takashi Obara
- Postgraduate Program in Health Sciences and Technologies, University of Brasilia, Metropolitan Center, Conjunto A, Lot 01, Federal District, Brasilia 72220-275, Brazil
| |
Collapse
|
2
|
Keve G, Csörgő T, Benke A, Huber A, Mórocz A, Németh Á, Kalocsa B, Tamás EA, Gyurácz J, Kiss O, Kováts D, Sándor AD, Karcza Z, Hornok S. Ornithological and molecular evidence of a reproducing Hyalomma rufipes population under continental climate in Europe. Front Vet Sci 2023; 10:1147186. [PMID: 37035818 PMCID: PMC10073722 DOI: 10.3389/fvets.2023.1147186] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 02/22/2023] [Indexed: 04/11/2023] Open
Abstract
Reports on adult Hyalomma ticks in certain regions of the Carpathian Basin date back to the 19th century. These ticks were thought to emerge from nymphs dropping from birds, then molting to adults. Although the role of migratory birds in carrying ticks of this genus is known from all parts of Europe, in most countries no contemporaneous multiregional surveillance of bird-associated ticks was reported which could allow the recognition of hotspots in this context. From 38 passeriform bird species 956 ixodid ticks were collected at seven locations in Hungary. Tick species were identified as Ixodes ricinus (n = 598), Ixodes frontalis (n = 18), Ixodes lividus (n = 6), Haemaphysalis concinna (n = 321), and D. reticulatus (n = 1). All 12 Hyalomma sp. ticks (11 engorged nymphs and 1 unengorged larva) were identified as H. rufipes based on three mitochondrial markers. This species was only found in the Transdanubian region and along its southeastern border. The Common Blackbird and the European Robin were the two main hosts of I. ricinus and I. frontalis, whereas H. concinna was almost exclusively collected form long-distance migrants. The predominant hosts of H. rufipes were reed-associated bird species, the Sedge Warbler and the Bearded Reedling, both in their nesting period. This study provides ornithological explanation for the regional, century-long presence of adult Hyalomma ticks under continental climate in the Transdanubian Region of the Carpathian Basin. More importantly, the autochthonous occurrence of a H. rufipes population was revealed for the first time in Europe, based on the following observations: (1) the bird species infested with H. rufipes are not known to migrate during their nesting period; (2) one larva was not yet engorged; (3) the larva and the nymphs must have belonged to different local generations; and (4) all H. rufipes found in the relevant location were identical in their haplotypes based on three maternally inherited mitochondrial markers, probably reflecting founder effect. This study also demonstrated regional and temporal differences in tick species carried by birds.
Collapse
Affiliation(s)
- Gergő Keve
- Department of Parasitology and Zoology, University of Veterinary Medicine, Budapest, Hungary
- ELKH-ÁTE Climate Change: New Blood-Sucking Parasites and Vector-Borne Pathogens Research Group, Budapest, Hungary
- *Correspondence: Gergő Keve
| | - Tibor Csörgő
- Department of Anatomy, Cell- and Developmental Biology, Eötvös Loránd University, Budapest, Hungary
- Ócsa Bird Ringing Station, Ócsa, Hungary
- BirdLife Hungary, Budapest, Hungary
| | - Anikó Benke
- BirdLife Hungary, Budapest, Hungary
- Fenékpuszta Bird Ringing Station, Keszthely, Hungary
| | - Attila Huber
- BirdLife Hungary, Budapest, Hungary
- Aggtelek National Park Directorate, Jósvafő, Hungary
| | - Attila Mórocz
- BirdLife Hungary, Budapest, Hungary
- Duna-Dráva National Park Directorate, Pécs, Hungary
| | - Ákos Németh
- BirdLife Hungary, Budapest, Hungary
- Kiskunság National Park Directorate, Kecskemét, Hungary
- Kiskunság Bird Protection Association, Izsák, Hungary
| | | | - Enikő Anna Tamás
- BirdLife Hungary, Budapest, Hungary
- Faculty of Water Sciences, University of Public Service, Baja, Hungary
| | - József Gyurácz
- BirdLife Hungary, Budapest, Hungary
- Department of Biology, Eötvös Loránd University, Savaria, Szombathely, Hungary
| | - Orsolya Kiss
- BirdLife Hungary, Budapest, Hungary
- Faculty of Agriculture, Institute of Animal Sciences and Wildlife Management, University of Szeged, Hódmezővásárhely, Hungary
| | - Dávid Kováts
- Ócsa Bird Ringing Station, Ócsa, Hungary
