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Babesiosis

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https://www.readbyqxmd.com/read/29047398/microscopic-and-molecular-analysis-of-babesia-canis-in-archived-and-diagnostic-specimens-reveal-the-impact-of-anti-parasitic-treatment-and-postmortem-changes-on-pathogen-detection
#1
Doroteja Huber, Ana Beck, Željka Anzulović, Daria Jurković, Adam Polkinghorne, Gad Baneth, Relja Beck
BACKGROUND: Classification of Babesia parasites has traditionally relied on morphological differentiation based on piroplasm size and shape. Molecular typing has subsequently revealed a more complex taxonomy for these piroplasms than previously thought. To evaluate the factors that influence the morphology of Babesia species upon microscopic examination and hence, their taxonomic classification, we performed detailed characterizations of piroplasms from archival and prospective collections of cytological samples of dogs with piroplasmosis before and after death...
October 18, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/29040727/whole-genome-sequencing-of-african-dogs-provides-insights-into-adaptations-against-tropical-parasites
#2
Yan-Hu Liu, Lu Wang, Tao Xu, Xiaomin Guo, Yang Li, Ting-Ting Yin, He-Chuan Yang, Hu Yang, Adeniyi C Adeola, Oscar J Sanke, Newton O Otecko, Meng Wang, Yaping Ma, Olaogun S Charles, Mikkel-Holger S Sinding, Shyam Gopalakrishnan, José Alfredo Samaniego, Anders J Hansen, Carlos Fernandes, Philippe Gaubert, Jane Budd, Philip M Dawuda, Eli Knispel Rueness, Lubin Jiang, Weiwei Zhai, M T P Gilbert, Min-Sheng Peng, Xiaopeng Qi, Guo-Dong Wang, Ya-Ping Zhang
Natural selection in domestic dogs is of great interest in evolutionary biology since dogs have migrated to every inhabited continent of the world alongside humans, and adapted to diverse environments. Here, we explored their demographic history and genetic basis of adaptation to the tropical African environment using whole genome analyses of 19 African indigenous dogs from Nigeria. Demographic analysis suggests that the ancestors of these dogs migrated into Africa from Eurasia 14,000 years ago and underwent a severe founder effect before population expansion...
October 10, 2017: Molecular Biology and Evolution
https://www.readbyqxmd.com/read/29040286/human-babesiosis-indication-of-a-molecular-mimicry-between-thrombospondin-domains-from-a-novel-babesia-microti-bmp53-protein-and-host-platelets-molecules
#3
Ahmed Abdelmoniem Mousa, Daniel Barry Roche, Mohamad Alaa Terkawi, Kyohko Kameyama, Ketsarin Kamyingkird, Patrick Vudriko, Akram Salama, Shinuo Cao, Sahar Orabi, Hanem Khalifa, Mohamed Ahmed, Mabrouk Attia, Ahmed Elkirdasy, Yoshifumi Nishikawa, Xuenan Xuan, Emmanuel Cornillot
Human babesiosis is caused by the apicomplexan parasite Babesia microti, which is of major public health concern in the United States and elsewhere, resulting in malaise and fatigue, followed by a fever and hemolytic anemia. In this paper we focus on the characterization of a novel B. microti thrombospondin domain (TSP1)-containing protein (BmP53) from the new annotation of the B. microti genome (locus 'BmR1_04g09041'). This novel protein (BmP53) had a single TSP1 and a transmembrane domain, with a short cytoplasmic tail containing a sub-terminal glutamine residue, but no signal peptide and Von Willebrand factor type A domains (VWA), which are found in classical thrombospondin-related adhesive proteins (TRAP)...
2017: PloS One
https://www.readbyqxmd.com/read/29040182/variable-clinical-presentations-of-babesiosis-a-case-series
#4
Pamela Paparone, Philip W Paparone
Human babesiosis continues to spread in multiple regions of the United States. It is transmitted by Ixodes species ticks, as are Lyme disease and anaplasmosis. Its variable clinical presentations, together with serologic detection limitations, require that a high index of clinical suspicion be present for prompt diagnosis. This article discusses case presentations showing the wide range of symptoms and presentations that are possible with babesiosis.
