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  1 / 3822 MEDLINE  
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[PMID]:29022768
[Au] Autor:Morganti G; Gavaudan S; Canonico C; Ravagnan S; Olivieri E; Diaferia M; Marenzoni ML; Antognoni MT; Capelli G; Silaghi C; Veronesi F
[Ad] Endereço:1 Department of Veterinary Medicine, University of Perugia , Perugia, Italy .
[Ti] Título:Molecular Survey on Rickettsia spp., Anaplasma phagocytophilum, Borrelia burgdorferi Sensu Lato, and Babesia spp. in Ixodes ricinus Ticks Infesting Dogs in Central Italy.
[So] Source:Vector Borne Zoonotic Dis;17(11):743-748, 2017 Nov.
[Is] ISSN:1557-7759
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Dogs are a common feeding hosts for Ixodes ricinus and may act as reservoir hosts for zoonotic tick-borne pathogens (TBPs) and as carriers of infected ticks into human settings. The aim of this work was to evaluate the presence of several selected TBPs of significant public health concern by molecular methods in I. ricinus recovered from dogs living in urban and suburban settings in central Italy. A total of 212 I. ricinus specimens were collected from the coat of domestic dogs. DNA was extracted from each specimen individually and tested for Rickettsia spp., Borrelia burgdorferi sensu lato, Babesia spp., and Anaplasma phagocytophilum, using real-time and conventional PCR protocols, followed by sequencing. Sixty-one ticks (28.8%) tested positive for TBPs; 57 samples were infected by one pathogen, while four showed coinfections. Rickettsia spp. was detected in 39 specimens (18.4%), of which 32 were identified as Rickettsia monacensis and seven as Rickettsia helvetica. Twenty-two samples (10.4%) tested positive for A. phagocytophilum; Borrelia lusitaniae and Borrelia afzelii were detected in two specimens and one specimen, respectively. One tick (0.5%) was found to be positive for Babesia venatorum (EU1). Our findings reveal the significant exposure of dogs to TBPs of public health concern and provide data on the role of dogs in the circulation of I. ricinus-borne pathogens in central Italy.
[Mh] Termos MeSH primário: Anaplasma phagocytophilum/isolamento & purificação
Babesia/isolamento & purificação
Grupo Borrelia Burgdorferi/isolamento & purificação
Doenças do Cão/parasitologia
Ixodes/microbiologia
Rickettsia/isolamento & purificação
[Mh] Termos MeSH secundário: Anaplasma phagocytophilum/genética
Animais
Babesia/genética
Grupo Borrelia Burgdorferi/genética
DNA Bacteriano/genética
DNA de Protozoário/genética
Doenças do Cão/epidemiologia
Cães
Feminino
Itália/epidemiologia
Masculino
Ninfa
Rickettsia/genética
Infestações por Carrapato/epidemiologia
Infestações por Carrapato/parasitologia
Infestações por Carrapato/veterinária
Zoonoses
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (DNA, Bacterial); 0 (DNA, Protozoan)
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171109
[Lr] Data última revisão:
171109
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171013
[St] Status:MEDLINE
[do] DOI:10.1089/vbz.2017.2154


  2 / 3822 MEDLINE  
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[PMID]:28976820
[Au] Autor:Roy AN; Straub MH; Stephenson N; Sholty KE; Foley J
[Ad] Endereço:1 Department of Veterinary Medicine and Epidemiology, School of Veterinary Medicine, University of California , Davis, Davis, California.
[Ti] Título:Distribution and Diversity of Borrelia burgdorferi Sensu Lato Group Bacteria in Sciurids of California.
[So] Source:Vector Borne Zoonotic Dis;17(11):735-742, 2017 Nov.
