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Tick-borne infections

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https://www.readbyqxmd.com/read/29667575/a-cluster-of-two-human-cases-of-tick-borne-encephalitis-tbe-transmitted-by-unpasteurised-goat-milk-and-cheese-in-germany-may-2016
#1
S O Brockmann, R Oehme, T Buckenmaier, M Beer, A Jeffery-Smith, M Spannenkrebs, S Haag-Milz, C Wagner-Wiening, C Schlegel, J Fritz, S Zange, M Bestehorn, A Lindau, D Hoffmann, S Tiberi, U Mackenstedt, G Dobler
In May 2016, two cases of tick-borne encephalitis (TBE) were confirmed by serology (positive IgM and IgG antibodies against TBE virus (TBEV) in serum), with a possible link to raw milk and cheese from a goat farm in a region in Baden-Württemberg, Germany not previously known as TBE-endemic. The outbreak investigation identified 32 consumers of goat dairy products (29 consumers, one farm employee, two owners) of whom none had IgM antibodies against TBEV 3-8 weeks after consumption. Of the 27 notified TBE cases in the State, none reported consumption of raw goat milk or cheese from the suspected farm...
April 2018: Euro Surveillance: Bulletin Européen sur les Maladies Transmissibles, European Communicable Disease Bulletin
https://www.readbyqxmd.com/read/29664395/fatal-tick-borne-encephalitis-virus-infections-caused-by-siberian-and-european-subtypes-finland-2015
#2
Suvi Kuivanen, Teemu Smura, Kirsi Rantanen, Leena Kämppi, Jonas Kantonen, Mia Kero, Anu Jääskeläinen, Anne J Jääskeläinen, Jussi Sane, Liisa Myllykangas, Anders Paetau, Olli Vapalahti
In most locations except for Russia, tick-borne encephalitis is mainly caused by the European virus subtype. In 2015, fatal infections caused by European and Siberian tick-borne encephalitis virus subtypes in the same Ixodes ricinus tick focus in Finland raised concern over further spread of the Siberian subtype among widespread tick species.
May 2018: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/29664327/a-parasitologic-and-molecular-survey-of-hepatozoon-canis-infection-in-stray-dogs-in-northeast-of-iran
#3
Ali Barati, Gholamreza Razmi
Canine hepatozoonosis, caused by H. canis, is a tick-borne disease in domestic and wild dogs that is transmitted by ingestion of Rhipicephalus sanguineus ticks. The aim of the study was to detect H. canis in stray dogs in Iran using blood smear examination and molecular techniques. From October 2014 to September 2015, 150 EDTA blood samples were collected from stray dogs in the northeast region of Iran. Blood smears were microscopically examined for the presence of Hepatozoon gamonts; whole blood was evaluated by PCR, with subsequent sequencing and phylogenetic analysis...
April 17, 2018: Journal of Parasitology
https://www.readbyqxmd.com/read/29660557/theileria-lestoquardi-in-sudan-is-highly-diverse-and-genetically-distinct-from-that-in-oman
#4
Hoyam Awad, Salama Al-Hamidhi, A M El Hussein, Younis Mohammed Zein Yousif, Khalid M Taha, D A Salih, William Weir, Hamza A Babiker
Malignant ovine theileriosis is a severe tick-borne protozoan disease of sheep and other small ruminants which is widespread in sub-Saharan Africa and the Middle East. The disease is of considerable economic importance in Sudan as the export of livestock provides a major contribution to the gross domestic product of this country. Molecular surveys have demonstrated a high prevalence of sub-clinical infections of Theileria lestoquardi, the causative agent, among small ruminants. No information is currently available on the extent of genetic diversity and genetic exchange among parasites in different areas of the country...
April 13, 2018: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/29659338/an-improved-pcr-protocol-for-detection-of-babesia-duncani-in-wildlife-and-vector-samples
#5
Kerry E O'Connor, Anne M Kjemtrup, Patricia Ann Conrad, Andrea Swei
Human babesiosis is a tick-borne protozoal disease of increasing clinical significance in North America. Most cases in the eastern and mid-western regions of the United States are reportedly due to Babesia microti infections. By contrast, most human infections reported in California and Washington have been attributed to a new species that was first identified in 1991 and subsequently named Babesia duncani. While the tick vector and mammalian reservoir hosts for B. microti are well characterized, the vector and reservoir hosts for B...
