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Anaplasmosis

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https://www.readbyqxmd.com/read/28063832/the-risk-of-exposure-to-rickettsial-infections-and-human-granulocytic-anaplasmosis-associated-with-ixodes-ricinus-tick-bites-in-humans-in-romania-a-multiannual-study
#1
Ioana Adriana Matei, Zsuzsa Kalmár, Mihaela Lupşe, Gianluca D'Amico, Angela Monica Ionică, Mirabela Oana Dumitrache, Călin Mircea Gherman, Andrei Daniel Mihalca
Anaplasma phagocytophilum and spotted fever group Rickettsia are obligate intracellular Gram-negative tick-borne bacteria, among which several may cause clinical infections in humans. Several Rickettsia spp. and A. phagocytophilum are transmitted in Europe by Ixodes ricinus, the most common tick species feeding on humans in this area. The aim of this study was to evaluate the annual prevalence of Rickettsia spp. and A. phagocytophilum in I. ricinus collected from humans during three consecutive years. The mean prevalences of the infection with the investigated pathogens in I...
December 29, 2016: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28055326/prevalence-and-distribution-of-human-and-tick-infections-with-the-ehrlichia-muris-like-agent-and-anaplasma-phagocytophilum-in-wisconsin-2009-2015
#2
Darby S Murphy, Xia Lee, Scott R Larson, Diep K Hoang Johnson, Theoren Loo, Susan M Paskewitz
Ehrlichiosis and anaplasmosis are important emerging tickborne zoonoses that affect both humans and animals. Knowledge of the geographic distribution and prevalence of Ehrlichia spp. and Anaplasma phagocytophilum in Wisconsin is important information as a baseline for future comparisons. Reported human cases between 2009 and 2015 were identified using the Wisconsin Electronic Disease Surveillance System (WEDSS) and mapped by county of residence. Vector surveillance was established using ticks collected from animals by partners, including veterinary medical clinics, domestic animal shelters, and wildlife rehabilitation centers from 40 Wisconsin counties...
January 5, 2017: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/27993973/anaplasma-marginale-outer-membrane-protein-a-is-an-adhesin-that-recognizes-sialylated-and-fucosylated-glycans-and-functionally-depends-on-an-essential-binding-domain
#3
Kathryn S Hebert, David Seidman, Aminat T Oki, Jerilyn Izac, Sarvani Emani, Lee D Oliver, Daniel P Miller, Brittney K Tegels, Reiji Kannagi, Richard T Marconi, Jason A Carlyon
Anaplasma marginale causes bovine anaplasmosis, a debilitating and potentially fatal tick-borne infection of cattle. Because A. marginale is an obligate intracellular organism, its adhesins that mediate entry into host cells are essential for survival. Here, we demonstrate that A. marginale outer membrane protein A (AmOmpA; AM854) contributes to the invasion of mammalian and tick host cells. AmOmpA exhibits predicted structural homology to OmpA of A. phagocytophilum (ApOmpA), an adhesin that uses key lysine and glycine residues to interact with α2,3-sialylated and α1,3-fucosylated glycan receptors, including 6-sulfo-sialyl Lewis x...
December 19, 2016: Infection and Immunity
https://www.readbyqxmd.com/read/27989814/first-molecular-detection-and-genetic-analysis-of-anaplasma-phagocytophilum-in-shelter-cats-in-seoul-korea
#4
Seung-Hun Lee, Dorene VanBik, Neung-Hee Kim, Sang-Joon Park, Oh-Deog Kwon, Tae-Hwan Kim, Dongmi Kwak
Here, we report the molecular detection of Anaplasma phagocytophilum in shelter cats in Korea and the relationships between A. phagocytophilum gene sequences and the pathogenicity, region, and host specificity of this bacterium. Two (0.9%) out of 222 shelter cats from Seoul, Korea, yielded positive results for the A. phagocytophilum 16S rRNA, groEL, and msp2 genes. Phylogenetic analysis divided groEL gene sequences into two groups (alanine and serine), based on their nucleotide and amino acid sequences. A. phagocytophilum msp2 gene sequences were grouped per the region of isolation (Europe vs...
October 29, 2016: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/27986546/molecular-epidemiological-survey-of-bacterial-and-parasitic-pathogens-in-hard-ticks-from-eastern-china
#5
Xiang-Ye Liu, Xiang-Yao Gong, Chen Zheng, Qi-Yuan Song, Ting Chen, Jing Wang, Jie Zheng, Hong-Kuan Deng, Kui-Yang Zheng
Ticks are able to transmit various pathogens-viruses, bacteria, and parasites-to their host during feeding. Several molecular epidemiological surveys have been performed to evaluate the risk of tick-borne pathogens in China, but little is known about pathogens circulating in ticks from eastern China. Therefore, this study aimed to investigate the presence of bacteria and parasites in ticks collected from Xuzhou, a 11258km(2) region in eastern China. In the present study, ticks were collected from domestic goats and grasses in urban districts of Xuzhou region from June 2015 to July 2016...