[Is] ISSN:1557-7759
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:California has a remarkable diversity of squirrel and chipmunk species (sciurids), and five named and several unnamed genospecies in the Borrelia burgdorferi sensu lato group (BBSL) of bacteria as well, many of which utilize sciurids as reservoirs. We investigated the prevalence, spatial distribution, and diversity of BBSL in sciurids of California by literature search, PCR of 585 ear tissue samples from 15 sciurid species prospectively collected across 19 California counties, and DNA sequencing when possible. Seven publications documented BBSL infections in western gray squirrels (Sciurus griseus), fox squirrels (Sciurus niger), eastern gray squirrels (Sciurus carolinensis), Douglas squirrels (Tamiasciurus douglasii), and redwood chipmunks (Tamias ochrogenys) in northern California. Prospective sampling added new BBSL infection records for long-eared chipmunks (Tamias quadrimaculatus), Allen's chipmunks (Tamias senex), and Siskiyou chipmunks (Tamias siskiyou). Infection was detected in the Mendocino, North Coast, West Sierra, and Central Valley regions of California. The overall PCR prevalence was 9.4% (n = 585), and exceeded 40% (n = 84) in Mendocino and farther north along the Pacific coast. Redwood (40.7%, n = 81) and Siskiyou (22.2%, n = 18) chipmunks had the highest prevalence of BBSL infection. BBSL infections were associated with arboreal and semiarboreal sciurid species and species occurring in conifer forests. Western gray squirrels and Allen's chipmunks in Humboldt County and redwood chipmunks in Mendocino County were infected with B. burgdorferi sensu stricto, while we identified Borrelia bissettiae in Douglas squirrels and Siskiyou chipmunks in Humboldt and Del Norte Counties. This indicates that further study of sciurids can aid in describing the ecology of BBSL in California.
[Mh] Termos MeSH primário: Grupo Borrelia Burgdorferi/isolamento & purificação
Doença de Lyme/veterinária
Sciuridae/microbiologia
[Mh] Termos MeSH secundário: Animais
California/epidemiologia
DNA Bacteriano/genética
Doença de Lyme/epidemiologia
Doença de Lyme/microbiologia
Reação em Cadeia da Polimerase
Zoonoses
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (DNA, Bacterial)
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171109
[Lr] Data última revisão:
171109
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171005
[St] Status:MEDLINE
[do] DOI:10.1089/vbz.2017.2134


  3 / 3822 MEDLINE  
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[PMID]:28884668
[Au] Autor:Margos G; Fedorova N; Kleinjan JE; Hartberger C; Schwan TG; Sing A; Fingerle V
[Ad] Endereço:1​German National Reference Centre for Borrelia at the Bavarian Health and Food Safety Authority, Veterinärstr. 2, Oberschleissheim, Germany.
[Ti] Título:Borrelia lanei sp. nov. extends the diversity of Borrelia species in California.
[So] Source:Int J Syst Evol Microbiol;67(10):3872-3876, 2017 Oct.
[Is] ISSN:1466-5034
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The diversity of Borrelia species discovered in California appears to be particularly high. A divergent group of Borrelia strains collected from Ixodes ticks in California was described by Postic and co-workers and designated 'genomospecies 2' (Postic D, Garnier M, Baranton G. Int J Med Microbiol 2007;297:263-271; Postic D, Ras NM, Lane RS, Hendson M, Baranton G. J Clin Microbiol 1998;36:3497-3504). We performed multilocus sequence analysis (MLSA) using eight housekeeping loci (clpA, clpX, nifS, pepX, pyrG, recG, rplB and uvrA) on 12 strains of this Borreliagenospecies to confirm that these strains form a distinct group within the Borreliaburgdorferi s. l. complex (Margos G, Hojgaard A, Lane RS, Cornet M, Fingerle V et al.Ticks Tick Borne Dis 2010;1:151-158). Phylogenetic and genetic distance analyses based on sequences of the MLSA housekeeping genes corroborated the distinctness of this group; genetic distances to all other members of the B. burgdorferi s.l. complex were 96 % or lower. We propose the name Borrelia lanei sp. nov. for this genospecies in honor of Professor Robert S. Lane, University of California Berkeley, for his contributions to Borrelia and tick research. The type strain for Borrelia lanei sp. nov., strain CA28-91 , has been deposited to two culture collections (=DSM 17992 =CIP 109135 ).
