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https://www.readbyqxmd.com/read/28443086/complete-molecular-and-immunoprotective-characterization-of-babesia-microti-enolase
#1
Xiangye Liu, Chen Zheng, Xiaoge Gao, Jiaxu Chen, Kuiyang Zheng
The apicomplexan Babesia microti is the primary causative agent of human babesiosis, one of the most broadly distributed tick-borne diseases worldwide. B. microti undergoes a complex lifecycle within both the mammalian host and the tick vector, and employs several different specific molecular mechanisms to enter host cells. Enolase, the key glycolytic enzyme in intracellular glucose metabolism, can also be expressed on the parasite's outer surface, binds to human plasminogen, and coordinates apicomplexan parasite invasion of host cells, however, it lacks sorting sequences or lipoprotein anchor sites...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28442241/molecular-detection-and-phylogenetic-analysis-of-severe-fever-with-thrombocytopenia-syndrome-virus-in-shelter-dogs-and-cats-in-the-republic-of-korea
#2
Seung-Hun Lee, Hyun-Joo Kim, Jae-Won Byun, Min-Jung Lee, Neung-Hee Kim, Doo-Hwan Kim, Hae-Eun Kang, Hyang-Mi Nam
Severe fever with thrombocytopenia syndrome is a tick-borne infectious disease. The present study investigated the prevalence of severe fever with thrombocytopenia syndrome virus (SFTSV) in shelter dogs and cats in the Republic of Korea (ROK). Blood samples were collected from 426 dogs and 215 cats in animal shelters throughout the ROK in 2016. Of the tested samples, one (0.2%) dog and one (0.5%) cat were positive for SFTSV. Phylogenetic analysis of the sequences obtained in the present study showed that the viruses belonged to the J3 clade, which is considered the dominant clade in the ROK...
April 14, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28440879/tick-borne-encephalitis-in-patients-vaccinated-against-this-disease
#3
S Lotrič-Furlan, P Bogovič, T Avšič-Županc, M Jelovšek, L Lusa, F Strle
BACKGROUND: Information on tick-borne encephalitis (TBE) in patients already vaccinated against the disease is limited. OBJECTIVES: To compare the course and outcome in patients with vaccination breakthrough TBE with findings in patients who developed TBE without previous vaccination. METHODS: All adult patients diagnosed with TBE at a single medical centre during a 16-year period and who had received at least two doses of TBE vaccine before the onset of illness qualified for the study...
April 25, 2017: Journal of Internal Medicine
https://www.readbyqxmd.com/read/28439499/tick-pathogen-interactions-and-vector-competence-identification-of-molecular-drivers-for-tick-borne-diseases
#4
REVIEW
José de la Fuente, Sandra Antunes, Sarah Bonnet, Alejandro Cabezas-Cruz, Ana G Domingos, Agustín Estrada-Peña, Nicholas Johnson, Katherine M Kocan, Karen L Mansfield, Ard M Nijhof, Anna Papa, Nataliia Rudenko, Margarita Villar, Pilar Alberdi, Alessandra Torina, Nieves Ayllón, Marie Vancova, Maryna Golovchenko, Libor Grubhoffer, Santo Caracappa, Anthony R Fooks, Christian Gortazar, Ryan O M Rego
Ticks and the pathogens they transmit constitute a growing burden for human and animal health worldwide. Vector competence is a component of vectorial capacity and depends on genetic determinants affecting the ability of a vector to transmit a pathogen. These determinants affect traits such as tick-host-pathogen and susceptibility to pathogen infection. Therefore, the elucidation of the mechanisms involved in tick-pathogen interactions that affect vector competence is essential for the identification of molecular drivers for tick-borne diseases...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28438912/effects-of-conservation-management-of-landscapes-and-vertebrate-communities-on-lyme-borreliosis-risk-in-the-united-kingdom
#5
REVIEW
Caroline Millins, Lucy Gilbert, Jolyon Medlock, Kayleigh Hansford, Des Ba Thompson, Roman Biek
Landscape change and altered host abundance are major drivers of zoonotic pathogen emergence. Conservation and biodiversity management of landscapes and vertebrate communities can have secondary effects on vector-borne pathogen transmission that are important to assess. Here we review the potential implications of these activities on the risk of Lyme borreliosis in the United Kingdom. Conservation management activities include woodland expansion, management and restoration, deer management, urban greening and the release and culling of non-native species...