December 13, 2016: Acta Tropica
https://www.readbyqxmd.com/read/27977689/tick-borne-diseases-in-turkey-a-review-based-on-one-health-perspective
#6
REVIEW
Abdullah Inci, Alparslan Yildirim, Onder Duzlu, Mehmet Doganay, Serap Aksoy
The importance of tick-borne diseases is increasing all over the world, including Turkey. Global warming, environmental and ecological changes and the existence of suitable habitats increase the impact of ticks and result in frequent emergence or re-emergence of tick-borne diseases (TBDs) with zoonotic characteristics. In Turkey, almost 19 TBDs have been reported in animals and men, involving four protozoa (babesiosis, theileriosis, cytauxzoonosis, hepatozoonosis), one filarial nematode (acanthocheilonemasis), ten bacterial agents (anaplasmosis, ehrlichiosis, aegyptianellosis, tick-borne typhus, Candidatus Rickettsia vini, Lyme borreliosis, tick-borne relapsing fever [TBRF], tularaemia, bartonellosis, and hemoplasmosis), and four viral infections (tick-borne encephalitis [TBE], Crimean-Congo Haemorrhagic Fever [CCHF], louping-ill [LI], and lumpy skin disease [LSD])...
December 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27975075/retrospective-study-investigating-the-seroprevalence-of-anaplasma-phagocytophilum-in-manitoba-canada-2011-2014
#7
Kamran Kadkhoda, Ainsley Gretchen
Human granulocytic anaplasmosis is currently not nationally notifiable in Canada. This for the most part accounts for gross under-estimation of true incidence and prevalence of HGA and would potentially culminate in clinical missed opportunities. To the best of our knowledge, this is the first report on the seroprevalence of Anaplasma phagocytophilum in a Canadian jurisdiction with known established black-legged tick populations.
October 2016: Open Forum Infectious Diseases
https://www.readbyqxmd.com/read/27939637/first-molecular-evidence-of-mixed-infections-of-anaplasma-species-in-dogs-in-henan-china
#8
Yanyan Cui, Yaqun Yan, Xiaoxing Wang, Shuxuan Cao, Yan Zhang, Fuchun Jian, Longxian Zhang, Rongjun Wang, Ke Shi, Changshen Ning
In recent years, tick-borne diseases like anaplasmosis have become widespread worldwide threatening the health of both human and animals. Dogs play an important role in the epidemiology of several zoonotic tick-borne pathogens by acting as reservoirs. In this study, the status of Anaplasma phagocytophilum, A. platys, A. bovis and A. ovis infection were assessed in dogs in Henan, China, with PCR and phylogenetic analyses. Nested PCRs on 243 blood samples collected from dogs from different sampling sites revealed that thirty-three (13...
December 6, 2016: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/27939332/phylogenetic-relationship-and-genotypic-variability-in-anaplasma-marginale-strains-causing-anaplasmosis-in-india
#9
Neena George, Vasundhra Bhandari, Paresh Sharma
Anaplasma marginale is a tick borne rickesttsial parasite known to cause bovine anaplasmosis. There are prevalence reports from different parts of India, however, information regarding genetic diversity and phylogenetic association of the Indian strains are unknown. In the current study, 965 cattle blood samples from two states of India, Seemandhra and Telangana, were investigated for the presence of A. marginale by PCR using major surface protein 4 gene (msp4). We found an overall infection of 16.4%, with 3...
December 6, 2016: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/27925061/molecular-detection-of-anaplasma-species-in-dogs-in-colombia
#10
Giovanni Vargas-Hernandez, Marcos Rogério André, Diana Maria Cendales, Keyla Carstens Marques de Sousa, Luiz Ricardo Gonçalves, Mariana Cristina Hoeppner Rondelli, Rosangela Zacarias Machado, Mirela Tinucci-Costa
Anaplasma platys and A. phagocytophilum are tick-borne pathogens that parasitize platelets and neutrophils, respectively, of humans and animals. The former is the etiological agent of canine cyclic thrombocytopenia, while the latter is that of canine granulocytic anaplasmosis. This work involved the detection and identification of Anaplasma species in blood samples from dogs in Colombia, using molecular techniques. Between December 2008 and April 2009, blood samples were drawn from the cephalic vein of 91 dogs in the central-western region of Colombia (cities of Bogota, Villavicencio and Bucaramanga) and stored in tubes containing EDTA...