- BirdLife Hungary, Budapest, Hungary
- Hungarian Biodiversity Research Society, Budapest, Hungary
| | - Attila D. Sándor
- Department of Parasitology and Zoology, University of Veterinary Medicine, Budapest, Hungary
- ELKH-ÁTE Climate Change: New Blood-Sucking Parasites and Vector-Borne Pathogens Research Group, Budapest, Hungary
- Department of Parasitology and Parasitic Diseases, University of Agricultural Sciences and Veterinary Medicine, Cluj-Napoca, Romania
| | | | - Sándor Hornok
- Department of Parasitology and Zoology, University of Veterinary Medicine, Budapest, Hungary
- ELKH-ÁTE Climate Change: New Blood-Sucking Parasites and Vector-Borne Pathogens Research Group, Budapest, Hungary
| |
Collapse
|
3
|
On the way between Africa and Europe: molecular taxonomy of ticks collected from birds in Malta. Ticks Tick Borne Dis 2022; 13:102001. [DOI: 10.1016/j.ttbdis.2022.102001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 05/26/2022] [Accepted: 06/30/2022] [Indexed: 11/24/2022]
|
4
|
Amblyomma aureolatum Genetic Diversity and Population Dynamics Are Not Related to Spotted Fever Epidemiological Scenarios in Brazil. Pathogens 2021; 10:pathogens10091146. [PMID: 34578178 PMCID: PMC8469259 DOI: 10.3390/pathogens10091146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Revised: 08/20/2021] [Accepted: 08/22/2021] [Indexed: 11/16/2022] Open
Abstract
Regional differences in tick-borne disease epidemiology may be related to biological variations between vector populations. Amblyomma aureolatum (Ixodida: Ixodidae), a neotropical tick, is known from several regions in Brazil. However, only in the metropolitan area of São Paulo (SP) state are there studies that establish its role as a vector of a pathogenic rickettsia (Rickettsia rickettsii). The aim of the study was to analyze the genetic diversity, population dynamics, and rickettsia infection in A. aureolatum populations from different spotted fever scenarios in Brazil. Samples were subjected to DNA extraction, amplification and sequencing of 12S rDNA, cytochrome oxidase subunit II and D-loop mitochondrial markers for tick population analyses, and gltA, htrA, ompA, and ompB genes for rickettsia researches. Of the 7–17 tick haplotypes identified, 5–13 were exclusive to each population and 2–12 for each epidemiological scenario, as well as three haplotypes shared by all populations. Amblyomma aureolatum populations are expanding, and do not appear to be genetically structured vis-a-vis the different epidemiological scenarios studied. Rickettsia bellii (in SP) and Rickettsia felis (in Santa Catarina) were identified as infecting A. aureolatum. No relationship between tick haplotypes and rickettsia types were observed.
Collapse
|
5
|
Dantas-Torres F, Fernandes Martins T, Muñoz-Leal S, Onofrio VC, Barros-Battesti DM. Ticks (Ixodida: Argasidae, Ixodidae) of Brazil: Updated species checklist and taxonomic keys. Ticks Tick Borne Dis 2019; 10:101252. [PMID: 31255534 DOI: 10.1016/j.ttbdis.2019.06.012] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2018] [Revised: 04/19/2019] [Accepted: 06/15/2019] [Indexed: 02/08/2023]
Abstract
Ticks are ectoparasites of great medical and veterinary significance in the neotropical region. In Brazil, they are responsible for enormous economic losses to the livestock industry and also for considerable morbidity and mortality in companion animals and humans. Therefore, recognizing the identity of a given species is important, not only from a biodiversity perspective, but also from the medical and veterinary standpoints. The Brazilian tick fauna is one of the most diverse and well-studied in the neotropical region. In the past few years, several new species were discovered and/or recorded for the first time in this country. The main objectives of this study were to provide an updated list of tick species occurring in Brazil and taxonomic keys for their identification. The updated list of Brazilian ticks includes 70 species, 47 in the family Ixodidae and 23 in the family Argasidae. The genera Amblyomma (32 spp.) and Ornithodoros (18 spp.) are the most representative. Updated taxonomic keys for the identification of ticks of Brazil are provided. Finally, the medico-veterinary significance of ticks occurring in this country is briefly discussed.
