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Zobba R, Schianchi E, Ben Said M, Belkahia H, Messadi L, Piredda R, Pittau M, Alberti A. gltA typing of Anaplasma strains related to A. platys: Taxonomical and one health implications. Ticks Tick Borne Dis 2021; 13:101850. [PMID: 34656046 DOI: 10.1016/j.ttbdis.2021.101850] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 09/26/2021] [Accepted: 10/02/2021] [Indexed: 01/06/2023]
Abstract
Species belonging to the genus Anaplasma (Rickettsiales) include bacteria of veterinary and public health importance. Beside the zoonotic Anaplasma phagocytophilum, A. platys, the etiological agent of canine cyclic thrombocytopenia, has been sporadically reported in clinically ill human patients. The ongoing emergence of novel strains related to this species in vertebrate hosts emphasises the need for genetic comparisons among strains identified in different regions of the world. In this paper we developed a PCR test suitable for amplification of the still undescribed gltA gene of Anaplasma strains related to A. platys from Mediterranean ruminants and applied on a panel of 248 samples. gltA sequencing allowed phylogenetic comparison with strains related to A. platys recently identified in China, and strains representative of the Anaplasmataceae family. Results suggest the designation of Candidatus A. turritanum, including Mediterranean A. platys - like strains, and Candidatus A. cinensis, including strains isolated in China. Data generated in this study are a solid reference for future epidemiological studies of novel unclassified strains related to A. platys and for their diagnosis and raise concern on their potential veterinary and public health implications encouraging investigating the suspected unexplored diversity within the genus Anaplasma in animals and human.
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Affiliation(s)
- Rosanna Zobba
- Department of Veterinary Medicine, University of Sassari, Sassari, Italy; Mediterranean Center for Disease Control, University of Sassari, 07100 Sassari, Italy
| | - Eleonora Schianchi
- Department of Veterinary Medicine, University of Sassari, Sassari, Italy
| | - Mourad Ben Said
- Service de Microbiologie et Immunologie, Ecole Nationale de Médecine Vétérinaire, University of Manouba, Sidi Thabet, Tunisia; Institut Supérieur de Biotechnologie de Sidi Thabet, Département des Sciences Fondamentales, University of Manouba, Sidi Thabet, Tunisia
| | - Hanène Belkahia
- Service de Microbiologie et Immunologie, Ecole Nationale de Médecine Vétérinaire, University of Manouba, Sidi Thabet, Tunisia
| | - Lilia Messadi
- Service de Microbiologie et Immunologie, Ecole Nationale de Médecine Vétérinaire, University of Manouba, Sidi Thabet, Tunisia
| | - Roberta Piredda
- Department of Veterinary Medicine, University of Sassari, Sassari, Italy
| | - Marco Pittau
- Department of Veterinary Medicine, University of Sassari, Sassari, Italy; Mediterranean Center for Disease Control, University of Sassari, 07100 Sassari, Italy
| | - Alberto Alberti
- Department of Veterinary Medicine, University of Sassari, Sassari, Italy; Mediterranean Center for Disease Control, University of Sassari, 07100 Sassari, Italy.
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Abstract
There is no updated information on the spread of Rickettsiales in Italy. The purpose of our study is to take stock of the situation on Rickettsiales in Italy by focusing attention on the species identified by molecular methods in humans, in bloodsucking arthropods that could potentially attack humans, and in animals, possible hosts of these Rickettsiales. A computerized search without language restriction was conducted using PubMed updated as of December 31, 2020. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) methodology was followed. Overall, 36 species of microorganisms belonging to Rickettsiales were found. The only species identified in human tissues were Anaplasma phagocytophilum,Rickettsia conorii, R. conorii subsp. israelensis, R. monacensis, R. massiliae, and R. slovaca. Microorganisms transmissible by bloodsucking arthropods could cause humans pathologies not yet well characterized. It should become routine to study the pathogens present in ticks that have bitten a man and at the same time that molecular studies for the search for Rickettsiales can be performed routinely in people who have suffered bites from bloodsucking arthropods.
