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Anaplasma

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https://www.readbyqxmd.com/read/28335825/canine-tick-borne-diseases-in-pet-dogs-from-romania
#1
Martin O Andersson, Conny Tolf, Paula Tamba, Mircea Stefanache, Jonas Waldenström, Gerhard Dobler, Lidia Chițimia-Dobler
BACKGROUND: Tick-borne diseases are of substantial concern worldwide for animals as well as humans. Dogs have been a human companion for millennia, and their significant impact on human life renders disease in dogs to be of great concern. Tick-borne diseases in dogs represent a substantial diagnostic challenge for veterinarians in that clinical signs are often diffuse and overlapping. In addition, co-infections with two or more pathogens enhance this problem further. Molecular methods are useful to disentangle co-infections and to accurately describe prevalence and geographical distribution of tick-borne diseases...
March 23, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28335329/nanoparticle-based-delivery-of-anaplasma-marginale-membrane-proteins-virb9-1-and-virb10-produced-in-the-pichia-pastoris-expression-system
#2
Bing Zhang, Antonio S Cavallaro, Karishma T Mody, Jun Zhang, James R Deringer, Wendy C Brown, Timothy J Mahony, Chengzhong Yu, Neena Mitter
Bovine anaplasmosis or cattle-tick fever is a tick-borne haemolytic disease caused by the rickettsial haemoparasite Anaplasma marginale in tropical and subtropical areas of the world. While difficult to express, the proteins VirB9-1 and VirB10 are immunogenic components of the outer membrane type IV secretion system that have been identified as candidate antigens for vaccines targeting of A. marginale. Soluble VirB9-1 and VirB10 were successfully expressed using Pichia pastoris. When formulated with the self-adjuvanting silica vesicles, SV-100 (diameter: 50 nm, and pore entrance size: 6 nm), 200 µg of VirB9-1 and VirB10 were adsorbed per milligram of nanoparticle...
November 5, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28331130/cytopenias-and-clonal-expansion-of-gamma-delta-t-cells-in-a-patient-with-anaplasmosis-a-potential-diagnostic-pitfall
#3
Daniel Marko, Anamarija M Perry, Arjuna Ponnampalam, Michel R Nasr
Human granulocytic anaplasmosis is a rare, tick-borne infectious disease caused by Anaplasma phagocytophilum. Herein, we report a rare case of human granulocytic anaplasmosis associated with cytopenias and clonal expansion of gamma/delta T-cells in the bone marrow. A 77-year old man presented multiple times to the emergency department complaining of muscle weakness. Complete blood count detected cytopenias and peripheral blood smear showed pseudo Pelger-Huet neutrophils. These findings prompted bone marrow evaluation with ancillary studies including flow cytometry, karyotyping and T-cell rearrangement studies...
2017: Journal of Clinical and Experimental Hematopathology: JCEH
https://www.readbyqxmd.com/read/28322187/influence-of-genetic-background-on-hematologic-and-histopathologic-alterations-during-acute-granulocytic-anaplasmosis-in-129-svev-and-c57bl-6j-mice-lacking-type-i-and-type-ii-interferon-signaling
#4
Jennifer L Johns Marielle L Discipulo Amanda L Koehne Kaitlin A Moorhead And Claude M Nagamine
The role of host type I IFN signaling and its interaction with other immune pathways during bacterial infections is incompletelyunderstood. Type II IFN signaling plays a key role during numerous bacterial infections including granulocytic anaplasmosis (GA)caused by Anaplasma phagocytophilum infection. The function of combined type I and type II IFN signaling and their potentialsynergism during GA and similar tick-borne diseases is a topic of current research investigation. The goal of this study was toevaluate 2 mouse models of absent type I/type II IFN signaling in experimental A...