October 2016: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/27918952/evaluation-of-nf-%C3%AE%C2%BAb-concentration-in-patients-with-tick-borne-encephalitis-neuroborreliosis-anaplasmosis-and-anaplasma-phagocythophilum-with-tick-borne-encephalitis-virus-co-infection
#11
Anna Moniuszko-Malinowska, Piotr Czupryna, Justyna Dunaj, Renata Swierzbinska, Katarzyna Guziejko, Ryszard Rutkowski, Joanna Zajkowska, Sambor Grygorczuk, Maciej Kondrusik, Sławomir Pancewicz
OBJECTIVES: The aim of the study was the evaluation of NF-κB concentration in serum and cerebrospinal fluid (CSF) of patients with diagnosis of tick-borne diseases: tick-borne encephalitis (TBE), neuroborreliosis (NB), anaplasmosis (ANA) and patients co-infected with tick-borne encephalitis virus and Anaplasma phagocythophilum (TBE+ANA). Additionally NF-κB concentration during acute and convalescent period was compared. METHODS: Sixty-seven patients with diagnosis of tick-borne diseases were included in the study...
December 2, 2016: Cytokine
https://www.readbyqxmd.com/read/27908984/draft-anaplasma-phagocytophilum-genome-sequences-from-five-cows-two-horses-and-one-roe-deer-collected-in-europe
#12
Thibaud Dugat, Marie-Noëlle Rossignol, Olivier Rué, Valentin Loux, Sylvain Marthey, Marco Moroldo, Cornelia Silaghi, Dirk Höper, Julia Fröhlich, Martin Pfeffer, Erich Zweygarth, Anne-Claire Lagrée, Henri-Jean Boulouis, Nadia Haddad
Anaplasma phagocytophilum is a zoonotic tick-borne intracellular bacterium responsible for granulocytic anaplasmosis. As it is difficult to isolate and cultivate, only 20 A. phagocytophilum genomes have been sequenced to date. Here, we present eight A. phagocytophilum genome sequences obtained using alternative approaches based on sequence capture technology.
December 1, 2016: Genome Announcements
https://www.readbyqxmd.com/read/27898670/gray-wolf-exposure-to-emerging-vector-borne-diseases-in-wisconsin-with-comparison-to-domestic-dogs-and-humans
#13
Rocio F Jara, Adrian P Wydeven, Michael D Samuel
World-wide concern over emerging vector-borne diseases has increased in recent years for both animal and human health. In the United Sates, concern about vector-borne diseases in canines has focused on Lyme disease, anaplasmosis, ehrlichiosis, and heartworm which infect domestic and wild canids. Of these diseases, Lyme and anaplasmosis are also frequently diagnosed in humans. Gray wolves (Canis lupus) recolonized Wisconsin in the 1970s, and we evaluated their temporal and geographic patterns of exposure to these four vector-borne diseases in Wisconsin as the population expanded between 1985 and 2011...
2016: PloS One
https://www.readbyqxmd.com/read/27890399/a-partially-purified-outer-membrane-protein-virb9-1-for-low-cost-nanovaccines-against-anaplasma-marginale
#14
Liang Zhao, Antonino S Cavallaro, David Wibowo, Bing Zhang, Jun Zhang, Neena Mitter, Chengzhong Yu, Chun-Xia Zhao, Anton P J Middelberg
Anaplasma marginale is a devastating tick-borne pathogen causing anaplasmosis in cattle and results in significant economic loss to the cattle industry worldwide. Currently, there is no widely accepted vaccine against A. marginale. New generation subunit vaccines against A. marginale, which are much safer, more efficient and cost-effective, are in great need. The A. marginale outer membrane protein VirB9-1 is a promising antigen for vaccination. We previously have shown that soluble recombinant VirB9-1 protein can be expressed and purified from Escherichia coli and induce a high level of humoral and cellular immunity in mice...
January 3, 2017: Vaccine
https://www.readbyqxmd.com/read/27884441/trypanosoma-vivax-in-water-buffalo-of-the-venezuelan-llanos-an-unusual-outbreak-of-wasting-disease-in-an-endemic-area-of-typically-asymptomatic-infections
#15
Herakles A Garcia, Oneyda J Ramírez, Carla M F Rodrigues, Rafael G Sánchez, Angelica M Bethencourt, Gabriela Del M Pérez, Antonio H H Minervino, Adriana C Rodrigues, Marta M G Teixeira
Trypanosoma vivax has been associated with asymptomatic infections in African and South American buffalo. In this study, T. vivax was analyzed in water buffalo (Bubalus bubalis) from Venezuela in a molecular survey involving 293 blood samples collected from 2006 to 2015 across the Llanos region. Results demonstrated constant infections (average 23%) during the years analyzed. In general, animals were healthy carriers of T. vivax with low levels of parasitemia and were diagnosed exclusively by TviCATL-PCR. However, an outbreak of severe acute infections mostly in dairy animals was reported during a prolonged drought affecting 30...