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Al –Obaidi SSA, Khalaf Al-Ani JM, Al-Shammari NB. Molecular Detection of Some Anaplasma Species in Blood of Dogs in Baghdad Province, Iraq. THE IRAQI JOURNAL OF VETERINARY MEDICINE 2020. [DOI: 10.30539/ijvm.v44i1.933] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
A total of 150 blood samples were collected from dogs and examined by the polymerase chain reaction (PCR) technique, which was used to detect the 16S RNA gene of Anaplasma platys and Anaplasma phagocytophilum. Subsequent analysis of the PCR amplicons was achieved by nucleotides sequencing of some positive samples. Totally, the findings show the presence of PCR products (i.e., Anaplasma spp. infection) in 12/150 (8.0%) of the dogs under study. While 5/150 (3.33%) of the cases were A. platys, 7/150 (4.66%) were A. phagocytophilum. Nucleotide sequencing confirmed the identity of the amplified genes whose sequences were compared with other references belong to 15 of 16S rRNA gene of A. platys and 14 references of 16S rRNA gene of A. phagocytophilum, and the isolate sequences of this study were deposited on the Gene Bank. The identity and similarity scores between the isolates of this study and reference strains ranged from 98 to 99%. In conclusion, canine anaplasmosis prevalence in dogs could be underestimated in Iraq, and the phylogenetic tree of the local A. platys and A. phagocytophilum isolates were found to resemble other worldwide strains of Anaplasma spp. with a high degree of similarity.
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Selmi R, Ben Said M, Dhibi M, Ben Yahia H, Messadi L. Improving specific detection and updating phylogenetic data related to Anaplasma platys-like strains infecting camels (Camelus dromedarius) and their ticks. Ticks Tick Borne Dis 2019; 10:101260. [PMID: 31327747 DOI: 10.1016/j.ttbdis.2019.07.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 06/13/2019] [Accepted: 07/06/2019] [Indexed: 01/28/2023]
Abstract
In camels and their infesting ectoparasites, specific detection of pathogenic Anaplasma platys and genetically related strains (A. platys-like strains) remains problematic. This requires sequencing of the hemi-nested PCR products specific to A. platys and related strains. In this study, a PCR/RFLP method, earlier developed for specific detection of A. platys-like strains in animal species other than camels, was adapted in order to subtype A. platys-like strains isolated from camels and their ticks and to differentiate them from pathogenic A. platys without going through a sequencing step. This approach was used for investigating the infections with A. platys and related strains in 412 Camelus dromedarius camels and 334 feeding ticks from five Tunisian governorates. Microscopic examination using Giemsa-stained blood smears was performed in order to specify which types of cells were infected. Ticks were identified as Hyalomma dromedarii (n = 164, 49%), H. impeltatum (n = 161, 48.3%) and H. excavatum (n = 9, 2.7%). A. platys was not detected in any of the tested camels or ticks. The overall prevalence of A. platys-like strains was 5.6% (23/412) in camels and microscopic examination of infected cells showed a tropism for neutrophil granulocytes. One tick identified as H. dromedarii out of 327 analyzed ticks was found to be infected with A. platys-like strains (0.3%). Alignment, identity comparison and phylogenetic analysis of the 16S rRNA partial sequences obtained in this study suggest that Tunisian dromedaries and feeding ticks are infected with different Anaplasma strains genetically related to A. platys. Sequence analysis and phylogenetic study based on the groEL gene confirm the RFLP results and show that camel strains formed a separate sub-cluster relatively close to A. platys-like strains infecting Tunisian cattle. This adapted RFLP assay allows fast and specific detection of pathogenic A. platys and A. platys-like strains in camels and infesting ticks and has the intrinsic potential of revealing co-infections with these two types of bacteria in the same sample, reducing the time and costs associated with cloning and sequencing during molecular diagnosis.
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Affiliation(s)
- Rachid Selmi
- Service de Microbiologie et Immunologie, Ecole Nationale de Médecine Vétérinaire, Université de Manouba, 2020 Sidi Thabet, Tunisia; Institut National Agronomique de Tunis, Université de Carthage, Tunisia; Ministère de la Défense Nationale, Direction Générale de la Santé Militaire, Service Vétérinaire, Tunis, Tunisia
| | - Mourad Ben Said
- Service de Microbiologie et Immunologie, Ecole Nationale de Médecine Vétérinaire, Université de Manouba, 2020 Sidi Thabet, Tunisia
| | - Mokhtar Dhibi
- Service de Parasitologie, Ecole Nationale de Médecine Vétérinaire, Université de Manouba, 2020 Sidi Thabet, Tunisia
| | - Houcine Ben Yahia
- Ministère de la Défense Nationale, Direction Générale de la Santé Militaire, Service Vétérinaire, Tunis, Tunisia
| | - Lilia Messadi
- Service de Microbiologie et Immunologie, Ecole Nationale de Médecine Vétérinaire, Université de Manouba, 2020 Sidi Thabet, Tunisia.
