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https://www.readbyqxmd.com/read/29232415/serological-detection-of-tick-borne-relapsing-fever-in-texan-domestic-dogs
#1
Maria D Esteve-Gasent, Chloe B Snell, Shakirat A Adetunji, Julie Piccione
Tick-Borne Relapsing Fever (TBRF) is caused by spirochetes in the genus Borrelia. Very limited information exists on the incidence of this disease in humans and domestic dogs in the United States. The main objective of this study is to evaluate exposure of dogs to Borrelia turicatae, a causative agent of TBRF, in Texas. To this end, 878 canine serum samples were submitted to Texas A&M Veterinary Medical Diagnostic Laboratory from October 2011 to September 2012 for suspected tick-borne illnesses. The recombinant Borrelial antigen glycerophosphodiester phosphodiesterase (GlpQ) was expressed, purified, and used as a diagnostic antigen in both ELISA assays and Immunoblot analysis...
2017: PloS One
https://www.readbyqxmd.com/read/29219091/potential-impact-of-climate-change-on-emerging-vector-borne-and-other-infections-in-the-uk
#2
Matthew Baylis
Climate is one of several causes of disease emergence. Although half or more of infectious diseases are affected by climate it appears to be a relatively infrequent cause of human disease emergence. Climate mostly affects diseases caused by pathogens that spend part of their lifecycle outside of the host, exposed to the environment. The most important routes of transmission of climate sensitive diseases are by arthropod (insect and tick) vectors, in water and in food. Given the sensitivity of many diseases to climate, it is very likely that at least some will respond to future climate change...
December 5, 2017: Environmental Health: a Global Access Science Source
https://www.readbyqxmd.com/read/29216890/in-silico-and-phylogenetic-analyses-of-partial-bbrap-1-bbcp2-bbsbp-4-and-bb%C3%AE-tub-gene-sequences-of-babesia-bovis-isolates-from-cattle-in-south-africa
#3
Phillip Senzo Mtshali, Moses Sibusiso Mtshali
BACKGROUND: Bovine babesiosis is one of the most economically important tick-borne diseases threatening the livestock industry globally including South Africa. This disease is induced by members of Babesia bovis species. Antigenic variations among geographical strains of B. bovis, and these heterogeneities are cited as the mechanism by which parasites evade from host immune system and they hamper the successful development of a single vaccine that could confer absolute protection. Given the economic importance of livestock industry in South Africa, the extent of genetic diversity among field isolates of B...
December 8, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/29210509/arboviruses-and-their-related-infections-in-china-a-comprehensive-field-and-laboratory-investigation-over-the-last-3-decades
#4
REVIEW
Guodong Liang, Xiaolong Li, Xiaoyan Gao, Shihong Fu, Huanyu Wang, Minghua Li, Zhi Lu, Wuyang Zhu, Xinjun Lu, Lihua Wang, Yuxi Cao, Ying He, Wenwen Lei
Since the 1980s, a comprehensive field and laboratory investigation has been conducted throughout China, and a total of 29 virus species belonging to 7 families and 13 genera were identified through virological, morphological, and immunological methods, as well as whole-genome sequencing and molecular genetic analyses. Most of the virus isolates belong to 9 genera in the families Flaviviridae, Bunyaviridae, Togaviridae, and Reoviridae. Among them, 4 genera (Orthobunyavirus, Bunyavirus, Phlebovirus, and Nairovirus) belong to the family Bunyaviridae and 3 genera (Seadonavirus, Orbivirus, and Cypovirus) belong to the family Reoviridae...
December 6, 2017: Reviews in Medical Virology
https://www.readbyqxmd.com/read/29206879/climate-change-influences-on-the-potential-geographic-distribution-of-the-disease-vector-tick-ixodes-ricinus
#5
Abdelghafar A Alkishe, A Townsend Peterson, Abdallah M Samy
BACKGROUND: Ixodes ricinus is a species of hard tick that transmits several important diseases in Europe and North Africa, including Lyme borreliosis and tick-borne encephalitis. Climate change is affecting the geographic distributions and abundances of arthropod vectors, which in turn influence the geographic distribution and epidemiology of associated vector-borne diseases. To date, few studies have investigated effects of climate change on the spatial distribution of I. ricinus at continental extents...
