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https://www.readbyqxmd.com/read/29333799/tick-borne-relapsing-fever-with-severe-jarisch-herxheimer-reaction
#1
Yael Koton, Naiel Bisharat
No abstract text is available yet for this article.
January 2018: Israel Medical Association Journal: IMAJ
https://www.readbyqxmd.com/read/29331578/molecular-detection-and-characterisation-of-babesia-and-theileria-in-australian-hard-ticks
#2
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/29330092/a-novel-double-antigen-sandwich-elisa-for-the-species-independent-detection-of-crimean-congo-hemorrhagic-fever-virus-specific-antibodies
#3
Miriam A Sas, Loic Comtet, Fabien Donnet, Marc Mertens, Zati Vatansever, Noel Tordo, Philippe Pourquier, Martin H Groschup
Crimean-Congo hemorrhagic fever (CCHF) is a tick-borne disease in humans caused by the CCHF virus (CCHFV). The detection of anti-CCHFV antibodies in animals is used to reveal infection risk areas. Therefore a simple, quick and reliable multispecies assay for the detection of CCHFV-specific antibodies is needed. This work presents the development and validation of a novel CCHF double-antigen ELISA for the detection of anti-CCHFV nucleoprotein antibodies. The test requires 30 μl of serum, and results are obtained within 90 min...
January 9, 2018: Antiviral Research
https://www.readbyqxmd.com/read/29329935/tick-borne-pathogen-detection-what-s-new
#4
Alejandro Cabezas-Cruz, Muriel Vayssier-Taussat, Gilbert Greub
Ticks and the pathogens they transmit constitute a growing burden for human and animal health worldwide. Traditionally, tick-borne pathogen detection has been carried out using PCR-based methods that rely in known sequences for specific primers design. This approach matches with the view of a 'single-pathogen' epidemiology. Recent results, however, have stressed the importance of coinfections in pathogen ecology and evolution with impact in pathogen transmission and disease severity. New approaches, including high-throughput technologies, were then used to detect multiple pathogens, but they all need a priori information on the pathogens to search...
January 9, 2018: Microbes and Infection
https://www.readbyqxmd.com/read/29329785/a-relapsing-fever-group-borrelia-sp-is-widely-distributed-among-wild-deer-in-japan
#5
Yumi Kumagai, Kozue Sato, Kyle R Taylor, Aya Zamoto-Niikura, Koichi Imaoka, Shigeru Morikawa, Makoto Ohnishi, Hiroki Kawabata
A relapsing fever group Borrelia sp. was detected from the blood of wild deer (Cervus nippon) in Japan. The Borrelia sp. was distributed nationwide among deer with an overall prevalence of 26% in blood samples. The prevalence of infection was significantly higher in fawns (48.4%) compared to adult deer (23.6%). Sequencing analysis reveals that this Borrelia sp. belongs to the hard tick-borne relapsing fever borreliae, and that it forms a single lineage based on sequences of the flagellin and glycerophosphodiester phosphodiesterase genes...
December 28, 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
#6
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/29329620/determination-and-validation-of-discriminating-concentration-of-ivermectin-against-rhipicephalus-microplus
#7
Abhijit Nandi, Sharath V Sagar, Gajanan Chigure, Ashutosh Fular, Anil Kumar Sharma, Gaurav Nagar, Sachin Kumar, B C Saravanan, Srikant Ghosh
Rhipicephalus microplus, the major cattle tick species of India is prevalent all over the country and causes huge economic loss directly or indirectly to the dairy industries. Chemical acaricides are playing an important role in managing tick infestations on livestock for many years and consequently, resistance to commonly used organophosphate (OP) and synthetic pyrethroid (SP) compounds has been reported. Subsequently, ivermectin (IVM) has been emerged as an alternative to manage OP and SP resistant ticks...