[Mh] Termos MeSH primário: Grupo Borrelia Burgdorferi/classificação
Ixodes/microbiologia
Filogenia
[Mh] Termos MeSH secundário: Animais
Técnicas de Tipagem Bacteriana
Composição de Bases
Grupo Borrelia Burgdorferi/genética
Grupo Borrelia Burgdorferi/isolamento & purificação
California
DNA Bacteriano/genética
Genes Bacterianos
Tipagem de Sequências Multilocus
RNA Ribossômico 16S/genética
Análise de Sequência de DNA
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (DNA, Bacterial); 0 (RNA, Ribosomal, 16S)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171031
[Lr] Data última revisão:
171031
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170909
[St] Status:MEDLINE
[do] DOI:10.1099/ijsem.0.002214


  4 / 3822 MEDLINE  
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[PMID]:28863166
[Au] Autor:Comstedt P; Schüler W; Meinke A; Lundberg U
[Ad] Endereço:Valneva Austria GmbH, Vienna, Austria.
[Ti] Título:The novel Lyme borreliosis vaccine VLA15 shows broad protection against Borrelia species expressing six different OspA serotypes.
[So] Source:PLoS One;12(9):e0184357, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:We have previously shown that the Outer surface protein A (OspA) based Lyme borreliosis vaccine VLA15 induces protective immunity in mice. Herein, we report the induction of protective immunity by VLA15 with mouse models using ticks infected with B. burgdorferi (OspA serotype 1), B. afzelii (OspA serotype 2) and B. bavariensis (OspA serotype 4) or with in vitro grown B. garinii (OspA serotype 5 and 6) for challenge. For B. garinii (OspA serotype 3), we have developed a growth inhibition assay using chicken complement and functional antibodies targeting B. garinii (OspA serotype 3) could be demonstrated after immunization with VLA15. Furthermore, following three priming immunizations, a booster dose was administered five months later and the induction of immunological memory could be confirmed. Thus, the antibody titers after the booster dose were increased considerably compared to those after primary immunization. In addition, the half-lives of anti-OspA serotype specific antibodies after administration of the booster immunization were longer than after primary immunization. Taken together, we could show that VLA15 induced protection in mice against challenge with four different clinically relevant Borrelia species (B. burgdorferi, B. afzelii, B. garinii and B. bavariensis) expressing five of the six OspA serotypes included in the vaccine. The protection data is supported by functional assays showing efficacy against spirochetes expressing any of the six OspA serotypes (1 to 6). To our knowledge, this is the first time a Lyme borreliosis vaccine has been able to demonstrate such broad protection in preclinical studies. These new data provide further promise for the clinical development of VLA15 and supports our efforts to provide a new Lyme borreliosis vaccine available for global use.
[Mh] Termos MeSH primário: Antígenos de Superfície/genética
Proteínas da Membrana Bacteriana Externa/genética
Vacinas Bacterianas/genética
Grupo Borrelia Burgdorferi/genética
Lipoproteínas/genética
Vacinas contra Doença de Lyme/imunologia
Doença de Lyme/prevenção & controle
[Mh] Termos MeSH secundário: Animais
Anticorpos Antibacterianos/sangue
Anticorpos Antibacterianos/imunologia
Camundongos
Camundongos Endogâmicos C3H
Sorogrupo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Antibodies, Bacterial); 0 (Antigens, Surface); 0 (Bacterial Outer Membrane Proteins); 0 (Bacterial Vaccines); 0 (Lipoproteins); 0 (Lyme Disease Vaccines); 0 (OspA protein)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171023
[Lr] Data última revisão:
171023
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170902
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0184357


  5 / 3822 MEDLINE  
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[PMID]:28612350
[Au] Autor:Hvidsten D; Mortensen L; Straume B; Arsenovic MG; Pedersen AB; Lyngås G; Gray JS; Grude N
[Ad] Endereço:Department of Microbiology and Infection Control, University Hospital of North Norway, Tromsø, Norway.
[Ti] Título:Blood donor Borrelia burgdorferi sensu lato seroprevalence and history of tick bites at a northern limit of the vector distribution.
[So] Source:APMIS;125(8):717-724, 2017 Aug.
