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tick-borne diseases

Rafal Tokarz, Stephen Sameroff, Teresa Tagliafierro, Komal Jain, Simon H Williams, D Moses Cucura, Ilia Rochlin, Javier Monzon, Giovanna Carpi, Danielle Tufts, Maria Diuk-Wasser, Jory Brinkerhoff, W Ian Lipkin
Ticks carry a wide range of known human and animal pathogens and are postulated to carry others with the potential to cause disease. Here we report a discovery effort wherein unbiased high-throughput sequencing was used to characterize the virome of 2,021 ticks, including Ixodes scapularis ( n = 1,138), Amblyomma americanum ( n = 720), and Dermacentor variabilis ( n = 163), collected in New York, Connecticut, and Virginia in 2015 and 2016. We identified 33 viruses, including 24 putative novel viral species...
March 2018: MSphere
Gouri Chaubal, Prasad Sarkale, Pravin Kore, Pragya Yadav
Background: Kyasanur Forest Disease (KFD), a tick borne flavivirus, which was earlier endemic to Karnataka state, India, has been confirmed and detected from neighboring states of Tamil Nadu, Maharashtra, Goa and Kerala states in India. Increased human and vector surveillance therefore becomes essential for the identification of KFD affected regions and control of further spread of the disease. Currently, available KFD detection assays include realtime RT-PCR and nested RT-PCR assays...
February 2018: Heliyon
Kurtesh Sherifi, Agim Rexhepi, Kristaq Berxholi, Blerta Mehmedi, Rreze M Gecaj, Zamira Hoxha, Anja Joachim, Georg G Duscher
Tick-borne diseases pose a serious threat to human health in South-Eastern Europe, including Kosovo. While Crimean-Congo hemorrhagic fever (CCHF) is a well-known emerging infection in this area, there are no accurate data on Lyme borreliosis and tick-borne encephalitis (TBE). Therefore, we sampled and tested 795 ticks. Ixodes ricinus ( n  = 218), Dermacentor marginatus ( n  = 98), and Haemaphysalis spp. ( n  = 24) were collected from the environment by flagging (all from Kosovo), while Hyalomma marginatum ( n  = 199 from Kosovo, all from Kosovo) and Rhipicephalus bursa ( n  = 130, 126 from Albania) could be collected only by removal from animal pasture and domestic ruminants...
2018: Frontiers in Veterinary Science
Anna Moniuszko-Malinowska, Paweł Penza, Piotr Czupryna, Olga Zajkowska, Sławomir Pancewicz, Renata Świerzbińska, Justyna Dunaj, Joanna Zajkowska
AIM: The aim of the study was to determine HMGB-1 concentration in serum and cerebrospinal fluid (CSF) of patients suffering from tick-borne encephalitis (TBE) and neuroborreliosis (NB). We focused on HMGB-1 measurement in CSF or sera in order to establish whether it could help to differentiate between NB and TBE. METHODS: 80 patients with meningitis and meningoencephalitis were enrolled in the study. Patients were divided into two groups: Group I - patients with NB (n=40) and Group II - patients with TBE (n=40)...
March 17, 2018: International Journal of Infectious Diseases: IJID
Ferda Sevinc, Mo Zhou, Shinuo Cao, Onur Ceylan, Mehmet Fatih Aydin, Mutlu Sevinc, Xuenan Xuan
Babesiosis, theileriosis, and anaplasmosis are the most common tick-borne diseases in sheep. The majority of anaplasmosis and theileriosis are subclinical; however, babesiosis causes severe infections in small ruminants. Although there are many reports of co-infections with the agents of these diseases, their clinical severity compared with either of the infections alone is unknown. Within the host, interactions between co-infecting species may cause variations in clinical presentation and response to therapy...
March 15, 2018: Veterinary Parasitology
Ioana Adriana Matei, Gianluca D'Amico, Angela Monica Ionică, Zsuzsa Kalmár, Alexandra Corduneanu, Attila D Sándor, Nicodim Fiţ, Liviu Bogdan, Călin M Gherman, Andrei Daniel Mihalca
BACKGROUND: Tick-borne diseases pose a major threat in public health. The epidemiological dynamics of these diseases depends on the tick vector species and their hosts, as well as the geographical distribution and ecology of both. Among many possible hosts for ticks, small mammals have a major role in the development of immature stages of several tick species. Small mammals are also important reservoir hosts for several pathogenic agents and possible reservoirs for Anaplasma phagocytophilum...
March 20, 2018: Parasites & Vectors
Telleasha L Greay, Alireza Zahedi, Anna-Sheree Krige, Jadyn M Owens, Robert L Rees, Una M Ryan, Charlotte L Oskam, Peter J Irwin
BACKGROUND: Apicomplexan tick-borne pathogens that cause disease in companion animals include species of Babesia Starcovici, 1893, Cytauxzoon Neitz & Thomas, 1948, Hepatozoon Miller, 1908 and Theileria Bettencourt, Franca & Borges, 1907. The only apicomplexan tick-borne disease of companion animals that is known to occur in Australia is babesiosis, caused by Babesia canis vogeli Reichenow, 1937 and Babesia gibsoni Patton, 1910. However, no molecular investigations have widely investigated members of Apicomplexa Levine, 1980 in Australian ticks that parasitise dogs, cats or horses, until this present investigation...