January 30, 2018: Veterinary Parasitology
https://www.readbyqxmd.com/read/29327963/antemortem-diagnosis-of-coxiellosis-in-a-blue-and-gold-macaw-ara-ararauna
#8
Alison J Flanders, Justin F Rosenberg, Marjorie Bercier, Mary K Leissinger, Laura J Black, Robson F Giglio, Serena L M Craft, Whitney M Zoll, April L Childress, James F X Wellehan
A 15-year-old female blue and gold macaw ( Ara ararauna) was presented for evaluation after being found laterally recumbent, reluctant to move, and lethargic. Results of a complete blood count showed an increased number of immature heterophils with increased cytoplasmic basophilia and degranulation and the presence of a left shift. Radiographs and a computed tomography scan were performed and revealed a markedly enlarged spleen. An ultrasound-guided fine-needle aspirate of the spleen was submitted for cytologic examination and aerobic bacterial culture...
December 2017: Journal of Avian Medicine and Surgery
https://www.readbyqxmd.com/read/29325969/population-structure-and-genetic-diversity-of-rhipicephalus-microplus-in-zimbabwe
#9
Marvelous Sungirai, Samantha Baron, Nicolaas A Van der Merwe, Doreen Zandile Moyo, Patrick De Clercq, Christine Maritz-Olivier, Maxime Madder
Recently there was an expansion in the geographic range of Rhipicephalus microplus in Zimbabwe. In order to understand gene flow patterns and population structure in this highly invasive and adaptable cattle tick, a population genetics study was carried out. Eighty-seven R. microplus tick samples drawn from 5 distinct populations were genotyped using eight polymorphic microsatellite loci. Genetic diversity (He) was high (0.755-0.802) in all the populations, suggesting high levels of gene flow with 97% of genetic variation found within populations and 3% amongst populations...
January 8, 2018: Acta Tropica
https://www.readbyqxmd.com/read/29325865/emerging-discrepancies-in-conventional-and-molecular-epidemiology-of-methicillin-resistant-staph-aureus-isolated-from-bovine-milk
#10
Amjad Islam Aqib, Muhammad Ijaz, Shahid Hussain Farooqi, Rais Ahmed, Muhammad Shoaib, Muhammad Muddassir Ali, Khalid Mehmood, Hui Zhang
Methicillin resistant Staph aureus (MRSA) is an emerging public health concern from dairy milk, and its diagnosis by phenotypic methodology is experiencing higher discrepancies. The present study was planned to estimate discrepancies in phenotypic identification of MRSA and MSSA (Methicillin sensitive Staph aureus) in relation to mecA, and prevalent risk factors from various localities. In-vitro oxacilline antibiotic disks were used for phenotypic identification of MRSA, whereas mecA gene was used as MRSA marker in Staph aureus by PCR...
January 8, 2018: Microbial Pathogenesis
https://www.readbyqxmd.com/read/29324725/west-nile-virus-and-other-nationally-notifiable-arboviral-diseases-united-states-2016
#11
Alexis Burakoff, Jennifer Lehman, Marc Fischer, J Erin Staples, Nicole P Lindsey
Arthropod-borne viruses (arboviruses) are transmitted to humans primarily through the bites of infected mosquitoes and ticks. West Nile virus (WNV) is the leading cause of domestically acquired arboviral disease in the continental United States (1,2). Other arboviruses, including La Crosse, Powassan, Jamestown Canyon, St. Louis encephalitis, and eastern equine encephalitis viruses, cause sporadic cases of disease and occasional outbreaks. This report summarizes surveillance data reported to CDC for 2016 for nationally notifiable arboviruses...