[Is] ISSN:1600-0463
[Cp] País de publicação:Denmark
[La] Idioma:eng
[Ab] Resumo:In order to study the antibody seroprevalence of the causal agent of Lyme borreliosis, Borrelia burgdorferi sensu lato (s.l.), and the history of tick bites at a geographical distribution limit of Ixodes ricinus, we compared healthy blood donors in geographically extreme regions: the borreliosis-endemic Vestfold County (59°N) and the region of northern Norway. Blood samples were screened using IgG/VlsE ELISA, and positive/borderline samples were confirmed using C6 ELISA and immunoblot assays. Also, donors completed a questionnaire consisting of several items including the places they have lived, and whether they owned any pets. The seroprevalence was 0.48% (5/1048) in northern Norway and 9.25% (48/519) in Vestfold County. Seven donors (of 1048) had experienced a single tick bite in the southern part of Nordland County (65°N) in northern Norway. This first study on B. burgdorferi s.l. antibody seroprevalence and tick bites on humans and pets in northern Norway showed that the seroprevalence of B. burgdorferi s.l. infection and the risk of tick bite in northern Norway are insignificant; the fact that only five positive IgG samples were detected underscores the very low background seroprevalence. These results suggest that so far I. ricinus has not expanded north of the previously established geographical distribution limit.
[Mh] Termos MeSH primário: Anticorpos Antibacterianos/sangue
Grupo Borrelia Burgdorferi/imunologia
Ixodes/crescimento & desenvolvimento
Doença de Lyme/epidemiologia
Picadas de Carrapatos/epidemiologia
[Mh] Termos MeSH secundário: Adolescente
Adulto
Idoso
Animais
Doadores de Sangue
Ensaio de Imunoadsorção Enzimática
Feminino
Seres Humanos
Immunoblotting
Imunoglobulina G/sangue
Doença de Lyme/imunologia
Masculino
Meia-Idade
Noruega/epidemiologia
Estudos Soroepidemiológicos
Inquéritos e Questionários
Picadas de Carrapatos/complicações
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Antibodies, Bacterial); 0 (Immunoglobulin G)
[Em] Mês de entrada:1707
[Cu] Atualização por classe:170726
[Lr] Data última revisão:
170726
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170615
[St] Status:MEDLINE
[do] DOI:10.1111/apm.12708


  6 / 3822 MEDLINE  
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[PMID]:28549151
[Au] Autor:VanBik D; Lee SH; Seo MG; Jeon BR; Goo YK; Park SJ; Rhee MH; Kwon OD; Kim TH; Geraldino PJL; Kwak D
[Ad] Endereço:College of Veterinary Medicine, Kyungpook National University, Daegu, Korea.
[Ti] Título:Borrelia Species Detected in Ticks Feeding on Wild Korean Water Deer (Hydropotes inermis) Using Molecular and Genotypic Analyses.
[So] Source:J Med Entomol;54(5):1397-1402, 2017 Sep 01.
[Is] ISSN:1938-2928
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Lyme borreliosis is a vector-borne disease transmitted through the bite of ticks infected by Borrelia burgdorferi sensu lato group, including B. burgdorferi sensu stricto, B. afzelii, and B. garinii. The goal of the present study was to detect Borrelia species in ticks infesting wild Korean water deer (KWD; Hydropotes inermis Swinhoe), using molecular and genotypic analyses. In total, 48 ticks were collected from KWD, all of which were morphologically identified as Haemaphysalis longicornis Neumann that is dominant in Korea. Nested PCR was performed to detect the Borrelia-specific 5S (rrf)-23S (rrl) intergenic spacer region and the outer surface protein A (ospA) genes in ticks. Both rrf-rrl and ospA were amplified from one of the 48 ticks (2.1%) and were identified as B. afzelii. To our knowledge, this study constitutes the first molecular detection of B. afzelii in Haemaphysalis ticks in Korea. Because B. afzelii is a zoonotic tick-borne pathogen, understanding the molecular characteristics of this bacterium is important for preventing the transmission of Borrelia from ticks to other animals and humans.