June 5, 2017: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28438910/lyme-disease-ecology-in-a-changing-world-consensus-uncertainty-and-critical-gaps-for-improving-control
#6
REVIEW
A Marm Kilpatrick, Andrew D M Dobson, Taal Levi, Daniel J Salkeld, Andrea Swei, Howard S Ginsberg, Anne Kjemtrup, Kerry A Padgett, Per M Jensen, Durland Fish, Nick H Ogden, Maria A Diuk-Wasser
Lyme disease is the most common tick-borne disease in temperate regions of North America, Europe and Asia, and the number of reported cases has increased in many regions as landscapes have been altered. Although there has been extensive work on the ecology and epidemiology of this disease in both Europe and North America, substantial uncertainty exists about fundamental aspects that determine spatial and temporal variation in both disease risk and human incidence, which hamper effective and efficient prevention and control...
June 5, 2017: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28438088/anaplasma-ehrlichia-and-rickettsia-species-infections-in-cats
#7
Maria Grazia Pennisi, Regina Hofmann-Lehmann, Alan D Radford, Séverine Tasker, Sándor Belák, Diane D Addie, Corine Boucraut-Baralon, Herman Egberink, Tadeusz Frymus, Tim Gruffydd-Jones, Katrin Hartmann, Marian C Horzinek, Margaret J Hosie, Albert Lloret, Hans Lutz, Fulvio Marsilio, Etienne Thiry, Uwe Truyen, Karin Möstl
Anaplasma species, Ehrlichia species and Rickettsia species are vector-borne pathogens infecting a wide variety of mammals, but causing disease in very few of them. Infection in cats: Anaplasma phagocytophilum is the most important feline pathogen among these rickettsial organisms, and coinfections are possible. Little information is available on the pathogenesis of these agents in cats. Clinical signs are usually reported soon after tick infestation. They are mostly non-specific, consisting of fever, anorexia and lethargy...
May 2017: Journal of Feline Medicine and Surgery
https://www.readbyqxmd.com/read/28435891/detection-of-anaplasma-phagocytophilum-babesia-microti-borrelia-burgdorferi-borrelia-miyamotoi-and-powassan-virus-in-ticks-by-a-multiplex-real-time-reverse-transcription-pcr-assay
#8
Rafal Tokarz, Teresa Tagliafierro, D Moses Cucura, Ilia Rochlin, Stephen Sameroff, W Ian Lipkin
Ixodes scapularis ticks are implicated in transmission of Anaplasma phagocytophilum, Borrelia burgdorferi, Borrelia miyamotoi, Babesia microti, and Powassan virus. We describe the establishment and implementation of the first multiplex real-time PCR assay with the capability to simultaneously detect and differentiate all five pathogens in a single reaction. The application of this assay for analysis of ticks at sites in New York and Connecticut revealed a high prevalence of B. microti in ticks from Suffolk County, NY...
March 2017: MSphere
https://www.readbyqxmd.com/read/28432738/tick-bite-and-lyme-disease-related-emergency-department-encounters-in-new-hampshire-2010-2014
#9
E R Daly, C Fredette, A A Mathewson, K Dufault, D J Swenson, B P Chan
Lyme disease (LD) is a common tick-borne disease in New Hampshire (NH). While LD is a reportable condition and cases are counted for public health surveillance, many more people receive care for tick bites or diagnoses of LD than are reflected in surveillance data. NH's emergency department (ED) data system was queried for tick bite and LD-related encounters. Chief complaint text was queried for words related to LD or tick bites. International Classification of Diseases 9th Revision (ICD-9) codes were queried for the LD diagnosis code (088...
April 22, 2017: Zoonoses and Public Health
https://www.readbyqxmd.com/read/28427963/molecular-investigation-of-piroplasma-infection-in-white-yaks-bos-grunniens-in-gansu-province-china
#10
Sitong Li, Junlong Liu, Aihong Liu, Youquan Li, Shuqing Wang, Shufang Wang, Hong Yin, Jianxun Luo, Guiquan Guan
Piroplasmosis, including theileriosis and babesiosis, is a tick-borne haemoprotozoan disease responsible for huge economic losses to livestock industry. In China, the biology of piroplasms infective to cattle was well understood on the basis of pathogen isolations and molecular epidemiological surveys in the past few decades. But very limited information about the infection status of piroplasms in white yak (Bos grunniens), a semi-wild and endemic breed, has been recorded, so far. A total of 350 blood samples was collected from white yaks in 11 towns of Tianzhu Tibetan Autonomous County of Gansu province, China, during April to July 2015...