October 30, 2016: Veterinary Parasitology
https://www.readbyqxmd.com/read/27883378/wild-animals-as-reservoirs-of-anaplasma-phagocytophilum-for-humans
#16
Beata Dzięgiel, Łukasz Adaszek, Stanisław Winiarczyk
Anaplasma phagocytophilum is a tick-transmitted obligate-intracellular gram-negative bacteria that causes emerging human zoonosis. A. phagocytophilum is transmitted by Ixodid ticks. Recent studies suggest that wild animals may be reservoirs of A. phagocytophilum for humans. The organism infects and survives within neutrophils. The infection diagnosis is based on the detection of morulae within granulocytes of peripheral blood, results of serological tests and detection of the DNA of A. phagocytophilum using specific polymerase chain reaction assays (PCR)...
2016: Przegla̧d Epidemiologiczny
https://www.readbyqxmd.com/read/27876614/first-molecular-detection-and-genetic-analysis-of-anaplasma-phagocytophilum-in-shelter-cats-in-seoul-korea
#17
Seung-Hun Lee, Dorene VanBik, Neung-Hee Kim, Sang-Joon Park, Oh-Deog Kwon, Tae-Hwan Kim, Dongmi Kwak
Here, we report the molecular detection of Anaplasma phagocytophilum in shelter cats in Korea and the relationships between A. phagocytophilum gene sequences and the pathogenicity, region, and host specificity of this bacterium. Two (0.9%) out of 222 shelter cats from Seoul, Korea, yielded positive results for the A. phagocytophilum 16S rRNA, groEL, and msp2 genes. Phylogenetic analysis divided groEL gene sequences into two groups (alanine and serine), based on their nucleotide and amino acid sequences. A. phagocytophilum msp2 gene sequences were grouped per the region of isolation (Europe vs...
December 2016: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/27860010/detection-of-lyme-disease-and-anaplasmosis-pathogens-via-pcr-in-pennsylvania-deer-ked
#18
M Buss, L Case, B Kearney, C Coleman, J D Henning
Borrelia burgdorferi and Anaplasma phagocytophilum are obligate intracellular parasites that maintain their life cycles in enzoonotic vector-host cycles with Ixodes scapularis as a vector. In addition to ticks, the hosts are commonly infested with insects from the Hippoboscidae family. This study confirms the presence of B. burgdorferi and A. phagocytophilum in deer keds (Lipoptena cervi) removed from white-tailed deer using PCR. Detection of these pathogens in deer ked represents a potential novel susceptibility of wildlife and also suggests the risk of transmission of these pathogens to humans and animals alike through the bite of an infected ectoparasite...
December 2016: Journal of Vector Ecology: Journal of the Society for Vector Ecology
https://www.readbyqxmd.com/read/27812829/anaplasma-phagocytophilum-in-questing-ixodes-ricinus-ticks-in-southwestern-finland
#19
Jani J Sormunen, Ritva Penttinen, Tero Klemola, Eero J Vesterinen, Jari Hänninen
Anaplasma phagocytophilum is the causative agent of an emerging tick-borne disease, human granulocytic anaplasmosis. While the bacterium has been reported from questing ticks in neighboring Sweden, Norway and Russia, the few surveys regarding questing ticks in Finland have thus far been negative. In the current study, the prevalence of A. phagocytophilum in Ixodes ricinus populations was evaluated in several study localities around southwestern Finland during 2013-2014. Some of these populations were previously screened and found negative for A...
December 2016: Experimental & Applied Acarology
https://www.readbyqxmd.com/read/27787614/molecular-diagnosis-of-the-tick-borne-pathogen-anaplasma-marginale-in-cattle-blood-samples-from-nigeria-using-qpcr
#20
Nusirat Elelu, Joana Ferrolho, Joana Couto, Ana Domingos, Mark C Eisler
Tick-borne diseases (TBDs) are some of the most important animal health and management problems in Africa, including Nigeria. This study aims to determine the prevalence of an important TBD, anaplasmosis, in a North-central region of Nigeria. Blood samples were collected from cattle and stored on Whatman FTA(®) cards. Information on village, age and sex associated with each cattle was also recorded. The packed red blood cell volume (PCV) for each blood sample was determined. After DNA extraction, pathogen presence was evaluated by TaqMan(®) based qPCR of which 75...
December 2016: Experimental & Applied Acarology
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