2017: PloS One
https://www.readbyqxmd.com/read/29205927/areolar-lymphocytoma-in-a-child-a-rare-cutaneous-presentation-of-borreliosis
#6
Chikara Ogimi, Claudia Crowell, Markus D Boos
Lyme disease is a common tick-borne infection caused by Borrelia burgdorferi in the United States, where infection is most prevalent in the northeastern and mid-Atlantic states. Although classically associated with erythema migrans, Lyme disease caused by Borrelia species found in Europe may also present with other cutaneous findings. Here we report the case of a girl who was clinically diagnosed with Lyme disease based on her history of recent travel and the appearance of an areolar lymphocytoma; this was confirmed by testing...
December 4, 2017: Pediatric Dermatology
https://www.readbyqxmd.com/read/29202672/sensitivity-and-specificity-levels-of-two-rapid-assays-for-antibodies-to-anaplasma-spp-in-dogs
#7
Jiayou Liu, Matthew Eberts, Hannah Bewsey, Thomas P O'Connor, Ramaswamy Chandrashekar, Edward B Breitschwerdt
Canine anaplasmosis is a tick-borne disease of dogs that results following infection with Anaplasma phagocytophilum or Anaplasma platys. The SNAP 4Dx Plus test (IDEXX Laboratories) and the VetScan Canine Anaplasma Rapid test (Abaxis) are commercial in-house rapid tests for the detection of antibody to these 2 antigenically related Anaplasma species. We evaluated 2 tests using serum and whole blood samples obtained from reference laboratories and veterinary hospitals. Samples were obtained from regions of the country known to be habitats of the primary tick vectors...
December 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/29197596/historical-review-and-insights-on-the-livestock-tick-borne-disease-research-of-a-developing-country-the-philippine-scenario
#8
REVIEW
Adrian P Ybañez, Claro N Mingala, Rochelle Haidee D Ybañez
Tick-borne diseases (TBDs) remain to be a global animal health threat. Developing countries like the Philippines is not exempt to this. Despite the potential impact TBDs can give to these countries, local government initiatives and researches remain to be limited. In the Philippines, most epidemiological studies were confined only to specific areas, and predominantly in the Northern Area. Due to its unique geography and limited studies, the current nationwide status of most TBDs could not be clearly established...
November 29, 2017: Parasitology International
https://www.readbyqxmd.com/read/29197549/isolation-and-characterization-of-kabuto-mountain-virus-a-new-tick-borne-phlebovirus-from-haemaphysalis-flava-ticks-in-japan
#9
Hiroko Ejiri, Chang-Kweng Lim, Haruhiko Isawa, Yukie Yamaguchi, Ryosuke Fujita, Mutsuyo Takayama-Ito, Ryusei Kuwata, Daisuke Kobayashi, Madoka Horiya, Guillermo Posadas-Herrera, Itoe Iizuka-Shiota, Satsuki Kakiuchi, Yukie Katayama, Toshihiko Hayashi, Toshinori Sasaki, Mutsuo Kobayashi, Shigeru Morikawa, Ken Maeda, Tetsuya Mizutani, Koki Kaku, Masayuki Saijo, Kyoko Sawabe
In Japan, indigenous tick-borne phleboviruses (TBPVs) and their associated diseases first became evident in 2013 by reported human cases of severe fever with thrombocytopenia syndrome (SFTS). In this study, we report a novel member of the genus Phlebovirus designated as Kabuto Mountain virus (KAMV), which was isolated from the ixodid tick Haemaphysalis flava in Hyogo, Japan. A complete viral genome sequencing and phylogenetic analyses showed that KAMV is a novel member of TBPVs, which is closely related to the Uukuniemi and Kaisodi group viruses...
November 29, 2017: Virus Research
https://www.readbyqxmd.com/read/29196626/identification-of-borrelia-protein-candidates-in-mouse-skin-for-potential-diagnosis-of-disseminated-lyme-borreliosis
#10
Antoine Grillon, Benoît Westermann, Paola Cantero, Benoît Jaulhac, Maarten J Voordouw, Delphine Kapps, Elody Collin, Cathy Barthel, Laurence Ehret-Sabatier, Nathalie Boulanger
In vector-borne diseases, the skin plays an essential role in the transmission of vector-borne pathogens between the vertebrate host and blood-feeding arthropods and in pathogen persistence. Borrelia burgdorferi sensu lato is a tick-borne bacterium that causes Lyme borreliosis (LB) in humans. This pathogen may establish a long-lasting infection in its natural vertebrate host where it can persist in the skin and some other organs. Using a mouse model, we demonstrate that Borrelia targets the skin regardless of the route of inoculation, and can persist there at low densities that are difficult to detect via qPCR, but that were infective for blood-feeding ticks...
