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https://www.readbyqxmd.com/read/29331578/molecular-detection-and-characterisation-of-babesia-and-theileria-in-australian-hard-ticks
#1
Brooke Storey-Lewis, Ann Mitrovic, Brent McParland
Babesia and Theileria are intraerythrocytic protozoans of the phylum Apicomplexa. These species are capable of infecting wild and domestic animals and have historically caused great economic loss in the agricultural industry. In recent years human babesiosis has been deemed an emerging zoonosis in North America, Europe and Asia. The first locally acquired case of babesiosis in Australia, caused by Babesia microti, was reported in March 2012. A number of native Babesia and Theileria species have been identified in Australian marsupials, however their associated tick vectors and threat to human health is unknown...
December 24, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/29329629/estimates-of-repeatability-and-correlations-of-hemoparasites-infection-levels-for-cattle-reared-in-endemic-areas-for-rhipicephalus-microplus
#2
Rodrigo Giglioti, Henrique Nunes de Oliveira, Talita Barban Bilhassi, Amanda Izeli Portilho, Cintia Hiromi Okino, Cintia Righetti Marcondes, Marcia Cristina de Sena Oliveira
Rhipicephalus microplus is a vector of cattle tick fever, a disease caused by the protozoans Babesia bovisand B. bigemina, and also anaplasmosis, produced by the Rickettsiales Anaplasma marginale. These tick-borne pathogens cause considerable losses to Brazilian livestock breeders and represent an obstacle to the expanded use of taurine breeds due to their higher sensitivity to ticks and hemoparasites compared to zebu breeds. Differences in the susceptibility to hemoparasites were also verified within breeds, suggesting that may be possible to select a most resistant phenotype...
January 30, 2018: Veterinary Parasitology
https://www.readbyqxmd.com/read/29322051/genetic-variation-of-the-%C3%AE-tubulin-gene-of-babesia-caballi-strains
#3
María Guadalupe Montes-Cortés, José Luis Fernández-García, Miguel Ángel Habela Martínez-Estéllez
Background: Equine piroplasmosis is caused by two haemoprotozoan parasites: Babesia caballi and Theileria equi. Negative economic impact on international trade has been associated to endemic sites. This is the reason why carrier detection requires reliable diagnostic methods. Various diagnostic modalities can be used alone or in combination including PCR. However, genetic variation of commonly used genes is still of debate. The aim of this research was to sequence the β-tubulin gene of a B...
September 2017: Journal of Arthropod-borne Diseases
https://www.readbyqxmd.com/read/29309376/a-case-with-pyruvate-kinase-deficiency-remarkably-sensitive-to-heat
#4
Tekin Aksu, Neşe Yarali, Elisa Fermo, Anna Marcello, Şadan Hacisalihoğlu, Paola Bianchi, Namik Y Özbek
Pyruvate kinase (PK) deficiency is the most common defect of the glycolytic pathway leading to congenital hemolytic anemia. We present the case of an 18-year-old boy with chronic nonspherocytic hemolytic anemia, who had remarkable sensitivity to heat. Moreover, the patient showed clinical impairment in the last year. For this reason, we excluded the immunologic or infectious nature (malaria, babesia), which may play a role in the worsening of anemia. Red blood cell enzyme assay showed the presence of a significant increase in other enzyme activities, except for PK, suggesting a PK deficiency in the patient...
January 5, 2018: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/29307783/prevalence-risk-factors-and-genetic-diversity-of-veterinary-important-tick-borne-pathogens-in-cattle-from-rhipicephalus-microplus-invaded-and-non-invaded-areas-of-benin
#5
Paul Franck Adjou Moumouni, Gilbert Luc Aplogan, Hirotaka Katahira, Yang Gao, Huanping Guo, Artemis Efstratiou, Charoonluk Jirapattharasate, Guanbo Wang, Mingming Liu, Aaron Edmond Ringo, Rika Umemiya-Shirafuji, Hiroshi Suzuki, Xuenan Xuan
Babesiosis, theileriosis, anaplasmosis, and heartwater are tick-borne diseases (TBD) that threaten livestock production in sub-Saharan Africa including Benin. This country has been faced with an invasion of Rhipicephalus microplus, a major vector for babesiosis, theileriosis, and anaplasmosis over the last decade. Yet, data on TBD and the impact of the invasive ticks are lacking, making risk level evaluation and disease control arduous. In this study, epidemiological features of Babesia bovis, B. bigemina, Theileria spp...