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Chisu V, Zobba R, Lecis R, Sotgiu F, Masala G, Foxi C, Pisu D, Alberti A. GroEL typing and phylogeny of Anaplasma species in ticks from domestic and wild vertebrates. Ticks Tick Borne Dis 2017; 9:31-36. [PMID: 29089249 DOI: 10.1016/j.ttbdis.2017.10.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 10/10/2017] [Accepted: 10/19/2017] [Indexed: 10/18/2022]
Abstract
Anaplasma species are globally distributed tick-borne bacteria causing a range of clinical conditions in domestic animals, wildlife, and human. Nevertheless, data on presence and distribution of Anaplasma strains in ticks are still lacking, especially in the Mediterranean region. This study reports the molecular identification, genetic characterization and phylogeny of Anaplasma strains of both veterinary and zoonotic importance in ticks collected from domestic and wild hosts sampled in a typical Mediterranean warm temperate region, the island of Sardinia. Results reveal the presence of A. ovis in Rhipicephalus bursa and R. sanguineus sensu lato ticks; A. platys-like was found in R. bursa ticks; while A. platys and A. phagocytophilum were detected in Hyalomma marginatum and H. lusitanicum ticks. Investigating the occurrence of different Anaplasma species in ticks from domestic and wild hosts improves the knowledge of tick-borne diseases in the Mediterranean area, and has implications in defining vector species distribution and risk assessment.
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Affiliation(s)
- Valentina Chisu
- Istituto Zooprofilattico Sperimentale della Sardegna, Sassari, Italy.
| | - Rosanna Zobba
- Dipartimento di Medicina Veterinaria, Università degli studi di Sassari, Italy
| | - Roberta Lecis
- Dipartimento di Medicina Veterinaria, Università degli studi di Sassari, Italy
| | - Francesca Sotgiu
- Dipartimento di Medicina Veterinaria, Università degli studi di Sassari, Italy
| | - Giovanna Masala
- Istituto Zooprofilattico Sperimentale della Sardegna, Sassari, Italy
| | - Cipriano Foxi
- Istituto Zooprofilattico Sperimentale della Sardegna, Sassari, Italy
| | - Danilo Pisu
- Osservatorio Faunistico Parco Nazionale Asinara, Asinara, Italy
| | - Alberto Alberti
- Dipartimento di Medicina Veterinaria, Università degli studi di Sassari, Italy
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Anaplasma platys-like strains in ruminants from Tunisia. INFECTION GENETICS AND EVOLUTION 2017; 49:226-233. [DOI: 10.1016/j.meegid.2017.01.023] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Revised: 01/18/2017] [Accepted: 01/21/2017] [Indexed: 01/18/2023]
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Wang J, Zhang Y, Wang X, Cui Y, Yan Y, Wang R, Jian F, Zhang L, Ning C. A Loop-Mediated Isothermal Amplification Assay Targeting 16S rRNA Gene for Rapid Detection of Anaplasma phagocytophilum Infection in Sheep and Goats. J Parasitol 2017; 103:187-192. [PMID: 28118097 DOI: 10.1645/16-158] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Anaplasma phagocytophilum is a zoonotic pathogen and the causative agent of human granulocytic anaplasmosis in humans and tick-borne fever in various kinds of animals. In the present study, a loop-mediated isothermal amplification (LAMP) assay for rapid detection of A. phagocytophilum was developed using primers specific to 16S rRNA gene of this organism. The LAMP assay was performed at 65 C for 60 min and terminated at 80 C for 10 min. The optimal reaction conditions under which no cross-reaction was observed with other closely related tick-borne parasites ( Anaplasma bovis , Anaplasma ovis , Theileria luwenshuni, Babesia motasi, and Schistosoma japonicum ) were established. The assay exhibited much higher sensitivity compared with conventional polymerase chain reaction (PCR) (1 copy vs. 1,000 copies). To evaluate the applicability of the LAMP assay, 94 field samples of sheep blood were analyzed for A. phagocytophilum infection by using LAMP, nested PCR, and conventional PCR assays at the same time. A positive LAMP result was obtained from 53 (56.4%) of the 94 samples, whereas only 12 (12.8%) and 3 (3.2%) tested positive by nested and conventional PCR, respectively. In conclusion, this LAMP assay is a specific, sensitive, and rapid method for the detection of A. phagocytophilum in sheep/goats.