January 12, 2018: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/29324047/the-discovery-of-arthropod-specific-viruses-in-hematophagous-arthropods-an-open-door-to-understanding-the-mechanisms-of-arbovirus-and-arthropod-evolution
#12
Charles H Calisher, Stephen Higgs
The discovery of an odd virus from hematophagous arthropods 40 years ago by Stollar and Thomas described cell fusing agent virus in cells derived from Aedes aegypti mosquitoes. Then came the report of Kamiti River virus from Ae. macintoshi in 1999, followed by worldwide reports of the discovery of other viruses of mosquitoes, ticks, and midges that replicate only in arthropods and not in vertebrates or in vertebrate cells. These viruses (now totaling at least 64 published) have genomes analogous to viruses in various families that include arboviruses and nonarboviruses...
January 7, 2018: Annual Review of Entomology
https://www.readbyqxmd.com/read/29322674/exposure-to-west-nile-virus-and-tick-borne-encephalitis-virus-in-dogs-in-spain
#13
I García-Bocanegra, E Jurado-Tarifa, D Cano-Terriza, R Martínez, J E Pérez-Marín, S Lecollinet
In the past decade, the spread of emerging zoonotic flaviviruses (genus Flavivirus, family Flaviviridae) has been reported in many regions worldwide, representing a threat to both human and animal health. A serosurvey was carried out to assess exposure and risk factors associated with antigenically related flaviviruses, particularly West Nile virus (WNV), Usutu virus (USUV) and tick-borne encephalitis virus (TBEV), in dogs in Spain. Flavivirus antibodies were detected in 39 of 815 dogs (4.8%; 95% CI: 3.3-6...
January 11, 2018: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/29321939/isolation-of-rickettsia-amblyommatis-in-huvec-line
#14
S Santibáñez, A Portillo, A M Palomar, J A Oteo
Rickettsia amblyommatis, formerly named Rickettsia amblyommii and 'Candidatus Rickettsia amblyommii' is an intracellular bacterium belonging to the spotted fever group Rickettsia. It is highly prevalent in Amblyomma americanum and in other Amblyomma spp. throughout the Western Hemisphere. R. amblyommatis has been cultivated in chicken fibroblast, primary embryonated chicken eggs, Vero cells and arthropod-derived cells. Because of the affinity of rickettsiae to invade vascular endothelial cells, we tried to isolate R...
January 2018: New Microbes and New Infections
https://www.readbyqxmd.com/read/29321318/viperin-restricts-zika-virus-and-tick-borne-encephalitis-virus-replication-by-targeting-ns3-for-proteasomal-degradation
#15
Christakis Panayiotou, Richard Lindqvist, Chaitanya Kurhade, Kirstin Vonderstein, Jenny Pasto, Karin Edlund, Arunkumar S Upadhyay, Anna K Överby
Flaviviruses are arthropod-borne viruses that constitute a major global health problem, with millions of human infections annually. Their pathogenesis ranges from mild illness to severe manifestations such as hemorrhagic fever and fatal encephalitis. Type I interferons (IFNs) are induced in response to viral infection, and stimulate the expression of interferon-stimulated genes (ISGs), including that encoding viperin (virus-inhibitory protein, endoplasmic reticulum-associated, IFN-inducible), which shows antiviral activity against a broad spectrum of viruses including several flaviviruses...
January 10, 2018: Journal of Virology
https://www.readbyqxmd.com/read/29318733/culture-change-and-mandating-quality-improvement
#16
Thomas Bartlett, Edward Hewertson, Michael Vassallo
BACKGROUND: A mandatory programme of quality improvement (QI) education was developed for newly qualified Foundation Year 1 (FY1) doctors to complete their curriculum requirements. Their perceptions were evaluated to refine the programme. METHODS: The programme delivered theoretical and experiential learning. Participants were asked to form groups and to come up with their own projects addressing the areas of need that they had identified. The 9-month group project included formal teaching and a formal presentation to the hospital...