March 20, 2017: Comparative Medicine
https://www.readbyqxmd.com/read/28298245/serological-and-molecular-prevalence-of-canine-vector-borne-diseases-cvbds-in-korea
#5
Guk-Hyun Suh, Kyu-Sung Ahn, Jong-Ho Ahn, Ha-Jung Kim, Christian Leutenegger, SungShik Shin
BACKGROUND: Previous surveys in dogs from Korea indicated that dogs are exposed to a variety of vector- borne pathogens, but perception for a nation-wide canine vector-borne disease (CVBD) occurrence has been missing. We report here results of both serological and molecular prevalence studies for major CVBDs of dogs from all over the South Korean Peninsula except for Jeju Island. RESULTS: Serological survey of 532 outdoor dogs revealed the highest prevalence for Dirofilaria immitis (25...
March 16, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28288773/serological-detection-of-antibodies-to-anaplasma-spp-borrelia-burgdorferi-sensu-lato-and-ehrlichia-canis-and-of-dirofilaria-immitis-antigen-in-dogs-from-costa-rica
#6
Víctor M Montenegro, Marta C Bonilla, Darwin Kaminsky, Juan José Romero-Zúñiga, Susanne Siebert, Friederike Krämer
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...
March 15, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28285601/canine-leishmaniosis-caused-by-leishmania-major-and-leishmania-tropica-comparative-findings-and-serology
#7
Gad Baneth, Daniel Yasur-Landau, Matan Gilad, Yaarit Nachum-Biala
BACKGROUND: Infection and clinical disease associated with Leishmania major and Leishmania tropica, two common agents of human cutaneous leishmaniosis, have rarely been reported in dogs. This study describes dogs infected with these Leishmania spp. prevalent in the Middle East and North Africa, and compares the serological response of dogs infected with Leishmania infantum, L. major or L. tropica to whole promastigote antigen enzyme-linked immunosorbent assay (ELISA) of each species and to rK39 dipstick...
March 13, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28285597/prevalence-study-and-risk-factor-analysis-of-selected-bacterial-protozoal-and-viral-including-vector-borne-pathogens-in-cats-from-cyprus
#8
Charalampos Attipa, Kostas Papasouliotis, Laia Solano-Gallego, Gad Baneth, Yaarit Nachum-Biala, Elpida Sarvani, Toby G Knowles, Sena Mengi, David Morris, Chris Helps, Séverine Tasker
BACKGROUND: Feline infectious agent studies are lacking in Cyprus. The aims of this study were to determine the prevalence and risk factors for various feline infectious agents, including feline vector-borne pathogens (FVBP), in cats from Cyprus. METHODS: A cross-sectional, descriptive, multicentre study was performed on 174 feline samples [138 owned and 36 shelter-feral, including both healthy (43) and non-healthy (131), cats] from private veterinary clinics from all six districts of Cyprus...
March 13, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28285585/searching-for-lyme-borreliosis-in-australia-results-of-a-canine-sentinel-study
#9
Peter J Irwin, Ian D Robertson, Mark E Westman, Martine Perkins, Reinhard K Straubinger
BACKGROUND: Lyme borreliosis is a common tick-borne disease of the northern hemisphere that is caused by bacterial spirochaetes of the Borrelia burgdorferi (sensu lato) (Bbsl) complex. To date, there has been no convincing evidence for locally-acquired Lyme borreliosis on the Australian continent and there is currently a national debate concerning the nature and distributions of zoonotic tick-transmitted infectious disease in Australia. In studies conducted in Europe and the United States, dogs have been used as sentinels for tick-associated illness in people since they readily contact ticks that may harbour zoonotic pathogens...
March 13, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28285583/molecular-detection-of-vector-borne-pathogens-in-blood-and-splenic-samples-from-dogs-with-splenic-disease
#10
Rebeca Movilla, Laura Altet, Lorena Serrano, María-Dolores Tabar, Xavier Roura
BACKGROUND: The spleen is a highly perfused organ involved in the immunological control and elimination of vector-borne pathogens (VBP), which could have a fundamental role in the pathogenesis of splenic disease. This study aimed to evaluate certain VBP in samples from dogs with splenic lesions. METHODS: Seventy-seven EDTA-blood and 64 splenic tissue samples were collected from 78 dogs with splenic disease in a Mediterranean area. Babesia spp., Bartonella spp., Ehrlichia/Anaplasma spp...