December 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29196197/behavioral-asymmetries-in-ticks-lateralized-questing-of-ixodes-ricinus-to-a-mechatronic-apparatus-delivering-host-borne-cues
#11
Giovanni Benelli, Donato Romano, Guido Rocchigiani, Alice Caselli, Francesca Mancianti, Angelo Canale, Cesare Stefanini
Ticks are considered among the most dangerous arthropod vectors of disease agents to both humans and animals worldwide. Lateralization contributes to biological fitness in many animals, conferring important functional advantages, therefore studying its role in tick perception would critically improve our knowledge about their host-seeking behavior. In this research, we evaluated if Ixodes ricinus (L.) (Ixodiidae) ticks have a preference in using the right or the left foreleg to climb on a host. We developed a mechatronic device moving a tuft of fox skin with fur as host-mimicking combination of cues...
November 28, 2017: Acta Tropica
https://www.readbyqxmd.com/read/29195857/evaluating-acarological-risk-for-exposure-to-ixodes-scapularis-and-ixodes-scapularis-borne-pathogens-in-recreational-and-residential-settings-in-washington-county-minnesota
#12
Micah B Hahn, Jenna K H Bjork, David F Neitzel, Frances M Dorr, Tessa Whitemarsh, Karen A Boegler, Christine B Graham, Tammi L Johnson, Sarah E Maes, Rebecca J Eisen
The distribution of I. scapularis, the tick vector of the bacteria that cause Lyme disease, has been expanding over the last two decades in the north-central United States in parallel with increasing incidence of human cases of Lyme disease in that region. However, assessments of residential risk for exposure to ticks are lacking from this region. Here, we measured the density of host-seeking I. scapularis nymphs in two suburban and two rural public recreational sites located in Washington County, Minnesota as well as in nearby residential properties...
November 22, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/29192635/is-hemorrhage-the-reason-in-crimean-congo-hemorrhagic-fever-patients-with-neurological-signs-and-symptomsa
#13
Fatma Aktaş, Zafer Özmen, Ayşegül Altunkaş, Eda Albayrak, Fazilet Duygu, Osman Demir, Zeliha Cansel Özmen
PURPOSE: Crimean-Congo hemorrhagic fever (CCHF) is a tick-borne disease can result in mortality varying from 3.0% to 50.0%. In this study, we wished to discuss computed tomography (CT) findings together with clinical and laboratory findings in patients who had disease-related neurological signs. MATERIALS AND METHODS: The study included patients who were diagnosed with CCHF. Seventeen patients that had neurological signs were enrolled as the patient group. As a control group, 40 patients diagnosed with CCHF and did not have neurological signs were enrolled...
October 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/29189951/ticks-and-bacterial-tick-borne-pathogens-in-piemonte-region-northwest-italy
#14
Dario Pistone, Massimo Pajoro, Eva Novakova, Nadia Vicari, Cesare Gaiardelli, Roberto Viganò, Camilla Luzzago, Matteo Montagna, Paolo Lanfranchi
A molecular screening for tick-borne pathogens was carried out in engorged and in questing ticks collected in Verbano Cusio Ossola county, Piemonte region, Italy. Engorged ticks were removed from wild and domestic animal hosts. The most abundant and common tick species in the area was Ixodes ricinus (192 adults, 907 nymphs). Few individuals of Ixodes hexagonus (15) and Rhipicephalus sanguineus (7) were found among the ticks removed from domestic animals (46 examined ticks). The presence of Rickettsia spp., Borrelia burgdorferi sensu latu, Francisella tularensis and Coxiella burnetii was evaluated by PCR and sequencing in 392 individuals of I...