November 16, 2017: Nurse Practitioner
https://www.readbyqxmd.com/read/29034218/deciphering-babesia-vector-interactions
#5
REVIEW
Sandra Antunes, Catarina Rosa, Joana Couto, Joana Ferrolho, Ana Domingos
Understanding host-pathogen-tick interactions remains a vitally important issue that might be better understood by basic research focused on each of the dyad interplays. Pathogens gain access to either the vector or host during tick feeding when ticks are confronted with strong hemostatic, inflammatory and immune responses. A prominent example of this is the Babesia spp.-tick-vertebrate host relationship. Babesia spp. are intraerythrocytic apicomplexan organisms spread worldwide, with a complex life cycle. The presence of transovarial transmission in almost all the Babesia species is the main difference between their life cycle and that of other piroplasmida...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28993284/babesia-microti-infection-and-hemophagocytic-lymphohistiocytosis-in-an-immunocompetent-patient
#6
Shanette A Go, Vania H Phuoc, Sarah E Eichenberg, Zelalem Temesgen, Thomas J Beckman
Babesiosis is a rare and potentially severe tick-borne illness endemic to the Northeastern and upper Midwestern regions of the United States. Hemophagocytic lymphohistiocytosis is an uncommon condition resulting from over-activation of the immune system. We report the first known case of babesiosis and hemophagocytic lymphohistiocytosis in an immunocompetent patient.
October 6, 2017: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/28992923/movement-patterns-of-nilgai-antelope-in-south-texas-implications-for-cattle-fever-tick-management
#7
Aaron M Foley, John A Goolsby, Alfonso Ortega-S, J Alfonso Ortega-S, A Pérez de León, Nirbhay K Singh, Andy Schwartz, Dee Ellis, David G Hewitt, Tyler A Campbell
Wildlife, both native and introduced, can harbor and spread diseases of importance to the livestock industry. Describing movement patterns of such wildlife is essential to formulate effective disease management strategies. Nilgai antelope (Boselaphus tragocamelus) are a free-ranging, introduced ungulate in southern Texas known to carry cattle fever ticks (CFT, Rhipicephalus (Boophilus) microplus, R. (B.) annulatus). CFT are the vector for the etiological agent of bovine babesiosis, a lethal disease causing high mortality in susceptible Bos taurus populations and severely affecting the beef cattle industry...
October 1, 2017: Preventive Veterinary Medicine
https://www.readbyqxmd.com/read/28992325/congenital-babesiosis-after-maternal-infection-with-borrelia-burgdorferi-and-babesia-microti
#8
Kirsten Saetre, Neetu Godhwani, Mazen Maria, Darshan Patel, Guiqing Wang, Karl I Li, Gary P Wormser, Sheila M Nolan
We describe the cases of 2 infants with congenital babesiosis born to mothers with prepartum Lyme disease and subclinical Babesia microti infection. The infants both developed anemia, neutropenia, and thrombocytopenia, and 1 infant required red blood cell transfusion. Both infants recovered with treatment. Additional studies are warranted to define the optimal management strategy for pregnant women with early Lyme disease in geographic areas in which B microti infection is endemic.
September 16, 2017: Journal of the Pediatric Infectious Diseases Society
https://www.readbyqxmd.com/read/28985216/the-babesia-bovis-hap2-gene-is-not-required-for-blood-stage-replication-but-expressed-upon-in-vitro-sexual-stage-induction
#9
Hala E Hussein, Reginaldo G Bastos, David A Schneider, Wendell C Johnson, Fatma K Adham, William C Davis, Jacob M Laughery, David R Herndon, Heba F Alzan, Massaro W Ueti, Carlos E Suarez
Babesia bovis, is a tick borne apicomplexan parasite responsible for important cattle losses globally. Babesia parasites have a complex life cycle including asexual replication in the mammalian host and sexual reproduction in the tick vector. Novel control strategies aimed at limiting transmission of the parasite are needed, but transmission blocking vaccine candidates remain undefined. Expression of HAP2 has been recognized as critical for the fertilization of parasites in the Babesia-related Plasmodium, and is a leading candidate for a transmission blocking vaccine against malaria...