[Mh] Termos MeSH primário: Grupo Borrelia Burgdorferi/genética
Cervos
Ixodidae/microbiologia
Ixodidae/fisiologia
Doença de Lyme/veterinária
Infestações por Carrapato/veterinária
[Mh] Termos MeSH secundário: Animais
Antígenos de Superfície/genética
Proteínas da Membrana Bacteriana Externa/genética
Vacinas Bacterianas/genética
Grupo Borrelia Burgdorferi/fisiologia
DNA Bacteriano/genética
DNA Espaçador Ribossômico/genética
Ixodidae/crescimento & desenvolvimento
Lipoproteínas/genética
Doença de Lyme/microbiologia
Ninfa/crescimento & desenvolvimento
Ninfa/microbiologia
Ninfa/fisiologia
Reação em Cadeia da Polimerase/veterinária
República da Coreia
Infestações por Carrapato/parasitologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Antigens, Surface); 0 (Bacterial Outer Membrane Proteins); 0 (Bacterial Vaccines); 0 (DNA, Bacterial); 0 (DNA, Ribosomal Spacer); 0 (Lipoproteins); 0 (OspA protein)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170922
[Lr] Data última revisão:
170922
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170527
[St] Status:MEDLINE
[do] DOI:10.1093/jme/tjx106


  7 / 3822 MEDLINE  
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[PMID]:28444198
[Au] Autor:Johnson TL; Graham CB; Hojgaard A; Breuner NE; Maes SE; Boegler KA; Replogle AJ; Kingry LC; Petersen JM; Eisen L; Eisen RJ
[Ad] Endereço:Division of Vector-Borne Diseases, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, 3156 Rampart Rd., Fort Collins, CO 80521.
[Ti] Título:Isolation of the Lyme Disease Spirochete Borrelia mayonii From Naturally Infected Rodents in Minnesota.
[So] Source:J Med Entomol;54(4):1088-1092, 2017 Jul 01.
[Is] ISSN:1938-2928
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Borrelia mayonii is a newly described member of the Borrelia burgdorferi sensu lato complex that is vectored by the black-legged tick (Ixodes scapularis Say) and a cause of Lyme disease in Minnesota and Wisconsin. Vertebrate reservoir hosts involved in the enzootic maintenance of B. mayonii have not yet been identified. Here, we describe the first isolation of B. mayonii from naturally infected white-footed mice (Peromyscus leucopus Rafinesque) and an American red squirrel (Tamiasciurus hudsonicus Erxleben) from Minnesota, thus implicating these species as potential reservoir hosts for this newly described spirochete.
[Mh] Termos MeSH primário: Grupo Borrelia Burgdorferi/isolamento & purificação
Peromyscus/microbiologia
Sciuridae/microbiologia
[Mh] Termos MeSH secundário: Animais
Ixodes/microbiologia
Ixodes/fisiologia
Doença de Lyme/microbiologia
Minnesota
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171102
[Lr] Data última revisão:
171102
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170427
[St] Status:MEDLINE
[do] DOI:10.1093/jme/tjx062


  8 / 3822 MEDLINE  
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[PMID]:28361038
[Au] Autor:Urbanová V; Hajdusek O; Hönig Mondeková H; Síma R; Kopácek P
[Ad] Endereço:Biology Centre of the Czech Academy of Sciences, Institute of Parasitology Ceske Budejovice, Czechia.
[Ti] Título:Tick Thioester-Containing Proteins and Phagocytosis Do Not Affect Transmission of from the Competent Vector .
[So] Source:Front Cell Infect Microbiol;7:73, 2017.
[Is] ISSN:2235-2988
[Cp] País de publicação:Switzerland
[La] Idioma:eng
[Ab] Resumo:The present concept of the transmission of Lyme disease from -infected sp. ticks to the naïve host assumes that a low number of spirochetes that manage to penetrate the midgut epithelium migrate through the hemocoel to the salivary glands and subsequently infect the host with the aid of immunomodulatory compounds present in tick saliva. Therefore, humoral and/or cellular immune reactions within the tick hemocoel may play an important role in tick competence to act as a vector for borreliosis. To test this hypothesis we have examined complement-like reactions in the hemolymph of the hard tick against (the most common vector and causative agent of Lyme disease in Europe). We demonstrate that hemolymph does not exhibit borreliacidal effects comparable to complement-mediated lysis of bovine sera. However, after injection of into the tick hemocoel, the spirochetes were efficiently phagocytosed by tick hemocytes and this cellular defense was completely eliminated by pre-injection of latex beads. As tick thioester-containing proteins (T-TEPs) are components of the tick complement system, we performed RNAi-mediated silencing of all nine genes encoding individual T-TEPs followed by phagocytosis assays. Silencing of two molecules related to the C3 complement component ( C3-2 and C3-3) significantly suppressed phagocytosis of , while knockdown of Tep (insect type TEP) led to its stimulation. However, RNAi-mediated silencing of T-TEPs or elimination of phagocytosis by injection of latex beads in -infected nymphs had no obvious impact on the transmission of spirochetes to naïve mice, as determined by infection of murine tissues following tick infestation. This result supports the concept that spirochetes are capable of avoiding complement-related reactions within the hemocoel of ticks competent to transmit Lyme disease.