December 28, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/29304171/mcp-1-kc-like-and-il-8-as-critical-mediators-of-pathogenesis-caused-by-babesia-canis
#6
Asier Galán, Iva Mayer, Renata Barić Rafaj, Krešo Bendelja, Velimir Sušić, José Joaquín Cerón, Vladimir Mrljak
Canine babesiosis caused by the intraerythrocytic protozoan parasite Babesia canis is a tick-borne disease characterized by a host response that involves both cellular and humoral immunity. This study focuses on the secretion of cytokines Granulocyte-Macrophage Colony-Stimulating Factor (GM-CSF), Keratinocyte Chemotactic-like (KC-like), Interleukins (IL)-2, IL-7, IL-8, IL-10, IL-15, IL-18 and Monocyte Chemotactic Protein-1 (MCP-1) in babesiosis caused by Babesia canis upon treatment with Imizol®. We assessed time dependent changes in cytokine levels and tested whether these changes correlate with pathogenesis of the disease...
2018: PloS One
https://www.readbyqxmd.com/read/29302103/babesia-odocoilei-as-a-cause-of-mortality-in-captive-cervids-in-canada
#7
Amélie Mathieu, Adriana R Pastor, Charlene N Berkvens, Carolyn Gara-Boivin, Michel Hébert, Alexandre N Léveillé, John R Barta, Dale A Smith
Nine cases of fatal infection with Babesia odocoilei were confirmed in reindeer (Rangifer tarandus tarandus) and elk (Cervus canadensis) housed in zoological institutions located in southern Quebec, Ontario, and Manitoba, Canada between 2013 and 2016. All animals died of a hemolytic crisis. Frequent postmortem findings were extensive hemorrhage, pigmenturia, and intrahepatic cholestasis. The described ante- and postmortem signs are consistent with those of previously reported cases in the United States. Diagnosis was confirmed in all cases by polymerase chain reaction performed on DNA extracted from whole blood or frozen spleen...
January 2018: Canadian Veterinary Journal. la Revue Vétérinaire Canadienne
https://www.readbyqxmd.com/read/29297802/prevalence-and-molecular-identification-of-piroplasmids-in-iranian-dromedaries-camelus-dromedarius
#8
Somayeh Bahrami, Mohammad Reza Tabandeh, Ali Reza Ganjali Tafreshi
Camels ( Camelus dromedarius) are important, multipurpose local animals in Iran. Despite their importance, camelid parasitic diseases have not received adequate attention in the veterinary literature. The present study investigated the prevalence of, and molecularly identified, camel piroplasms in Iran. Blood samples from 248 camels from five different regions of Iran were screened for the presence of piroplasmid infection using an 18SrRNA polymerase chain reaction (PCR) sequencing method. Of the 248 samples, 16 were positive for piroplasms via PCR (6...
December 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/29291385/serological-detection-and-molecular-characterization-of-piroplasmids-in-equids-in-brazil
#9
Maria Isabel Botelho Vieira, Márcio Machado Costa, Mateus Tonial de Oliveira, Luiz Ricardo Gonçalves, Marcos Rogério André, Rosangela Zacarias Machado
Equine piroplasmosis is a disease caused by the hemoparasites Babesia caballi and Theileria equi and is considered to be the most important parasitic infection affecting Equidae. The objective of the present study was to carry out an epidemiological molecular and serological survey for the presence of these two protozoal organisms in equids from the northwestern region of the State of Rio Grande do Sul (RS), south Brazil. For this purpose, blood samples were collected from 90 equids in the city of Passo Fundo, RS, Brazil...
December 29, 2017: Acta Tropica
https://www.readbyqxmd.com/read/29290581/first-molecular-detection-of-babesia-canis-in-dogs-from-bosnia-and-herzegovina
#10
Agnesa Ćoralić, Simona Gabrielli, Amir Zahirović, Nikola M Stojanović, Giovanni Luigi Milardi, Adnan Jažić, Almedina Zuko, Denis Čamo, Suzana Otašević
Babesia spp. are tick-transmitted protozoan haemoparasites of great economic, veterinary and medical impact worldwide. Herein we reported the very high prevalence of autochthonous babesiosis in symptomatic dogs from Bosnia and Herzegovina in the period from 2014 to 2016. Eighty dogs that did not leave the country were examined using parasitological and molecular analyses and babesiosis was diagnosed in 82.5% and 85.0% of them, respectively (p < 0.001). One species, Babesia canis was identified using molecular methodology (PCR and sequence analysis)...