October 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28945680/a-cluster-of-cases-of-babesia-microti-among-neonates-traced-to-a-single-unit-of-donor-blood
#10
Julia R Glanternik, Ian L Baine, Christopher A Tormey, Michelle R Rychalsky, Robert S Baltimore
Three premature infants in one neonatal intensive care unit (NICU) developed transfusion-transmitted babesiosis. Two of the infants developed high-grade parasitemia. All three affected infants were treated and cured with azithromycin and atovaquone. No infant required exchange transfusion. Clinicians should be cognizant that babesiosis may be acquired via blood transfusion.
September 21, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28939494/prevalence-risk-factors-and-vectors-identification-of-bovine-anaplasmosis-and-babesiosis-in-and-around-jimma-town-southwestern-ethiopia
#11
Nejash Abdela, Nuraddis Ibrahim, Feyissa Begna
Among tick-borne diseases, bovine anaplasmosis and babesiosis are considered to be one of the most important in ruminants worldwide, causing significant economic losses in tropical and subtropical areas. This cross-sectional study was therefore undertaken from November 2016 to April 2017 with the objectives to assess the prevalence and potential risk factors associated with bovine anaplasmosis and babesiosis and also to identify the vectors involved in transmission of these diseases in and around Jimma town, south western Ethiopia...
September 19, 2017: Acta Tropica
https://www.readbyqxmd.com/read/28929088/microbial-invasion-vs-tick-immune-regulation
#12
REVIEW
Daniel E Sonenshine, Kevin R Macaluso
Ticks transmit a greater variety of pathogenic agents that cause disease in humans and animals than any other haematophagous arthropod, including Lyme disease, Rocky Mountain spotted fever, human granulocytic anaplasmosis, babesiosis, tick-borne encephalitis, Crimean Congo haemorhagic fever, and many others (Gulia-Nuss et al., 2016). Although diverse explanations have been proposed to explain their remarkable vectorial capacity, among the most important are their blood feeding habit, their long term off-host survival, the diverse array of bioactive molecules that disrupt the host's natural hemostatic mechanisms, facilitate blood flow, pain inhibitors, and minimize inflammation to prevent immune rejection (Hajdušek et al...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28917320/vector-borne-parasitic-infections-in-dogs-in-the-baltic-and-nordic-countries-a-questionnaire-study-to-veterinarians-on-canine-babesiosis-and-infections-with-dirofilaria-immitis-and-dirofilaria-repens
#13
Valentina Tiškina, Pikka Jokelainen
Canine vector-borne diseases have been spreading northwards in Europe, and canine babesiosis and infections with Dirofilaria immitis (heartworm) and Dirofilaria repens have been diagnosed also in the Baltic and the Nordic countries. We used an online questionnaire to survey how large a proportion of veterinarians in the Baltic (Estonia, Latvia, and Lithuania) and the Nordic countries (Denmark, Finland, Iceland, Norway, and Sweden) saw canine babesiosis cases and dogs infected with D. immitis and D. repens in 2016...
September 15, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28906256/variability-of-species-of-babesia-starcovici-1893-in-three-sympatric-ticks-ixodes-ricinus-dermacentor-reticulatus-and-haemaphysalis-concinna-at-the-edge-of-pannonia-in-the-czech-republic-and-slovakia
#14
Marketa Rybarova, Michaela Honsova, Ivo Papousek, Pavel Siroky
The distribution, variability and host specificity of species of Babesia Starcovici, 1893 were studied in questing ticks collected on the northwestern edge of the Pannonian Basin in the south-easternmost part of the Czech Republic and in western Slovakia. The area is characterised by relatively natural floodplain habitats and the sympatric occurrence of three tick species possessing wide host spectra, namely Ixodes ricinus (Linnaeus), Dermacentor reticulatus (Fabricius) and Haemaphysalis concinna Koch. Analysis was carried out on 1,408 I...
August 23, 2017: Folia Parasitologica
https://www.readbyqxmd.com/read/28890784/first-record-of-locally-acquired-human-babesiosis-in-canada-caused-by-babesia-duncani-a-case-report
#15
John D Scott
OBJECTIVES: The aim of this clinical assessment was to ascertain whether a 70-year-old Canadian patient, who had no history of out-of-country travel, had contracted a Babesia infection. METHODS: The adult human male developed constitutional symptoms, which included sweats, chills, and immobilizing fatigue, and was screened for human babesiosis. Subsequent testing included a complete Babesia panel that consisted of B. microti immunoflourescent antibody IgM and IgG, B...