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Affiliation(s)
- Jinhong Wang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450002, China
| | - Yan Zhang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450002, China
| | - Xiaoxing Wang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450002, China
| | - Yanyan Cui
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450002, China
| | - Yaqun Yan
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450002, China
| | - Rongjun Wang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450002, China
| | - Fuchun Jian
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450002, China
| | - Longxian Zhang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450002, China
| | - Changshen Ning
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450002, China
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Silva CBD, Santos HA, Navarrete MG, Ribeiro CCDU, Gonzalez BC, Zaldivar MF, Pires MS, Peckle M, Costa RLD, Vitari GLV, Massard CL. Molecular detection and characterization of Anaplasma platys in dogs and ticks in Cuba. Ticks Tick Borne Dis 2016; 7:938-944. [PMID: 27132516 DOI: 10.1016/j.ttbdis.2016.04.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Revised: 04/19/2016] [Accepted: 04/20/2016] [Indexed: 11/26/2022]
Abstract
Canine cyclic thrombocytopenia, an infectious disease caused by Anaplasma platys is a worldwide dog health problem. This study aimed to detect and characterize A. platys deoxyribonucleic acid (DNA) in dogs and ticks from Cuba using molecular methods. The study was conducted in four cities of Cuba (Habana del Este, Boyeros, Cotorro and San José de las Lajas). Blood samples were collected from 100 dogs in these cities. The animals were inspected for the detection of tick infestation and specimens were collected. Genomic DNA was extracted from dog blood and ticks using a commercial kit. Genomic DNA samples from blood and ticks were tested by a nested polymerase chain reaction (nPCR) to amplify 678 base pairs (bp) from the 16S ribosomal DNA (rDNA) of A. platys. Positive samples in nPCR were also subjected to PCR to amplify a fragment of 580bp from the citrate synthase (gltA) gene and the products were sequenced. Only Rhipicephalus sanguineus sensu lato (s.l.) was found on dogs, and 10.20% (n=5/49) of these ticks plus sixteen percent (16.0%, n=16/100) of dogs were considered positive for A. platys by nPCR targeting the 16S rDNA gene. All analyzed gltA and 16S rDNA sequences showed a 99-100% identity with sequences of A. platys reported in around the world. Phylogenetic analysis showed two defined clusters for the 16S rDNA gene and three defined clusters for the gltA gene. Based on the gltA gene, the deduced amino acid sequence showed two mutations at positions 88 and 168 compared with the sequence DQ525687 (GenBank ID from Italian sample), used as a reference in the alignment. A preliminary study on the epidemiological aspects associated with infection by A. platys showed no statistical association with the variables studied (p>0.05). This is the first evidence of the presence of A. platys in dogs and ticks in Cuba. Further studies are needed to evaluate the epidemiological aspects of A. platys infection in Cuban dogs.
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Affiliation(s)
- Claudia Bezerra da Silva
- Department of Animal Parasitology, Veterinary Institute, Federal Rural University of Rio de Janeiro, Br 465, km 7, Seropedica, Rio de Janeiro, 23897-000, Brazil.