January 10, 2018: Clinical Teacher
https://www.readbyqxmd.com/read/29317885/seroprevalence-and-risk-factors-for-theileria-equi-infection-in-equines-from-khyber-pakhtunkhwa-province-pakistan
#17
Muhammad Jamal Khan Afridi, Abdul Hafeez Mian, Muhammad Saqib, Ghazanfar Abbas, Javid Ali, Muhammad Khalid Mansoor, Awais Ur Rahman Sial, Imaad Rasheed, Muhammad Hammad Hussain
Background: Theileria equi is a tick borne protozoan parasite which causes piroplasmosis among equines worldwide. The present study was aimed to determine seroprevalence of T. equi in donkeys, horses, and mules from two equine populated districts (Peshawar and Charsadda) of Khyber Pakhtunkhwa (KPK), Pakistan. Methods: A total of 393 equine (195 horses, 194 donkeys and 4 mules) serum samples were collected from five and four randomly selected localities in Charsadda (n = 193) and Peshawar (n = 200), respectively...
October 2017: Iranian Journal of Parasitology
https://www.readbyqxmd.com/read/29317872/transmission-of-leishmania-infantum-by-rhipicephalus-sanguineus-acari-ixodidae-in-dogs
#18
Alaleh Rakhshanpour, Abdolali Malmasi, Mehdi Mohebali, Sedigheh Nabian, Hossein Mirhendi, Zabihollah Zarei, Abdolhossein Dalimi, Anita Mohammadiha, Behnaz Akhoundi, Amrollah Azarm
Background: Rhipicephalus sanguineus is the most widely distributed tick in the world, which is partly due to its biological flexibility and the global distribution of its major host, the domestic dog. In Mediterranean region it could be principal reservoir host for Leishmania infantum, usually transmitted by the phlebotomine sand flies. In this study, we evaluated the vector potential of R. sanguineus in transmitting L. infantum to uninfected dogs. Methods: During 2014, five dogs with clinical manifestations of canine visceral leishmaniasis (CVL), high anti-Leishmania antibody titers and tick infestation, were selected from CVL endemic areas (Tehran and Alborz provinces)...
October 2017: Iranian Journal of Parasitology
https://www.readbyqxmd.com/read/29314141/local-immune-response-to-larvae-of%C3%A2-rhipicephalus-microplus%C3%A2-in-santa-gertrudis-cattle-immune-response-against-rhipicephalus-microplus
#19
Constantin Constantinoiu, Ala Lew-Tabor, Louise Jackson, Wayne Jorgensen, Emily Piper, David Mayer, Linda Johnson, Bronwyn Venus, Nicholas Jonsson
AIMS: This study investigated the local immune response at larval attachment sites in Santa Gertrudis cattle with low and high levels of tick resistance. METHODS AND RESULTS: Skin samples with tick larvae attached were collected from Santa Gertrudis cattle at the end of a period of 25 weekly infestations, when the animals manifested highly divergent tick-resistant phenotypes. There was a tendency for more CD3+ , CD4+ , CD8+ , CD25+ , γδ T-cells and neutrophils to concentrate at larval tick attachment site in susceptible cattle than in resistant cattle but the differences were significant only for γδ T-cells and CD4+ cells...
January 4, 2018: Parasite Immunology
https://www.readbyqxmd.com/read/29313244/meningoencephaloradiculitis-following-infection-with-tick-borne-encephalitis-virus-case-report-and-review-of-the-literature
#20
Stephanie Du Four, Rembert Mertens, Wietse Wiels, Jacques De Keyser, Veronique Bissay, Anja Flamez
Tick borne encephalitis (TBE) is an infectious zoonotic disease caused by an RNA virus that is endemic to Central and Eastern Europe, Russia, and large parts of Asia. The tick borne encephalitis virus (TBEV) is transmitted through the saliva of infected ticks and infected goat milk. In the vast majority of cases, an infection with TBEV has a subclinical course. However, in some cases, it leads to neurological symptoms due to meningitis, meningoencephalitis, meningoencephalomyelitis, or meningoencephaloradiculitis...
January 8, 2018: Acta Neurologica Belgica
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