December 24, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/29279085/tick-borne-infections-in-dogs-and-horses-in-the-state-of-esp%C3%A3-rito-santo-southeast-brazil
#11
Fernanda de Toledo Vieira, Igor Cunha Lima Acosta, Thiago Fernandes Martins, Jonas Moraes Filho, Felipe da Silva Krawczak, Amália Regina Mar Barbieri, Leandro Egert, Danieli Rankel Fernandes, Fabio Ribeiro Braga, Marcelo Bahia Labruna, Reynaldo Dietze
This work aims to identify and quantify the percentage of Rickettsia spp., Ehrlichia spp., Babesia spp. and Hepatozoon spp. positive pet dogs, and to identify ticks collected on these animals in the state of Espírito Santo, in the Southeast region of Brazil. The study included 378 dogs, 226 females and 152 males, of various breeds and ages (mean age of 4.1 years). All animals were examined for ticks, and whole blood was collected and processed by conventional PCR protocols for Babesia spp., Anaplasmataceae, Hepatozoon spp...
January 15, 2018: Veterinary Parasitology
https://www.readbyqxmd.com/read/29279083/discovery-of-a-recombinant-babesia-canis-supernatant-antigen-that-protects-dogs-against-virulent-challenge-infection
#12
K Moubri, J Kleuskens, J Van de Crommert, N Scholtes, T Van Kasteren, S Delbecq, B Carcy, E Précigout, A Gorenflot, Th Schetters
Soluble parasite antigens (SPA) in supernatants of in vitro cultures of Babesia canis can be used to vaccinate dogs against virulent B. canis infection. The moment that immunity becomes apparent coincides with the appearance of antibodies against SPA in the serum of the vaccinated animals. This so-called vaccination-challenge serum (VC-serum) was used to precipitate antigens from B. canis culture supernatants in agarose gels. This antigen preparation was then used to analyse the reactivity of sera from vaccinated dogs on western blots...
January 15, 2018: Veterinary Parasitology
https://www.readbyqxmd.com/read/29277955/tick-borne-illness-after-transplantation-case-and-review
#13
Tresa Reena Mascarenhas, Randi S Silibovsky, Pooja Singh, Katherine Belden
Tick-borne infections in solid organ transplant recipients are an infrequent and difficult diagnostic challenge owing to multiple routes of acquisition and unusual presentations. A 67-year-old male recipient of a combined liver and kidney transplant presented with recurrent fevers following surgery. Standard microbiologic workup was non-diagnostic. Shortness of breath, confusion, lethargy, and hypotension developed along with progressive anemia, requiring multiple blood transfusions. Workup suggested hemolysis and review of the peripheral smear was diagnostic for Babesia microti infection...
December 26, 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/29275874/australian-penguin-ticks-screened-for-novel-borrelia-species
#14
Katherine L Moon, Steven L Chown, Siew-May Loh, Charlotte L Oskam, Ceridwen I Fraser
Lyme borreliosis (or Lyme Disease) is an emerging threat to human health in the Northern Hemisphere caused by tick-borne bacteria from the Borrelia burgdorferi sensu lato (Bbsl) complex. Seabirds are important reservoir hosts of some members of the Bbsl complex in the Northern Hemisphere, and some evidence suggests this may be true of penguins in the Southern Hemisphere. While the Bbsl complex has not been detected in Australia, a novel Borrelia species ('Candidatus Borrelia tachyglossi') was recently sequenced from native ticks (Ixodes holocyclus and Bothriocroton concolor) parasitising echidnas (Tachyglossus aculeatus), suggesting unidentified borreliae may be circulating amongst native wildlife and their ticks...
December 15, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/29274217/evaluation-of-inhibitory-effect-of-redox-active-antimalarial-drug-against-babesia-microti-in-mice
#15
Joanna Szymczak, Julia Kozłowska, Maria Doligalska
Babesiosis is an emerging, tick-transmitted disease caused by the intraerythrocytic parasite Babesia microti. In immunocompetent individuals, B. microti infection quickly resolves after antibabesial treatment. Immunocompromised patients and those of advanced age experience chronic and relapsing babesiosis, accompanied by severe complications and often, a fatal outcome. In these individuals, B. microti infection may persist despite multiple courses of treatment with antiprotozoal drugs. The increasing incidence of human babesiosis caused by B...