Collapse
Affiliation(s)
- Filipe Dantas-Torres
- Department of Immunology, Aggeu Magalhães Institute, Oswaldo Cruz Foundation (Fiocruz), Recife, PE, Brazil.
| | - Thiago Fernandes Martins
- Department of Preventive Veterinary Medicine and Animal Health, Faculty of Veterinary Medicine, University of São Paulo, SP, Brazil
| | - Sebastián Muñoz-Leal
- Department of Preventive Veterinary Medicine and Animal Health, Faculty of Veterinary Medicine, University of São Paulo, SP, Brazil
| | - Valeria Castilho Onofrio
- Special Laboratory of Zoological Collections, Butantan Institute, São Paulo, Brazil; Master's Program in Veterinary Medicine and Animal Welfare, Santo Amaro University, SP, Brazil
| | | |
Collapse
|
6
|
Bitencourth K, Amorim M, de Oliveira SV, Voloch CM, Gazêta GS. Genetic diversity, population structure and rickettsias in Amblyomma ovale in areas of epidemiological interest for spotted fever in Brazil. MEDICAL AND VETERINARY ENTOMOLOGY 2019; 33:256-268. [PMID: 30746741 DOI: 10.1111/mve.12363] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2018] [Revised: 11/22/2018] [Accepted: 12/03/2018] [Indexed: 06/09/2023]
Abstract
Amblyomma ovale (Ixodida: Ixodidae) Koch, 1844 is widely-reported in the neotropical region and is the main vector in the epidemic cycle of Rickettsia parkeri strain Atlantic rainforest, a bioagent of a milder variety of spotted fever (SF). Because species with wide geographical distributions are known to exhibit variations that influence their vectorial capacity, the present study aimed to analyze genetic diversity and rickettsia infection of A. ovale collected during the investigation and surveillance of SF cases in the Cerrado and Atlantic rainforest (ARF) Brazilian biomes. Samples had their DNA extracted, amplified and sequenced for 16S rDNA, 12S rDNA, cytochrome oxidase subunit II and D-loop markers for tick analyses, as well as the gltA, htrA, ompA and ompB genes for rickettsia detection. Between 11 and 33 A. ovale haplotypes were identified, all of them exclusive to areas within individual analyzed biome areas. The A. ovale populations appeared to be structured, with Cluster I restricted to Cerrado + ARF isolated in Caatinga and Cluster II to ARF continuous area. Rickettsia bellii, R. parkeri strain Atlantic rainforest (first report for Goiás state, Cerrado), Rickettsia asemboensis (first record in A. ovale for Brazil) and Rickettsia felis (first detection in this ixodid) were identified. A. ovale clusters were not associated with rickettsia types.