| | - Huarrisson Azevedo Santos
- Department of Epidemiology and Public Health, Veterinary Institute, Federal Rural University of Rio de Janeiro, Br 465, km 7, Seropedica, Rio de Janeiro, 23897-000, Brazil
| | - Maylín González Navarrete
- Department of Animal Prevention, Veterinary Medicine College, Agrarian University of Habana, Mayabeque, Cuba
| | - Carla Carolina Dias Uzedo Ribeiro
- Department of Animal Parasitology, Veterinary Institute, Federal Rural University of Rio de Janeiro, Br 465, km 7, Seropedica, Rio de Janeiro, 23897-000, Brazil
| | - Belkis Corona Gonzalez
- Department of Microbiology, National Center for Animal and Plant Health, Mayabeque, Cuba
| | | | - Marcus Sandes Pires
- Department of Animal Parasitology, Veterinary Institute, Federal Rural University of Rio de Janeiro, Br 465, km 7, Seropedica, Rio de Janeiro, 23897-000, Brazil
| | - Maristela Peckle
- Department of Animal Parasitology, Veterinary Institute, Federal Rural University of Rio de Janeiro, Br 465, km 7, Seropedica, Rio de Janeiro, 23897-000, Brazil
| | - Renata Lins da Costa
- Department of Animal Parasitology, Veterinary Institute, Federal Rural University of Rio de Janeiro, Br 465, km 7, Seropedica, Rio de Janeiro, 23897-000, Brazil
| | - Gabriela Lopes Vivas Vitari
- Department of Animal Parasitology, Veterinary Institute, Federal Rural University of Rio de Janeiro, Br 465, km 7, Seropedica, Rio de Janeiro, 23897-000, Brazil
| | - Carlos Luiz Massard
- Department of Animal Parasitology, Veterinary Institute, Federal Rural University of Rio de Janeiro, Br 465, km 7, Seropedica, Rio de Janeiro, 23897-000, Brazil
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9
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Zobba R, Anfossi A, Visco S, Sotgiu F, Dedola C, Pinna Parpaglia M, Battilani M, Pittau M, Alberti A. Cell tropism and molecular epidemiology of Anaplasma platys-like strains in cats. Ticks Tick Borne Dis 2015; 6:272-80. [DOI: 10.1016/j.ttbdis.2015.01.008] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2014] [Revised: 01/26/2015] [Accepted: 01/26/2015] [Indexed: 10/24/2022]
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Chastagner A, Dugat T, Vourc'h G, Verheyden H, Legrand L, Bachy V, Chabanne L, Joncour G, Maillard R, Boulouis HJ, Haddad N, Bailly X, Leblond A. Multilocus sequence analysis of Anaplasma phagocytophilum reveals three distinct lineages with different host ranges in clinically ill French cattle. Vet Res 2014; 45:114. [PMID: 25487348 PMCID: PMC4334609 DOI: 10.1186/s13567-014-0114-7] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2014] [Accepted: 10/21/2014] [Indexed: 11/10/2022] Open
Abstract
Molecular epidemiology represents a powerful approach to elucidate the complex epidemiological cycles of multi-host pathogens, such as Anaplasma phagocytophilum. A. phagocytophilum is a tick-borne bacterium that affects a wide range of wild and domesticated animals. Here, we characterized its genetic diversity in populations of French cattle; we then compared the observed genotypes with those found in horses, dogs, and roe deer to determine whether genotypes of A. phagocytophilum are shared among different hosts. We sampled 120 domesticated animals (104 cattle, 13 horses, and 3 dogs) and 40 wild animals (roe deer) and used multilocus sequence analysis on nine loci (ankA, msp4, groESL, typA, pled, gyrA, recG, polA, and an intergenic region) to characterize the genotypes of A. phagocytophilum present. Phylogenic analysis revealed three genetic clusters of bacterial variants in domesticated animals. The two principal clusters included 98% of the bacterial genotypes found in cattle, which were only distantly related to those in roe deer. One cluster comprised only cattle genotypes, while the second contained genotypes from cattle, horses, and dogs. The third contained all roe deer genotypes and three cattle genotypes. Geographical factors could not explain this clustering pattern. These results suggest that roe deer do not contribute to the spread of A. phagocytophilum in cattle in France. Further studies should explore if these different clusters are associated with differing disease severity in domesticated hosts. Additionally, it remains to be seen if the three clusters of A. phagocytophilum genotypes in cattle correspond to distinct epidemiological cycles, potentially involving different reservoir hosts.
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Affiliation(s)
- Amélie Chastagner
- INRA, UR346 Epidémiologie Animale, F-63122, Saint Genès Champanelle, France.
| | - Thibaud Dugat
- Université Paris-Est, Ecole Nationale Vétérinaire d'Alfort, UMR BIPAR, 23 avenue du Général de Gaulle, 94706, Maisons-Alfort, France.
| | - Gwenaël Vourc'h
- INRA, UR346 Epidémiologie Animale, F-63122, Saint Genès Champanelle, France.
| | - Hélène Verheyden
- INRA, CEFS, UR035, 24 chemin de Borde Rouge - Auzeville, CS 52627, F-31326, Castanet Tolosan, France.
| | - Loïc Legrand
- LABÉO - Frank Duncombe, Unite Risques Microbiens (U2RM), Normandie Universite, EA 4655, Caen, Normandy, France.