[Mh] Termos MeSH primário: Vetores Aracnídeos/microbiologia
Grupo Borrelia Burgdorferi/imunologia
Proteínas do Sistema Complemento/metabolismo
Hemócitos/imunologia
Ixodes/microbiologia
Doença de Lyme/transmissão
Fagocitose
[Mh] Termos MeSH secundário: Animais
Vetores Aracnídeos/imunologia
Proteínas de Artrópodes/metabolismo
Modelos Animais de Doenças
Transmissão de Doença Infecciosa
Ixodes/imunologia
Camundongos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Arthropod Proteins); 9007-36-7 (Complement System Proteins)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170919
[Lr] Data última revisão:
170919
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170401
[St] Status:MEDLINE
[do] DOI:10.3389/fcimb.2017.00073


  9 / 3822 MEDLINE  
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[PMID]:28288773
[Au] Autor:Montenegro VM; Bonilla MC; Kaminsky D; Romero-Zúñiga JJ; Siebert S; Krämer F
[Ad] Endereço:Laboratorio de Parasitología, Escuela de Medicina Veterinaria, Universidad Nacional, Campus Benjamín Núñez, Heredia, Costa Rica.
[Ti] Título:Serological detection of antibodies to Anaplasma spp., Borrelia burgdorferi sensu lato and Ehrlichia canis and of Dirofilaria immitis antigen in dogs from Costa Rica.
[So] Source:Vet Parasitol;236:97-107, 2017 Mar 15.
[Is] ISSN:1873-2550
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:In a study in Costa Rica 314 serum samples from dogs throughout all seven provinces were tested using a commercial kit for the detection of circulating antibodies against Anaplasma spp., Borrelia burgdorferi sensu lato and Ehrlichia canis, and of circulating antigen of Dirofilaria immitis. A total of 6.4% (20/314) and 38.2% (120/314) were positive for Anaplasma spp. (An) and E. canis (Ec) antibodies. Overall, 8.0% (25/314) were positive for D. immitis (Di) antigen. One single dog reacted positive with B. burgdorferi s.l. (Bb) antigen (0.3%, 1/314). E. canis positive dogs were detected in all provinces (highest percentages in Guanacaste, Puntarenas [both significantly different compared to the overall] and Limón). Guanacaste and Puntarenas also showed the highest prevalences of Anaplasma spp. (both significantly different compared to the overall). The highest prevalence of D. immitis was detected in Puntarenas (significantly different compared to the overall). Double pathogen exposure (Ec plus An; Ec plus Di; Ec plus Bb) were recorded in 8.9% (28/314). Two dogs showed a triple pathogen exposure (0.6%, 2/314; An, Ec and Di). There was a significant difference between male (11.5%, 18/156) and female (4.4%, 7/158) animals for D. immitis positive results. There was also a significant difference between breed and no breed dogs regarding the characteristics of a general positive test, as well as seropositivity to the single pathogens of Anaplasma spp., E. canis and D. immitis. Finally there was a significant difference in the presence of clinical signs again regarding the characteristics of a general positive test, as well as seropositivity to Anaplasma spp., E. canis and D. immitis. Practitioners in Costa Rica should be aware of the canine vector-borne diseases mentioned as dogs are at risk of becoming infected. Concerning the positive B. burgdorferi s.l. dog, an autochthonous occurrence cannot be confirmed due to a history of adoption and an unusual tattoo number. Veterinary advice to protect dogs and limit transmission of vector-borne pathogens, also to humans, by using prophylactic measures is strongly recommended.