March 13, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28284610/association-of-ehrlichia-canis-hemotropic-mycoplasma-spp-and-anaplasma-platys-and-severe-anemia-in-dogs-in-thailand
#11
Gunn Kaewmongkol, Nicha Lukkana, Sarawut Yangtara, Sarawan Kaewmongkol, Naris Thengchaisri, Theerapol Sirinarumitr, Sathaporn Jittapalapong, Stanley G Fenwick
Canine tick-borne bacteria; Ehrlichia canis, hemotropic Mycoplasma spp. and Anaplasma spp., are organisms transmitted by Rhipicephalus sanguineus ticks. However, only a few clinical studies evaluating dogs infected with these organisms and anemia condition have been published. In this study, the potential tick-borne bacteria linked to anemia were investigated in eighty-one blood samples selected from anemic dogs using a broad range nested-PCR of the 16S rRNA gene. Positive results were shown in 12/81 blood specimens (14...
March 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/28281774/parasites-of-domestic-and-wild-animals-in-south-africa-l-ixodid-ticks-infesting-horses-and-donkeys
#12
Ivan G Horak, Heloise Heyne, Ali Halajian, Shalaine Booysen, Willem J Smit
The aim of the study was to determine the species spectrum of ixodid ticks that infest horses and donkeys in South Africa and to identify those species that act as vectors of disease to domestic livestock. Ticks were collected opportunistically from 391 horses countrywide by their owners or grooms, or by veterinary students and staff at the Faculty of Veterinary Science, University of Pretoria. Ticks were also collected from 76 donkeys in Limpopo Province, 2 in Gauteng Province and 1 in North West province...
February 28, 2017: Onderstepoort Journal of Veterinary Research
https://www.readbyqxmd.com/read/28270232/melting-pot-of-tick-borne-zoonoses-the-european-hedgehog-contributes-to-the-maintenance-of-various-tick-borne-diseases-in-natural-cycles-urban-and-suburban-areas
#13
Setareh Jahfari, Sanne C Ruyts, Ewa Frazer-Mendelewska, Ryanne Jaarsma, Kris Verheyen, Hein Sprong
BACKGROUND: European hedgehogs (Erinaceus europaeus) are urban dwellers and host both Ixodes ricinus and Ixodes hexagonus. These ticks transmit several zoonotic pathogens like Borrelia burgdorferi (sensu lato), Anaplasma phagocytophilum, Rickettsia helvetica, Borrelia miyamotoi and "Candidatus Neoehrlichia mikurensis". It is unclear to what extent hedgehogs in (sub) urban areas contribute to the presence of infected ticks in these areas, which subsequently pose a risk for acquiring a tick-borne disease...
March 7, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28261565/borrelia-diversity-and-co-infection-with-other-tick-borne-pathogens-in-ticks
#14
Cristian Raileanu, Sara Moutailler, Ionuţ Pavel, Daniela Porea, Andrei D Mihalca, Gheorghe Savuta, Muriel Vayssier-Taussat
Identifying Borrelia burgdorferi as the causative agent of Lyme disease in 1981 was a watershed moment in understanding the major impact that tick-borne zoonoses can have on public health worldwide, particularly in Europe and the USA. The medical importance of tick-borne diseases has long since been acknowledged, yet little is known regarding the occurrence of emerging tick-borne pathogens such as Borrelia spp., Anaplasma phagocytophilum, Rickettsia spp., Bartonella spp., "Candidatus Neoehrlichia mikurensis", and tick-borne encephalitis virus in questing ticks in Romania, a gateway into Europe...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28257433/a-comparison-of-nonlinear-mixed-models-and-response-to-selection-of-tick-infestation-on-lambs
#15
Panya Sae-Lim, Lise Grøva, Ingrid Olesen, Luis Varona
Tick-borne fever (TBF) is stated as one of the main disease challenges in Norwegian sheep farming during the grazing season. TBF is caused by the bacterium Anaplasma phagocytophilum that is transmitted by the tick Ixodes ricinus. A sustainable strategy to control tick-infestation is to breed for genetically robust animals. In order to use selection to genetically improve traits we need reliable estimates of genetic parameters. The standard procedures for estimating variance components assume a Gaussian distribution of the data...