2017: SAGE open medical case reports
https://www.readbyqxmd.com/read/28877743/evaluation-of-the-efficacy-of-sarolaner-simparica%C3%A2-in-the-prevention-of-babesiosis-in-dogs
#16
Thomas Geurden, Robert Six, Csilla Becskei, Steven Maeder, Anne Lloyd, Sean Mahabir, Josephus Fourie, Julian Liebenberg
BACKGROUND: Canine babesiosis is a clinically significant emerging vector-borne disease caused among others by the protozoan Babesia canis. The efficacy of sarolaner (Simparica®; Zoetis; at the minimum recommended label dose of 2.0 mg per kg bodyweight) in the prevention of babesiosis was evaluated in twenty-four dogs randomly allocated to either a placebo-treated group or one of two sarolaner-treated groups. At 21 or 28 days after treatment administration, dogs were infested with 50 ± 4 Dermacentor reticulatus ticks of which 25% were confirmed to be infected with Babesia canis...
September 6, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28872685/inactivation-of-babesia-microti-in-red-blood-cells-and-platelet-concentrates
#17
Laura Tonnetti, Andrew Laughhunn, Aaron M Thorp, Irina Vasilyeva, Kent Dupuis, Adonis Stassinopoulos, Susan L Stramer
BACKGROUND: With an increasing number of recognized transfusion-transmitted (TT) babesiosis cases, Babesia microti is the most frequently TT parasite in the United States. We evaluated the inactivation of B. microti in red blood cells (RBCs) prepared in Optisol (AS-5) using amustaline and glutathione (GSH) and in platelet components (PCs) in 100% plasma using amotosalen and low-energy ultraviolet A (UVA) light. STUDY DESIGN AND METHODS: Individual RBCs and apheresis PCs were spiked with B...
October 2017: Transfusion
https://www.readbyqxmd.com/read/28871243/first-molecular-detection-of-babesia-gibsoni-in-dogs-from-wuhan-china
#18
Lan He, Xiaoyan Miao, Jinfang Hu, Yuan Huang, Pei He, Junwei He, Long Yu, Ngabu Malobi, Ligang Shi, Junlong Zhao
Canine piroplasmosis is a significant disease in dogs caused by Babesia and Theileria parasites. The clinical manifestations range from mild illness to serious disease depending on the parasite species and the physical condition of the infected dog. Canine piroplasmosis has been reported to be prevalent in China. However, no molecular evidence of the disease has been reported in pet dogs from Wuhan. In this study, 118 blood samples were randomly collected from pet dogs in veterinary clinics. The blood samples were subjected to both microscopic examination and reverse line blot (RLB) hybridization assays to detect piroplasm infection...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28869191/co-infection-with-babesia-divergens-and-anaplasma-phagocytophilum-in-cattle-bos-taurus-sweden
#19
Martin O Andersson, Bronislava Víchová, Conny Tolf, Sandra Krzyzanowska, Jonas Waldenström, Maria E Karlsson
Babesiosis is a severe disease in cattle worldwide. In Europe, the main causative agent of bovine babesiosis is Babesia divergens. In some areas, this species is reported to have declined or even disappeared, and its etiological role overtaken by other piroplasmid species. Moreover, co-infection with other tick-transmitted pathogens can be expected to complicate diagnosis in cattle. Hence, molecular identification of the causative agent of babesiosis should be a priority. Therefore, samples from 71 domestic cattle, 39 with clinical signs of babesiosis and 32 without, from southern Sweden were screened for Babesia spp...
August 24, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28807287/an-elisa-for-the-early-diagnosis-of-acute-canine-babesiosis-detecting-circulating-antigen-of-large-babesia-spp
#20
Ramon M Eichenberger, Saša Štefanić, Torsten J Naucke, Mindaugas Šarkūnas, Gintaras Zamokas, Felix Grimm, Peter Deplazes
Babesia canis is the predominant Babesia species in dogs in Europe and is responsible for a severe and fatal disease. An increase in global pet tourism and a widening of the geographic distribution of the tick vector has led to the emergence of infections in areas where previously only imported cases have been reported. Due to the potential for rapid and serious disease progression, direct parasite detection by stained blood smears and light microscopy or DNA-based methods have traditionally been used for the diagnosis of acute infections...
August 30, 2017: Veterinary Parasitology
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