November 30, 2017: Experimental & Applied Acarology
https://www.readbyqxmd.com/read/29188467/diagnosing-tick-borne-encephalitis-a-re-evaluation-of-notified-cases
#15
Malin Veje, Marie Studahl, Maja Johansson, Patrik Johansson, Peter Nolskog, Tomas Bergström
We set out to investigate the serological response of TBE virus (TBEV)-specific IgM and IgG antibodies in stored serum and cerebrospinal fluid (CSF) in notified TBE patients, in order to confirm or reject the diagnosis. We applied the ELISA methods used in clinical practice, Enzygnost and Immunozym, and assessed RT-PCR as a diagnostic tool. A total of 173 TBE cases were notified to the Public Health Agency. Samples from 129 patients were eligible for the study. Stored serum samples were found for 111 patients and CSF samples for 88 patients...
November 29, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/29187292/borrelia-miyamotoi-should-this-pathogen-be-considered-for-the-diagnosis-of-tick-borne-infectious-diseases-in-spain
#16
Ana M Palomar, Aránzazu Portillo, Paula Santibáñez, Sonia Santibáñez, José A Oteo
INTRODUCTION: Borrelia miyamotoi is a tick-borne pathogen belonging to the relapsing fever group. It had not been reported from Spain, but its wide distribution and the presence of the tick-vector (Ixodes ricinus) made us suspect its circulation. The aim of this study was to investigate the presence of Borrelia spp. in I. ricinus in Spain. METHODS: A total of 652 I. ricinus nymphs collected in northern Spain were processed. The DNA was extracted using incubations with ammonium hydroxide...
November 26, 2017: Enfermedades Infecciosas y Microbiología Clínica
https://www.readbyqxmd.com/read/29186958/tick-borne-viruses
#17
P Bartíková, V Holíková, M Kazimírová, I Štibrániová
Tick-borne viruses (TBVs) belong to the largest biological group known as arboviruses with unique mode of transmission by blood-feeding arthropods (ticks, mosquitoes, sand flies, biting midges, etc.) to a susceptible vertebrate host. Taxonomically, it is a heterogenous group of vertebrate viruses found in several viral families. With only one exception, African swine fever virus, all TBVs have a RNA genome. To date, at least 160 tick-borne viruses are known, some of them pose a significant threat to human and animal health worldwide...
2017: Acta Virologica
https://www.readbyqxmd.com/read/29186493/a-molecular-survey-of-rickettsias-in-shelter-dogs-and-distribution-of-rhipicephalus-sanguineus-acari-ixodidae-sensu-lato-in-southeast-turkey
#18
Sezayi Ozubek, Duygu Neval Sayin Ipek, Munir Aktas
Canine tick-borne pathogens are the source of emerging diseases and have important zoonotic relevance. Dogs play a major role in the transmission of several zoonotic tick-borne pathogens, as reservoirs and/or sentinels. To simultaneously detect Anaplasma and Ehrlichia species, a reverse line blot assay was conducted on 219 blood samples collected from autochthonous asymptomatic shelter dogs. One hundred and three (47.0%, CI 40.3-53.9) dogs were positive for one or both rickettsial pathogens. Seventy-one (32...
November 23, 2017: Journal of Medical Entomology
https://www.readbyqxmd.com/read/29186026/antimicrobial-activity-of-bee-venom-and-melittin-against-borrelia-burgdorferi
#19
Kayla M Socarras, Priyanka A S Theophilus, Jason P Torres, Khusali Gupta, Eva Sapi
Lyme disease is a tick-borne, multi-systemic disease, caused by the bacterium Borrelia burgdorferi. Though antibiotics are used as a primary treatment, relapse often occurs after the discontinuation of antimicrobial agents. The reason for relapse remains unknown, however previous studies suggest the possible presence of antibiotic resistant Borrelia round bodies, persisters and attached biofilm forms. Thus, there is an urgent need to find antimicrobial agents suitable to eliminate all known forms of B. burgdorferi...
November 29, 2017: Antibiotics
https://www.readbyqxmd.com/read/29185509/genomic-insights-into-the-ancient-spread-of-lyme-disease-across-north-america
#20
Katharine S Walter, Giovanna Carpi, Adalgisa Caccone, Maria A Diuk-Wasser
Lyme disease is the most prevalent vector-borne disease in North America and continues to spread. The disease was first clinically described in the 1970s in Lyme, Connecticut, but the origins and history of spread of the Lyme disease bacteria, Borrelia burgdorferi sensu stricto (s.s.), are unknown. To explore the evolutionary history of B. burgdorferi in North America, we collected ticks from across the USA and southern Canada from 1984 to 2013 and sequenced the, to our knowledge, largest collection of 146 B...
October 2017: Nature Ecology & Evolution
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