[Mh] Termos MeSH primário: Anaplasmose/epidemiologia
Dirofilariose/epidemiologia
Doenças do Cão/epidemiologia
Ehrlichiose/veterinária
Doença de Lyme/veterinária
[Mh] Termos MeSH secundário: Fatores Etários
Anaplasma/isolamento & purificação
Anaplasmose/genética
Anaplasmose/microbiologia
Animais
Anticorpos Antibacterianos/sangue
Antígenos de Helmintos/sangue
Grupo Borrelia Burgdorferi/isolamento & purificação
Costa Rica/epidemiologia
Dirofilaria immitis/isolamento & purificação
Dirofilariose/genética
Dirofilariose/parasitologia
Doenças do Cão/genética
Doenças do Cão/microbiologia
Doenças do Cão/parasitologia
Cães
Ehrlichia canis/isolamento & purificação
Ehrlichiose/epidemiologia
Ehrlichiose/genética
Ehrlichiose/microbiologia
Feminino
Doença de Lyme/epidemiologia
Doença de Lyme/genética
Doença de Lyme/microbiologia
Masculino
Prevalência
Fatores de Risco
Estudos Soroepidemiológicos
Fatores Sexuais
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Antibodies, Bacterial); 0 (Antigens, Helminth)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170908
[Lr] Data última revisão:
170908
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170315
[St] Status:MEDLINE


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[PMID]:28082653
[Au] Autor:Eisen L; Breuner NE; Hojgaard A; Hoxmeier JC; Pilgard MA; Replogle AJ; Biggerstaff BJ; Dolan MC
[Ad] Endereço:Division of Vector-Borne Diseases, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Fort Collins, CO 80521 (evp4@cdc.gov; lfz2@cdc.gov; fth3@cdc.gov; ymm6@cdc.gov; uzp7@cdc.gov; xhk9@cdc.gov; bkb5@cdc.gov; mcd4@cdc.gov) evp4@cdc.gov.
[Ti] Título:Comparison of Vector Efficiency of Ixodes scapularis (Acari: Ixodidae) From the Northeast and Upper Midwest of the United States for the Lyme Disease Spirochete Borrelia mayonii.
[So] Source:J Med Entomol;54(1):239-242, 2017 Jan.
[Is] ISSN:1938-2928
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Borrelia mayonii, a recently recognized species within the Borrelia burgdorferi sensu lato complex, has been detected in host-seeking Ixodes scapularis Say ticks and found to be associated with Lyme disease in the Upper Midwest. This spirochete has, to date, not been documented from the Northeast, but we previously demonstrated that I. scapularis ticks originating from Connecticut are capable of serving as a vector of B. mayonii In this follow-up study, we compared the vector efficiency for B. mayonii (strain MN14-1420) of I. scapularis ticks originating from Minnesota in the Upper Midwest and Connecticut in the Northeast. CD-1 outbred white mice previously infected with B. mayonii via tick bite were exposed to simultaneous feeding by Minnesota and Connecticut larvae contained within separate feeding capsules. We found no difference in the ability of Minnesota and Connecticut larvae to acquire B. mayonii from infected mice and pass spirochetes to the nymphal stage (overall nymphal infection rates of 11.6 and 13.3%, respectively). Moreover, the efficiency of transmission of B. mayonii by single infected nymphs was similar for the Minnesota and Connecticut ticks (33 and 44%, respectively). We conclude that the examined I. scapularis ticks from the Upper Midwest and Northeast did not differ in their efficiency as vectors for B. mayonii.
[Mh] Termos MeSH primário: Vetores Aracnídeos/microbiologia
Grupo Borrelia Burgdorferi/fisiologia
Ixodes/microbiologia
Doença de Lyme/transmissão
[Mh] Termos MeSH secundário: Animais
Vetores Aracnídeos/crescimento & desenvolvimento
Connecticut
Ixodes/crescimento & desenvolvimento
Larva/crescimento & desenvolvimento
Larva/microbiologia
Doença de Lyme/microbiologia
Camundongos
Minnesota
Ninfa/crescimento & desenvolvimento
Ninfa/microbiologia
[Pt] Tipo de publicação:COMPARATIVE STUDY; JOURNAL ARTICLE
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170823
[Lr] Data última revisão:
170823
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170114
[St] Status:MEDLINE
[do] DOI:10.1093/jme/tjw160



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