| | - Véronique Bachy
- Laboratoire Vétérinaire Départemental du Rhône, Campus vétérinaire VetAgro Sup, 1 avenue Bourgelat, 69280, Marcy l'Etoile, France.
| | - Luc Chabanne
- Université de Lyon, VetAgro Sup, Jeune Equipe Hémopathogènes Vectorisés, F-69280, Marcy l'Etoile, France.
| | - Guy Joncour
- Groupe Vétérinaire de Callac, 26 rue du Cleumeur, 22160, Callac, France.
| | - Renaud Maillard
- Ecole Nationale Vétérinaire de Toulouse, Unité pathologie des ruminants, 23 Chemin des Capelles, 31076, Toulouse, France.
| | - Henri-Jean Boulouis
- Université Paris-Est, Ecole Nationale Vétérinaire d'Alfort, UMR BIPAR, 23 avenue du Général de Gaulle, 94706, Maisons-Alfort, France.
| | - Nadia Haddad
- Université Paris-Est, Ecole Nationale Vétérinaire d'Alfort, UMR BIPAR, 23 avenue du Général de Gaulle, 94706, Maisons-Alfort, France.
| | - Xavier Bailly
- INRA, UR346 Epidémiologie Animale, F-63122, Saint Genès Champanelle, France.
| | - Agnès Leblond
- INRA, UR346 Epidémiologie Animale, F-63122, Saint Genès Champanelle, France. .,Département Hippique, VetAgroSup, F-69280, Marcy L'Etoile, France.
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11
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Zobba R, Nuvoli AM, Sotgiu F, Lecis R, Spezzigu A, Dore GM, Masia MA, Cacciotto C, Parpaglia MLP, Dessì D, Pittau M, Alberti A. Molecular Epizootiology and Diagnosis of Porcine Babesiosis in Sardinia, Italy. Vector Borne Zoonotic Dis 2014; 14:716-23. [DOI: 10.1089/vbz.2014.1648] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Rosanna Zobba
- Dipartimento di Medicina Veterinaria, Università degli Studi di Sassari, Sassari, Italy
| | - Anna Maria Nuvoli
- Dipartimento di Medicina Veterinaria, Università degli Studi di Sassari, Sassari, Italy
| | - Francesca Sotgiu
- Dipartimento di Medicina Veterinaria, Università degli Studi di Sassari, Sassari, Italy
| | - Roberta Lecis
- Dipartimento di Medicina Veterinaria, Università degli Studi di Sassari, Sassari, Italy
| | - Antonio Spezzigu
- Dipartimento di Medicina Veterinaria, Università degli Studi di Sassari, Sassari, Italy
| | - Gian Mario Dore
- Dipartimento di Medicina Veterinaria, Università degli Studi di Sassari, Sassari, Italy
| | - Marco Antonio Masia
- Dipartimento di Medicina Veterinaria, Università degli Studi di Sassari, Sassari, Italy
| | - Carla Cacciotto
- Dipartimento di Medicina Veterinaria, Università degli Studi di Sassari, Sassari, Italy
| | | | - Daniele Dessì
- Dipartimento di Scienze Biomediche, Università degli Studi di Sassari, Sassari, Italy
| | - Marco Pittau
- Dipartimento di Medicina Veterinaria, Università degli Studi di Sassari, Sassari, Italy
| | - Alberto Alberti
- Dipartimento di Medicina Veterinaria, Università degli Studi di Sassari, Sassari, Italy
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Molecular investigation and phylogeny of Anaplasma spp. in Mediterranean ruminants reveal the presence of neutrophil-tropic strains closely related to A. platys. Appl Environ Microbiol 2013; 80:271-80. [PMID: 24162569 DOI: 10.1128/aem.03129-13] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Few data are available on the prevalence and molecular typing of species belonging to the genus Anaplasma in Mediterranean ruminants. In this study, PCR analysis and sequencing of both 16S rRNA and groEL genes were combined to investigate the presence, prevalence, and molecular traits of Anaplasma spp. in ruminants sampled on the Island of Sardinia, chosen as a subtropical representative area. The results demonstrate a high prevalence of Anaplasma spp. in ruminants, with animals infected by at least four of six Anaplasma species (Anaplasma marginale, A. bovis, A. ovis, and A. phagocytophilum). Moreover, ruminants host a number of neutrophil-tropic strains genetically closely related to the canine pathogen A. platys. The high Anaplasma spp. prevalence and the identification of as-yet-unclassified neutrophil-tropic strains raise concerns about the specificity of serological tests routinely used in ruminants and provide additional background for reconstructing the evolutionary history of species genetically related to A. phagocytophilum.