April 17, 2017: Acta Tropica
https://www.readbyqxmd.com/read/28425901/a-systematic-review-and-meta-analysis-for-the-adverse-effects-immunogenicity-and-efficacy-of-lyme-disease-vaccines-guiding-novel-vaccine-development
#11
Alaa Badawi, Maria Shering, Shusmita Rahman, L Robbin Lindsay
BACKGROUND: Lyme borreliosis (LB) is the most prevalent arthropod-borne infectious disease in North America. Currently, no vaccine is available to prevent LB in humans, although monovalent and multivalent vaccines have been developed in the past. OBJECTIVE: The aim of the current study is to conduct a systematic review and meta-analysis to evaluate and compare the findings from these two classes of vaccines for their reactogenicity, immunogenicity and efficacy, in the hope this may assist in the development of future vaccines...
April 20, 2017: Canadian Journal of Public Health. Revue Canadienne de Santé Publique
https://www.readbyqxmd.com/read/28424664/spotted-fever-epidemiology-and-vector-rickettsia-host-relationship-in-rio-de-janeiro-state
#12
Diego C Montenegro, Karla Bitencourth, Stefan V de Oliveira, Ana P Borsoi, Karen M Cardoso, Maria S B Sousa, Cristina Giordano-Dias, Marinete Amorim, Nicolau M Serra-Freire, Gilberto S Gazêta, Reginaldo P Brazil
The eco-epidemiological scenario of spotted fever (SF), a tick-borne disease that affects humans and other animals in several countries around the world, was analyzed in Rio de Janeiro (RJ) State, Brazil. During the last 34 years, 990 SF cases were reported in RJ (the Brazilian state with the highest population density), including 116 cases confirmed by serology (RIFI) or PCR, among 42.39% of the municipalities with reported cases of SF. The epidemiologic dynamics of SF in RJ State are very heterogeneous in time and space, with outbreaks, high mortality rates and periods of epidemiological silence (no SF cases reported)...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28423486/tick-host-conflict-immunoglobulin-e-antibodies-to-tick-proteins-in-patients-with-anaphylaxis-to-tick-bite
#13
Lourdes Mateos-Hernández, Margarita Villar, Angel Moral, Carmen García Rodríguez, Teresa Alfaya Arias, Verónica de la Osa, Francisco Feo Brito, Isabel G Fernández de Mera, Pilar Alberdi, Francisco Ruiz-Fons, Alejandro Cabezas-Cruz, Agustín Estrada-Peña, José de la Fuente
Tick-borne infectious diseases and allergies are a growing problem worldwide. Tick bite allergy has been associated with the direct effect of immunoglobulin E (IgE) response to tick salivary antigens, or secondary to the induction of allergy to red meat consumption through IgE antibodies against the carbohydrate α-Gal (Gal α 1-3Gal β 1-(3)4GlcNAc-R). However, despite the growing burden of this pathology, the proteins associated with anaphylaxis to tick bite have not been characterized. To address this question, a comparative proteomics approach was used to characterize tick proteins producing an IgE antibody response in a healthy individual with record of tick bites, which had not resulted in any allergic reactions, and two patients with anaphylactic reactions to Rhipicephalus bursa or Hyalomma marginatum tick bites...
March 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28421048/functional-information-stored-in-the-conserved-structural-rna-domains-of-flavivirus-genomes
#14
REVIEW
Alba Fernández-Sanlés, Pablo Ríos-Marco, Cristina Romero-López, Alfredo Berzal-Herranz
The genus Flavivirus comprises a large number of small, positive-sense single-stranded, RNA viruses able to replicate in the cytoplasm of certain arthropod and/or vertebrate host cells. The genus, which has some 70 member species, includes a number of emerging and re-emerging pathogens responsible for outbreaks of human disease around the world, such as the West Nile, dengue, Zika, yellow fever, Japanese encephalitis, St. Louis encephalitis, and tick-borne encephalitis viruses. Like other RNA viruses, flaviviruses have a compact RNA genome that efficiently stores all the information required for the completion of the infectious cycle...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28421031/fatal-outcome-of-european-tick-borne-encephalitis-after-vaccine-failure
#15
Parham Sendi, Cédric Hirzel, Stefan Pfister, Rahel Ackermann-Gäumann, Denis Grandgirard, Ekkehard Hewer, Arto C Nirkko
Tick-borne encephalitis is a viral disease affecting the central nervous system. It is endemic in Switzerland with 200-250 notified cases annually. Active immunization is effective for persons in all age groups. Vaccine failure is rare, in particular after a completed vaccination course. Here, we describe the case of 67-year-old man with a fatal outcome despite vaccination. The diagnosis was confirmed by extensive postmortem analyses. The diagnostic challenges of vaccine failure in tick-borne encephalitis and the dynamics of the immune response in vaccination breakthrough are discussed...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28420420/distribution-of-ticks-infesting-ruminants-and-risk-factors-associated-with-high-tick-prevalence-in-livestock-farms-in-the-semi-arid-and-arid-agro-ecological-zones-of-pakistan
#16
Abdul Rehman, Ard M Nijhof, Carola Sauter-Louis, Birgit Schauer, Christoph Staubach, Franz J Conraths
BACKGROUND: Tick infestation is the major problem for animal health that causes substantial economic losses, particularly in tropical and subtropical countries. To better understand the spatial distribution of tick species and risk factors associated with tick prevalence in livestock in Pakistan, ticks were counted and collected from 471 animals, including 179 cattle, 194 buffaloes, 80 goats and 18 sheep, on 108 livestock farms in nine districts, covering both semi-arid and arid agro-ecological zones...