Collapse
Affiliation(s)
- K Bitencourth
- Laboratório de Referência Nacional em Vetores das Riquetsioses, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
- Programa de Pós-Graduação em Biodiversidade e Saúde, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - M Amorim
- Laboratório de Referência Nacional em Vetores das Riquetsioses, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - S V de Oliveira
- Secretaria de Vigilância em Saúde, Ministério da Saúde, Unidade Técnica de Vigilância de Zoonoses, Brasília, Brazil
- Faculdade de Medicina, Universidade Federal de Uberlândia, Uberlândia, Brazil
| | - C M Voloch
- Laboratório de Biologia Evolutiva Teórica e Aplicada, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - G S Gazêta
- Laboratório de Referência Nacional em Vetores das Riquetsioses, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
- Programa de Pós-Graduação em Biodiversidade e Saúde, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| |
Collapse
|
7
|
Machado IB, Bitencourth K, Cardoso KM, Oliveira SV, Santalucia M, Marques SFF, Amorim M, GazêTa GS. Diversity of rickettsiae and potential vectors of spotted fever in an area of epidemiological interest in the Cerrado biome, midwestern Brazil. MEDICAL AND VETERINARY ENTOMOLOGY 2018; 32:481-489. [PMID: 29972600 DOI: 10.1111/mve.12315] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Revised: 04/26/2018] [Accepted: 05/11/2018] [Indexed: 06/08/2023]
Abstract
The Brazilian state of Goiás, untouched by spotted fever (SF) until 2012, has subsequently reported cases of the disease in several regions. This study aimed to survey the diversity of potential vectors and rickettsia in areas of Goiás under environmental surveillance or case investigation for SF. Collected specimens were assayed with molecular biology technology using DNA extraction, amplification and sequencing of fragments of the genes gltA, ompA, ompB and sca4 to detect rickettsia in ticks and fleas. Amplification of cytochrome oxidase subunit II and 16S rRNA was performed to assist tick identification. Rickettsia felis (Rickettsiales: Rickettsiaceae) was found in Ctenocephalides felis (Bouché, 1835) (Siphonaptera: Pulicidae). Rickettsia bellii was found in Amblyomma rotundatum Koch, 1844 (Ixodida: Ixodidae) and in Amblyomma cajennense sensu lato. Rickettsia sp. strain NOD was found in Amblyomma nodosum Neumann, 1899. Of the Amblyomma cajennense complex, Amblyomma sculptum Berlese, 1888 was confirmed in the northern, northeast, midwest and southeast regions of Goiás, whereas Amblyomma cajennense sensu stricto (Fabricius, 1787) was found only in the northern region of the state. Amblyomma dubitatum Neumann, 1899 associated with a species of the A. cajennense complex was the most common epidemiological finding, although Rickettsia rickettsii was not detected. This is the first report of Rickettsia sp. strain NOD in Goiás.
Collapse
Affiliation(s)
- I B Machado
- Programa de Pós-Graduação em Biodiversidade e Saúde, Fundação Oswaldo Cruz, Rio de Janeiro, RJ, Brazil
- Laboratório de Referência Nacional em Vetores das Riquetsioses, Fundação Oswaldo Cruz, Rio de Janeiro, RJ, Brazil
| | - K Bitencourth
- Laboratório de Referência Nacional em Vetores das Riquetsioses, Fundação Oswaldo Cruz, Rio de Janeiro, RJ, Brazil
| | - K M Cardoso
- Laboratório de Referência Nacional em Vetores das Riquetsioses, Fundação Oswaldo Cruz, Rio de Janeiro, RJ, Brazil
| | - S V Oliveira
- Secretaria de Vigilância em Saúde, Ministério da Saúde, Unidade Técnica de Vigilância de Zoonoses, Brasilia, DF, Brazil
| | - M Santalucia
- Secretaria Estadual de Saúde do Estado de Goiás, Goiânia, GO, Brazil
| | - S F F Marques
- Secretaria Estadual de Saúde do Estado de Goiás, Goiânia, GO, Brazil
| | - M Amorim
- Laboratório de Referência Nacional em Vetores das Riquetsioses, Fundação Oswaldo Cruz, Rio de Janeiro, RJ, Brazil
| | - G S GazêTa
- Programa de Pós-Graduação em Biodiversidade e Saúde, Fundação Oswaldo Cruz, Rio de Janeiro, RJ, Brazil
- Laboratório de Referência Nacional em Vetores das Riquetsioses, Fundação Oswaldo Cruz, Rio de Janeiro, RJ, Brazil