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Rapid, simple, and sensitive detection of Anaplasma phagocytophilum by loop-mediated isothermal amplification of the msp2 gene. J Clin Microbiol 2011; 49:4117-20. [PMID: 21976758 DOI: 10.1128/jcm.01085-11] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Anaplasma phagocytophilum is the causative agent of human granulocytic anaplasmosis, which is prevalent throughout China. In this study, we describe a rapid, simple, and sensitive loop-mediated isothermal amplification (LAMP) assay targeting the msp2 gene of A. phagocytophilum that is ideal for application in rural areas in China. This assay has the potential to detect A. phagocytophilum early in infection as an alternative to existing methods. A total of 42 suspected cases of infection with A. phagocytophilum, 15 serologically confirmed and 27 probable cases, were analyzed by the msp2 LAMP assay. To validate the accuracy of LAMP, previously established nested-PCR and real-time PCR assays were utilized. The sensitivity of LAMP was 25 copies per reaction (approximately 1,250 copies per ml blood) for A. phagocytophilum, and the assay did not detect false positives among 27 members of the order Rickettsiales and 17 common clinical pathogens. To evaluate the clinical applicability of the LAMP assay, a total of 42 clinical samples were examined. A positive LAMP result was obtained for 12 of the confirmed cases and for 14 of 27 suspected cases, while only 1 confirmed case and 3 cases (2 confirmed cases and 1 suspected case) were detected by nested PCR and real-time PCR, respectively. The LAMP assay described in this study demonstrated a high level of sensitivity comparable with that of nested PCR and real-time PCR for the detection of A. phagocytophilum. This LAMP assay is a valuable method for rapid, cost-effective, and simple detection of A. phagocytophilum in the rural areas of China.
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Scientific Opinion on Geographic Distribution of Tick-borne Infections and their Vectors in Europe and the other Regions of the Mediterranean Basin. EFSA J 2010. [DOI: 10.2903/j.efsa.2010.1723] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Otranto D, Dantas-Torres F. Canine and feline vector-borne diseases in Italy: current situation and perspectives. Parasit Vectors 2010; 3:2. [PMID: 20145730 PMCID: PMC2818618 DOI: 10.1186/1756-3305-3-2] [Citation(s) in RCA: 131] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2009] [Accepted: 01/11/2010] [Indexed: 12/02/2022] Open
Abstract
In Italy, dogs and cats are at risk of becoming infected by different vector-borne pathogens, including protozoa, bacteria, and helminths. Ticks, fleas, phlebotomine sand flies, and mosquitoes are recognized vectors of pathogens affecting cats and dogs, some of which (e.g., Anaplasma phagocytophilum, Borrelia burgdorferi, Dipylidium caninum, Leishmania infantum, Dirofilaria immitis, and Dirofilaria repens) are of zoonotic concern. Recent studies have highlighted the potential of fleas as vectors of pathogens of zoonotic relevance (e.g., Rickettsia felis) in this country. While some arthropod vectors (e.g., ticks and fleas) are present in certain Italian regions throughout the year, others (e.g., phlebotomine sand flies) are most active during the summer season. Accordingly, control strategies, such as those relying on the systematic use of acaricides and insecticides, should be planned on the basis of the ecology of both vectors and pathogens in different geographical areas in order to improve their effectiveness in reducing the risk of infection by vector-borne pathogens. This article reviews the current situation and perspectives of canine and feline vector-borne diseases in Italy.
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Affiliation(s)
- Domenico Otranto
- Dipartimento di Sanità Pubblica e Zootecnia, Facoltà di Medicina Veterinaria, Università degli Studi di Bari, 70010 Valenzano, Bari, Italy
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Passamonti F, Fabrizia V, Katia C, Stefano C, Giacomo C, Luisa MM, Daniela PF, Andrea VS, Mauro C. Anaplasma phagocytophilum in horses and ticks: A preliminary survey of Central Italy. Comp Immunol Microbiol Infect Dis 2010; 33:73-83. [DOI: 10.1016/j.cimid.2008.08.002] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/09/2008] [Indexed: 10/21/2022]
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