March 20, 2018: Parasites & Vectors
Tarini Ullal, Adam Birkenheuer, Shelly Vaden
Babesiosis is a hemoprotozoal tick-borne disease that is commonly associated with thrombocytopenia and anemia; however, renal involvement has been documented in dogs. The purpose of this retrospective study was to document azotemia and proteinuria in dogs infected with Babesia sp. and to describe the response to antiprotozoal therapy. The electronic database of the North Carolina State University Vector Borne Disease Laboratory was searched to identify dogs who were diagnosed with babesiosis and to determine if they had proteinuria and/or azotemia...
March 20, 2018: Journal of the American Animal Hospital Association
Filipe Dantas-Torres, Yury Yzabella da Silva, Débora Elienai de Oliveira Miranda, Kamila Gaudêncio da Silva Sales, Luciana Aguiar Figueredo, Domenico Otranto
BACKGROUND: Ehrlichia canis is a tick-borne bacterium that causes severe, life-threatening disease in dogs, being more prevalent in tropical and subtropical countries. Randomized studies conducted in Brazil indicate that the prevalence of E. canis infection in dogs ranges from 0.7% to over 50.0%. In a study conducted in northern Brazil, the prevalence was higher in dogs from urban areas, as compared to dogs from rural areas. In the present study, we investigated the exposure to Ehrlichia spp...
March 20, 2018: Parasites & Vectors
Ana Margarida Alho, Clara Lima, Vito Colella, Luís Madeira de Carvalho, Domenico Otranto, Luís Cardoso
BACKGROUND: Qatar is one of the wealthiest and fastest growing economies in the world, experiencing a rapid increase in human and pet populations. Given the paucity of data on prophylactic measures against endo- and ectoparasites of pets in Qatar, as well as on the owners' awareness of zoonotic diseases, a questionnaire was conducted. METHODS: From July to November 2017, 150 multiple-choice questionnaires were administered to dog and/or cat owners who attended two veterinary clinics in Doha...
March 20, 2018: Parasites & Vectors
Joris Koetsveld, Nadezhda M Kolyasnikova, Alex Wagemakers, Olga A Stukolova, Dieuwertje Hoornstra, Denis S Sarksyan, Marina G Toporkova, Anna J Henningsson, Dag Hvidsten, Wim Ang, Ram Dessau, Alexander E Platonov, Joppe W Hovius
OBJECTIVES: Borrelia miyamotoi disease (BMD) is an emerging tick-borne disease in the Northern hemisphere. Serodiagnosis by measuring antibodies against glycerophosphodiester-phosphodiesterase (GlpQ) is performed experimentally, but has not been extensively clinically validated. Since we have previously shown the differential expression of antigenic variable major proteins (Vmps) in B. miyamotoi, our aim was to study antibody responses against GlpQ and Vmps in PCR-proven BMD patients and controls...
March 14, 2018: Clinical Microbiology and Infection
Felicia Keesing, Richard S Ostfeld
Prevention of tick-borne diseases in humans is challenging. To date, no prevention strategies have been shown to be consistently effective. Here, we describe the design of a new large-scale study, involving hundreds of households in Dutchess County, New York, testing whether environmental interventions, applied intensively and over 4 years, can prevent human cases.
March 13, 2018: Trends in Parasitology
Memi Muto, Wataru Kamitani, Mizuki Sakai, Minato Hirano, Shintaro Kobayashi, Hiroaki Kariwa, Kentaro Yoshii
Tick-borne encephalitis virus (TBEV) causes severe neurological disease, but the pathogenetic mechanism is unclear. The conformational structure of the 3'-untranslated region (UTR) of TBEV is associated with its virulence. We tried to identify host proteins interacting with the 3'-UTR of TBEV. Cellular proteins of HEK293T cells were co-precipitated with biotinylated RNAs of the 3'-UTR of low- and high-virulence TBEV strains and subjected to mass spectrometry analysis. Fifteen host proteins were found to bind to the 3'-UTR of TBEV, four of which- cold shock domain containing-E1 (CSDE1), spermatid perinuclear RNA binding protein (STRBP), fragile X mental retardation protein (FMRP), and interleukin enhancer binding factor 3 (ILF3)-bound specifically to that of the low-virulence strain...