| |
Collapse
|
8
|
Bitencourth K, Amorim M, DE Oliveira SV, Caetano RL, Voloch CM, Gazêta GS. Amblyomma sculptum: genetic diversity and rickettsias in the Brazilian Cerrado biome. MEDICAL AND VETERINARY ENTOMOLOGY 2017; 31:427-437. [PMID: 28752684 DOI: 10.1111/mve.12249] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2017] [Revised: 03/19/2017] [Accepted: 04/10/2017] [Indexed: 06/07/2023]
Abstract
Amblyomma sculptum (Ixodida: Ixodidae) Berlese, 1888 is the most important tick vector in Brazil, transmitting the bioagent of the most severe form of spotted fever (SF) in part of the Cerrado (in the states of Minas Gerais and São Paulo). In another part of the Cerrado (Central-West region of Brazil), a milder form of SF has been recorded. However, neither the rickettsia nor the vector involved have been characterized. The aim of the current study was to analyse genetic variation and the presence of rickettsia in A. sculptum in Cerrado, from silent areas and with the milder form of SF. Samples were subjected to DNA extraction, amplification and sequencing of 12S rDNA, cytochrome oxidase subunit II and D-loop mitochondrial genes (for tick population analyses), and gltA, htrA, ompA and gene D (sca4) genes for rickettsia researches. Exclusive haplotypes with low frequencies, high haplotype diversity and low nucleotide diversity, star-shaped networks and significant results in neutrality tests indicate A. sculptum population expansions in some areas. Rickettsia amblyommatis, Candidatus Rickettsia andeanae and Rickettsia felis were detected. The A. sculptum diversity is not geographically, or biome delimited, pointing to a different potential in vector capacity, possibly associated with differing tick genetic profiles.
Collapse
Affiliation(s)
- K Bitencourth
- Laboratório de Referência Nacional em Vetores das Riquetsioses, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
- Programa de Pós-Graduação em Biodiversidade e Saúde, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - M Amorim
- Laboratório de Referência Nacional em Vetores das Riquetsioses, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - S V DE Oliveira
- Secretaria de Vigilância em Saúde, Ministério da Saúde, Unidade Técnica de Vigilância de Zoonoses, Brasília, Brazil
| | - R L Caetano
- Laboratório de Referência Nacional em Vetores das Riquetsioses, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - C M Voloch
- Laboratório de Biologia Evolutiva Teórica e Aplicada, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - G S Gazêta
- Laboratório de Referência Nacional em Vetores das Riquetsioses, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
- Programa de Pós-Graduação em Biodiversidade e Saúde, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| |
Collapse
|
9
|
Caetano RL, Vizzoni VF, Bitencourth K, Carriço C, Sato TP, Pinto ZT, De Oliveira SV, Amorim M, Voloch CM, Gazeta GS. Ultrastructural Morphology and Molecular Analyses of Tropical and Temperate "Species" of Rhipicephalus sanguineus sensu lato (Acari: Ixodidae) in Brazil. JOURNAL OF MEDICAL ENTOMOLOGY 2017; 54:1201-1212. [PMID: 28399274 PMCID: PMC5850649 DOI: 10.1093/jme/tjx066] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Indexed: 06/07/2023]
Abstract
The Rhipicephalus sanguineus (Latreille) complex (Acari:Ixodidae) is composed of species with intra- and interspecific morphological variation that make their diagnosis difficult. In the present study, male specimens of the R. sanguineus complex were collected from dogs in six districts of three regions of Brazil and submitted to molecular and scanning electron microscopy (SEM) analyses. Analysis of COX1 gene, 12S rDNA, and D-loop rDNA shows that ticks classified as R. sanguineus form two different clades. Morphological comparisons using SEM found adult males to exhibit morphological differences in Haller's organ, festoons, and adanal, spiracular, and genital plates, with the last having potential usefulness in distinguishing male specimens of the complex.