2017: Annals of Parasitology
https://www.readbyqxmd.com/read/29258802/a-molecular-algorithm-to-detect-and-differentiate-human-pathogens-infecting-ixodes-scapularis-and-ixodes-pacificus-acari-ixodidae
#16
Christine B Graham, Sarah E Maes, Andrias Hojgaard, Amy C Fleshman, Sarah W Sheldon, Rebecca J Eisen
The incidence and geographic range of tick-borne illness associated with Ixodes scapularis and Ixodes pacificus have dramatically increased in recent decades. Anaplasmosis, babesiosis, and Borrelia spirochete infections, including Lyme borreliosis, account for tens of thousands of reported cases of tick-borne disease every year. Assays that reliably detect pathogens in ticks allow investigators and public health agencies to estimate the geographic distribution of human pathogens, assess geographic variation in their prevalence, and evaluate the effectiveness of prevention strategies...
December 10, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/29258801/diversity-of-borrelia-spirochetes-and-other-zoonotic-agents-in-ticks-from-kyiv-ukraine
#17
Artem Rogovskyy, Maliha Batool, David C Gillis, Patricia J Holman, Igor V Nebogatkin, Yuliya V Rogovska, Maksym S Rogovskyy
Lyme borreliosis (LB) is caused by tick-borne spirochetes of the Borrelia burgdorferi sensu lato complex. LB is the most prevalent vector-borne illness in Ukraine, but current data on the prevalence of LB pathogens in their tick vector, Ixodes ricinus, are lacking. I. ricinus ticks may also carry Borrelia miyamotoi, an emerging relapsing fever group spirochete that has been implicated in human illness. Despite its zoonotic potential, the prevalence of B. miyamotoi in ticks has not been examined in Ukraine. Similarly, data on the prevalence of other important tick-borne pathogens, Anaplasma phagocytophilum, Babesia spp...
December 15, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/29249730/serological-and-molecular-surveys-of-babesia-bovis-and-babesia-bigemina-among-native-cattle-and-cattle-imported-from-thailand-in-hue-vietnam
#18
Thillaiampalam Sivakumar, Dinh Thi Bich Lan, Phung Thang Long, Le Quoc Viet, Gayani Weerasooriya, Aiko Kume, Keisuke Suganuma, Ikuo Igarashi, Naoaki Yokoyama
Serum and DNA from blood samples collected from Vietnamese yellow cattle (n=101) and cattle imported from Thailand (n=54) at a Vietnamese slaughter house were screened for Babesiabovis and Babesiabigemina infections by enzyme-linked immunosorbent assay (ELISA) and PCR. The positive rates determined by ELISA (B. bovis and B. bigemina) or PCR (B. bigemina) in the Vietnamese cattle were significantly higher than those found in Thai cattle. Some PCR-positive Vietnamese animals were ELISA-negative, whereas all PCR-positive Thai cattle were ELISA-positive, suggesting that the animals were infected in Thailand...
December 15, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/29238699/ticks-and-tick-borne-pathogens-of-the-caribbean-current-understanding-and-future-directions-for-more-comprehensive-surveillance
#19
REVIEW
Mathilde Gondard, Alejandro Cabezas-Cruz, Roxanne A Charles, Muriel Vayssier-Taussat, Emmanuel Albina, Sara Moutailler
Ticks are obligate hematophagous arthropods of significant importance to human and veterinary medicine. They transmit a vast array of pathogens, including bacteria, viruses, protozoa, and helminths. Most epidemiological data on ticks and tick-borne pathogens (TBPs) in the West Indies are limited to common livestock pathogens such as Ehrlichia ruminantium, Babesia spp. (i.e., B. bovis and B. bigemina), and Anaplasma marginale, and less information is available on companion animal pathogens. Of note, human tick-borne diseases (TBDs) remain almost completely uncharacterized in the West Indies...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/29227211/babesia-occurrence-in-rodents-in-relation-to-landscapes-of-mainland-southeast-asia
#20
Anamika Karnchanabanthoeng, Serge Morand, Sathaporn Jittapalapong, Bernard Carcy
The purpose of this study is to investigate the relationships between habitat structure and Babesia spp. occurrence in rodents in mainland Southeast Asia. Of 1439 rodents and insectivores investigated, the protist Babesia was found in only 81 individuals (5.6% of the micromammals investigated) with Babesia microti U.S. type the more prevalent (4.1%), followed by the B. microti Kobe type (1.2%), and by the very rare Babesia BiCM002 (0.04%). We used georeferenced data of rodents analyzed for Babesia infection and land cover maps produced for the seven study sites in Thailand, Cambodia, and Lao PDR, where they were collected...
December 11, 2017: Vector Borne and Zoonotic Diseases
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