March 12, 2018: Virus Research
Junming Shi, Zhihong Hu, Fei Deng, Shu Shen
Ticks are important vectors for the transmission of pathogens including viruses. The viruses carried by ticks also known as tick-borne viruses (TBVs), contain a large group of viruses with diverse genetic properties and are concluded in two orders, nine families, and at least 12 genera. Some members of the TBVs are notorious agents causing severe diseases with high mortality rates in humans and livestock, while some others may pose risks to public health that are still unclear to us. Herein, we review the current knowledge of TBVs with emphases on the history of virus isolation and identification, tick vectors, and potential pathogenicity to humans and animals, including assigned species as well as the recently discovered and unassigned species...
March 13, 2018: Virologica Sinica
Safiou B Adehan, Hassane Adakal, Donald Gbinwoua, Daté Yokossi, Sébastien Zoungrana, Patrice Toé, Mathieu Ouedraogo, A Michel Gbaguidi, Camus Adoligbé, A Belarmin Fandohan, Gildas Hounmanou, Romain Glèlè Kakaï, Souaïbou Farougou, Eva M De Clercq
Worldwide, cattle production is struggling to face the negative impacts caused by ticks and Rhipicephalus (Boophilus) microplus is one of the most harmful ticks for livestock. Most of the people in West Africa depend on cattle farming and subsistence agriculture. The presence of ticks on cattle is a major problem faced by smallholder farmers who fight for their livelihood. National and regional tick control programs could assist these rural communities in protecting their livelihoods against ticks and tick-borne diseases, but only if they take into account the targeted herders and their perception on cattle management and tick control...
March 13, 2018: EcoHealth
Jinho Park, Du-Gyeong Han, Ji-Hyoung Ryu, Jeong-Byoung Chae, Joon-Seok Chae, Do-Hyeon Yu, Bae-Keun Park, Hyeon-Cheol Kim, Kyoung-Seong Choi
Anaplasmosis is a tick-borne infectious disease that affects both human and animal health. This study was performed to characterize and investigate the prevalence of infection with Anaplasma bovis in Holstein cattle originating from two regions in the Republic of Korea (ROK). Blood samples (n = 151; 80 from Namwon and 71 from Jeju Island) were analyzed by polymerase chain reaction, and the prevalence of A. bovis infection was compared before and after grazing. In Namwon, A. bovis infection was not detected, while in the Jeju Island, A...
March 12, 2018: Acta Veterinaria Scandinavica
Mengfei Wang, Dan Zhu, Jianfeng Dai, Zhengwei Zhong, Yi Zhang, Jingwen Wang
Ticks are important disease vectors as they transmit a variety of human and animal pathogens worldwide. Symbionts that co-evolved with ticks confer crucial benefits to their host in nutrition metabolism, fecundity and vector competence. Although over a hundred-tick species have been identified in China, general information of tick symbiosis is limited. Here, we visualized the tissue distribution of Coxiella sp. and Rickettsia sp. in lab reared Haemaphysalis longicornis and Rhipicephalus haemaphysaloides by fluorescent in situ hybridization...
March 9, 2018: Applied and Environmental Microbiology
Daniel E Sonenshine
Ticks are the major vectors of most disease-causing agents to humans, companion animals and wildlife. Moreover, ticks transmit a greater variety of pathogenic agents than any other blood-feeding arthropod. Ticks have been expanding their geographic ranges in recent decades largely due to climate change. Furthermore, tick populations in many areas of their past and even newly established localities have increased in abundance. These dynamic changes present new and increasing severe public health threats to humans, livestock and companion animals in areas where they were previously unknown or were considered to be of minor importance...
March 9, 2018: International Journal of Environmental Research and Public Health
Yanfang Zhang, Shu Shen, Yaohui Fang, Jinliang Liu, Zhengyuan Su, Jinhao Liang, Zhong Zhang, Qiaoli Wu, Cheng Wang, Abulikemu Abudurexiti, Zhihong Hu, Yujiang Zhang, Fei Deng
Crimean-Congo hemorrhagic fever (CCHF) caused by the CCHF virus (CCHFV) is a tick-borne natural focal disease with a mortality rate of approximately 50%. CCHFV is widely prevalent in Africa, southern Asia, the Middle East, and southeast Europe. CCHF outbreaks have been reported previously in Xinjiang province, China, especially in its southern region. Epidemiological surveys conducted on ticks and animals have revealed the presence of CCHFV strains in ticks, rodents, and infected individuals from cities and counties in southern Xinjiang...
March 8, 2018: Virologica Sinica
Juntra Wattanamethanont, Morakot Kaewthamasorn, Sonthaya Tiawsirisup
Ixodid ticks are important vectors of tick-borne disease agents affecting humans and animals, with wildlife often serving as important reservoirs. This study examined protozoal and bacterial infection in questing ticks in forest habitats in Chonburi Province, Thailand in 2015, using PCR and DNA sequencing techniques. A total of 12,184 ticks were morphologically identified to species and a subset of ticks were confirmed by PCR, targeting the tick mitochondrial 16S rRNA gene. Tick species collected included Haemaphysalis lagrangei (92...
March 5, 2018: Ticks and Tick-borne Diseases
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