April 19, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28417248/ticks-and-tick-borne-pathogens-of-dogs-along-an-elevational-and-land-use-gradient-in-chiriqu%C3%A3-province-panam%C3%A3
#17
A Michelle Ferrell, R Jory Brinkerhoff, Juan Bernal, Sergio E Bermúdez
Systematic acarological surveys are useful tools in assessing risk to tick-borne infections, especially in areas where consistent clinical surveillance for tick-borne disease is lacking. Our goal was to identify environmental predictors of tick burdens on dogs and tick-borne infectious agents in dog-derived ticks in the Chiriquí Province of western Panama to draw inferences about spatio-temporal variation in human risk to tick-borne diseases. We used a model-selection approach to test the relative importance of elevation, human population size, vegetative cover, and change in landuse on patterns of tick parasitism on dogs...
April 17, 2017: Experimental & Applied Acarology
https://www.readbyqxmd.com/read/28416183/inhibition-of-the-in-vitro-growth-of-babesia-bigemina-babesia-caballi-and-theileria-equi-parasites-by-trifluralin-analogues
#18
Marta G Silva, Donald P Knowles, Sandra Antunes, Ana Domingos, Maria A Esteves, Carlos E Suarez
Bovine and equine babesiosis caused by Babesia bovis, Babesia bigemina and Babesia caballi, along with equine theileriosis caused by Theileria equi are global tick-borne hemoprotozoan diseases characterized by fever, anemia, weight losses and abortions. A common feature of these diseases are transition from acute to chronic phases, in which parasites may persist in the hosts for life. Antiprotozoal drugs are important for managing infection and disease. Previous research demonstrated that trifluralin analogues, designated (TFLAs) 1-15, which specifically bind to regions of alpha-tubulin protein in plants and protozoan parasites, have the ability to inhibit the in vitro growth of B...
April 10, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28412927/widespread-subcutaneous-necrosis-in-spotted-fever-group-rickettsioses-from-the-coastal-belt-of-sri-lanka-a-case-report
#19
Nathasha Luke, Hasini Munasinghe, Lakshmi Balasooriya, Ranjan Premaratna
BACKGROUND: Spotted fever group rickettsioses (SFGR) transmitted mostly by ticks are increasingly discovered around the World and some of them are either re-emerging or emerging in Sri Lanka. Accidental human infections caused by these vector borne zoonotic diseases generally give rise to nonspecific acute febrile illnesses which can be complicated by multi organ involvement carrying high morbidity and mortality. Nonspecific clinical features and non-availability of early diagnostic facilities are known to result in delay in the diagnosis of rickettsial infections...
April 17, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28407772/the-end-of-a-dogma-the-safety-of-doxycycline-use-in-young-children-for-malaria-treatment
#20
REVIEW
Tiphaine Gaillard, Sébastien Briolant, Marylin Madamet, Bruno Pradines
Anti-malarial drug resistance to chloroquine and sulfadoxine-pyrimethamine has spread from Southeast Asia to Africa. Furthermore, the recent emergence of resistance to artemisinin-based combination therapy (ACT) in Southeast Asia highlights the need to identify new anti-malarial drugs. Doxycycline is recommended for malaria chemoprophylaxis for travel in endemic areas, or in combination with the use of quinine for malaria treatment when ACT is unavailable or when the treatment of severe malaria with artesunate fails...
April 13, 2017: Malaria Journal
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