2017: PloS One
https://www.readbyqxmd.com/read/28255923/transmission-differentials-for-multiple-pathogens-as-inferred-from-their-prevalence-in-larva-nymph-and-adult%C3%A2-of-ixodes-ricinus-acari-ixodidae
#16
Per M Jensen, Christian S Christoffersen, Sara Moutailler, Lorraine Michelet, Kirstine Klitgaard, Rene Bødker
Ixodes ricinus serves as vector for a range of microorganisms capable of causing clinical illness in humans. The microorganisms occur in the same vector populations and are generally affected by the same tick-host interactions. Still, the instars have different host preferences which should manifest in different transmission patterns for various microorganisms in the tick populations, i.e., most microorganisms increase in prevalence rate from larvae to nymphs because their reservoirs are among small mammals and birds that serve as blood hosts for larvae...
March 2, 2017: Experimental & Applied Acarology
https://www.readbyqxmd.com/read/28250258/molecular-detection-and-characterization-of-anaplasma-species-in-wild-deer-and-boars-in-gifu-prefecture-japan
#17
Kayoko Matsuo, Junji Moribe, Niichiro Abe
No abstract text is available yet for this article.
February 28, 2017: Japanese Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28248955/first-identification-of-rickettsia-helvetica-in-questing-ticks-from-a-french-northern-brittany-forest
#18
Sarah I Bonnet, Richard E L Paul, Emmanuel Bischoff, Martine Cote, Evelyne Le Naour
Tick-borne rickettsiae are considered to be emerging, but data about their presence in western Europe are scarce. Ixodes ricinus ticks, the most abundant and widespread tick species in western Europe, were collected and tested for the presence of several tick-borne pathogens in western France, a region never previously explored in this context. There was a high tick abundance with a mean of 4 females, 4.5 males, and 23.3 nymphs collected per hour per collector. Out of 622 tested ticks, specific PCR amplification showed the presence of tick symbionts as well as low prevalence of Borrelia burgdorferi (0...
March 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28241784/genetic-profiling-for-anaplasma-and-ehrlichia-species-in-ticks-collected-in-the-eastern-cape-province-of-south-africa
#19
Benson C Iweriebor, Elia J Mmbaga, Abiodun Adegborioye, Aboi Igwaran, Larry C Obi, Anthony I Okoh
BACKGROUND: Anaplasma and Ehrlichia are emerging tick-borne pathogens that cause anaplasmosis and ehrlichiosis in humans and other animals worldwide. Infections caused by these pathogens are deadly if left untreated. There has been relatively no systematic survey of these pathogens among ticks in South Africa, thus necessitating this study. The presence of Anaplasma and Ehrlichia species were demonstrated by PCR in ticks collected from domestic ruminants at some selected communities in the Eastern Cape of South Africa...
February 27, 2017: BMC Microbiology
https://www.readbyqxmd.com/read/28238642/detection-of-borrelia-burgdorferi-sensu-lato-and-anaplasma-phagocytophilum-in-questing-ticks-ixodes-ricinus-from-the-czech-republic
#20
Kateřina Kybicová, Kateřina Baštová, Marek Malý
The aim of the present study is to compare the prevalence of Borrelia burgdorferi sensu lato (s.l.) and Anaplasma phagocytophilum in questing ticks by using molecular methods from spring to autumn 2007. A total of 526 Ixodes ricinus ticks were collected from vegetation in three different sampling sites, representing an urban area (city park), a suburban area (village) and a natural montane habitat. The prevalence of B. burgdorferi s.l. was 17.3% (7.5% in males, 18.7% in females and 20.2% in nymphs), while 4...
February 20, 2017: Ticks and Tick-borne Diseases
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