Collapse
Affiliation(s)
- Rebecca Leal Caetano
- Instituto Oswaldo Cruz/Fundação Oswaldo Cruz (IOC/FIOCRUZ), Laboratório de Referência Nacional em Vetores das Riquetsioses, Avenida Brasil, 4365, CEP 21040-900, Rio de Janeiro, RJ, Brazil (; ; ; ; ; ; )
- Instituto Oswaldo Cruz/Fundação Oswaldo Cruz (IOC/FIOCRUZ), Programa de Pós-Graduação em Biodiversidade e Saúde, Avenida Brasil, 4365, CEP 21040-900, Rio de Janeiro, RJ, Brazil
- Universidade Estácio de Sá (UNESA), Rua Bingen, 50 – Bingen, CEP 25660-004, Petrópolis, RJ, Brazil
- Corresponding author, e-mail:
| | - Vinicius Figueiredo Vizzoni
- Instituto Oswaldo Cruz/Fundação Oswaldo Cruz (IOC/FIOCRUZ), Laboratório de Referência Nacional em Vetores das Riquetsioses, Avenida Brasil, 4365, CEP 21040-900, Rio de Janeiro, RJ, Brazil (; ; ; ; ; ; )
| | - Karla Bitencourth
- Instituto Oswaldo Cruz/Fundação Oswaldo Cruz (IOC/FIOCRUZ), Laboratório de Referência Nacional em Vetores das Riquetsioses, Avenida Brasil, 4365, CEP 21040-900, Rio de Janeiro, RJ, Brazil (; ; ; ; ; ; )
- Instituto Oswaldo Cruz/Fundação Oswaldo Cruz (IOC/FIOCRUZ), Programa de Pós-Graduação em Biodiversidade e Saúde, Avenida Brasil, 4365, CEP 21040-900, Rio de Janeiro, RJ, Brazil
| | - Cesar Carriço
- Instituto Oswaldo Cruz/Fundação Oswaldo Cruz (IOC/FIOCRUZ), Laboratório de Referência Nacional em Vetores das Riquetsioses, Avenida Brasil, 4365, CEP 21040-900, Rio de Janeiro, RJ, Brazil (; ; ; ; ; ; )
| | - Tayra Pereira Sato
- Instituto Oswaldo Cruz/Fundação Oswaldo Cruz (IOC/FIOCRUZ), Laboratório de Referência Nacional em Vetores das Riquetsioses, Avenida Brasil, 4365, CEP 21040-900, Rio de Janeiro, RJ, Brazil (; ; ; ; ; ; )
- Universidade Federal de Juiz de Fora (UFJF), Programa de Pós-Graduação em Comportamento e Biologia Animal, MG, Brazil
| | - Zeneida Teixeira Pinto
- Instituto Oswaldo Cruz/Fundação Oswaldo Cruz (IOC/FIOCRUZ), Laboratório de Educação em Ambiente e Saúde, Avenida Brasil, 4365, CEP 21040-900, Rio de Janeiro, RJ, Brazil ()
| | - Stefan Vilges De Oliveira
- Secretaria de Vigilância em Saúde/Ministério da Saúde (SVS/MS), Unidade técnica de vigilância de zoonoses, SCS - Quadra 04 Bloco “A” Edifício Principal - 3º Andar, CEP: 70.304-000, DF, Brazil ()
| | - Marinete Amorim
- Instituto Oswaldo Cruz/Fundação Oswaldo Cruz (IOC/FIOCRUZ), Laboratório de Referência Nacional em Vetores das Riquetsioses, Avenida Brasil, 4365, CEP 21040-900, Rio de Janeiro, RJ, Brazil (; ; ; ; ; ; )
| | - Carolina Moreira Voloch
- Laboratório de Biologia Evolutiva Teórica e Aplicada, Universidade Federal do Rio de Janeiro - UFRJ, Instituto de Biologia, Departamento de Genética, Av. Prof. Rodolpho Paulo Rocco s/n CCS, Bloco A, A2-097, Ilha do Fundão - Rio de Janeiro, RJ, CEP: 21941-901, Brazil ()
| | - Gilberto Salles Gazeta
- Instituto Oswaldo Cruz/Fundação Oswaldo Cruz (IOC/FIOCRUZ), Laboratório de Referência Nacional em Vetores das Riquetsioses, Avenida Brasil, 4365, CEP 21040-900, Rio de Janeiro, RJ, Brazil (; ; ; ; ; ; )
| |
Collapse
|