April 16, 2018: Journal of Parasitology
https://www.readbyqxmd.com/read/29657426/status-of-theileriosis-among-herbivores-in-iran-a-systematic-review-and-meta-analysis
#6
Masoud Soosaraei, Mousa Motavalli Haghi, Fariborz Etemadifar, Mahdi Fakhar, Saeed Hosseini Teshnizi, Hajar Ziaei Hezarjaribi, Shabnam Asfaram
Aim: Theileriosis is a protozoal disease caused by Theileria spp. mostly in warm-blooded vertebrates worldwide. It is one of the common tick-borne diseases among domestic animals in tropical and sub-tropical regions, which have a variety of unlikable effects on health economy and animal welfare. In the present study, the prevalence of theileriosis among domestic farm animals in Iran was systematically evaluated. Methods: To identify the related papers, 10 English and Persian databases, including PubMed, Science Direct, Scopus, Web of Science, Medical Subject Headings, Google Scholar, Magiran, Barakatns (formerly Iranmedex), Elm net, and Scientific Information Database, were appraised for articles published throughout 1999-2017...
March 2018: Veterinary World
https://www.readbyqxmd.com/read/29657012/antiprotozoal-treatment-of-canine-babesiosis
#7
Gad Baneth
Canine babesiosis is a tick-borne disease caused by several Babesia spp. which have different susceptebility to anti-protozoal drugs. A few drugs and drug combinations are used in the treatment of canine babesiosis often without complete parasite elimination leaving treated dogs as carriers which could relapse with clinical disease and also transmit infection further. Although the large form canine babesial species Babesia canis, Babesia vogeli and Babesia rossi are sensitive to the aromatic diamidines imidocarb dipropionate and diminazene aceturate, small form species such as Babesia gibsoni, Babesia conradae and Babesia vulpes (Theileria annae) are relatively resistant to these drugs and are treated with the combination of the hydroxynaphthoquinone atovaquone and the antibiotic azithromycin...
April 30, 2018: Veterinary Parasitology
https://www.readbyqxmd.com/read/29657007/update-on-flea-and-tick-associated-diseases-of-cats
#8
Michael R Lappin
There are multiple vector-borne diseases in cats, the most prominent being those transmitted by mosquitos, sand flies, fleas, and ticks. Many of the agents vectored by fleas or ticks have been grown or amplified from blood or have induced antibodies in the serum of normal cats or those with clinical signs like fever and will be the focus of this manuscript. As high as 80% of fleas collected from cats contain at least one organism that could induce illness in cats or people. Anaplasma phagocytophilum, Bartonella spp...
April 30, 2018: Veterinary Parasitology
https://www.readbyqxmd.com/read/29653174/molecular-detection-of-anaplasma-phagocytophilum-like-anaplasma-spp-and-pathogenic-a-phagocytophilum-in-cattle-from-south-korea
#9
Min-Goo Seo, In-Ohk Ouh, Oh-Deog Kwon, Dongmi Kwak
Anaplasma phagocytophilum is the causative agent of human granulocytic anaplasmosis and tick-borne fever in domestic ruminants. Differential diagnosis of zoonotic and pathogenic tick-borne diseases like granulocytic anaplasmosis is important for the efficient implementation of control programs. Thus, the differentiation of pathogenic A. phagocytophilum from non-pathogenic A. phagocytophilum-like (APL) Anaplasma spp. is essential. Recent molecular analyses of APL revealed its distinct phylogenetic position from A...
April 10, 2018: Molecular Phylogenetics and Evolution
https://www.readbyqxmd.com/read/29650038/a-lifelong-study-of-a-pack-rhodesian-ridgeback-dogs-reveals-subclinical-and-clinical-tick-borne-anaplasma-phagocytophilum-infections-with-possible-reinfection-or-persistence
#10
Emil Hovius, Arnout de Bruin, Leo Schouls, Joppe Hovius, Niels Dekker, Hein Sprong
BACKGROUND: Various tick-borne infections often occur without specific clinical signs and are therefore notoriously hard to diagnose separately in veterinary practice. Longitudinal studies over multiple tick seasons performing clinical, serological and molecular investigations in parallel, may elucidate the relationship between infection and disease. In this regard, six related Rhodesian Ridgeback dogs living as a pack became subject of lifetime studies due to ongoing tick infestations and recurring clinical problems...
April 12, 2018: Parasites & Vectors
https://www.readbyqxmd.com/read/29649265/bacterial-and-protozoal-pathogens-found-in-ticks-collected-from-humans-in-corum-province-of-turkey
#11
Djursun Karasartova, Ayse Semra Gureser, Tuncay Gokce, Bekir Celebi, Derya Yapar, Adem Keskin, Selim Celik, Yasemin Ece, Ali Kemal Erenler, Selma Usluca, Kosta Y Mumcuoglu, Aysegul Taylan-Ozkan
BACKGROUND: Tick-borne diseases are increasing all over the word, including Turkey. The aim of this study was to determine the bacterial and protozoan vector-borne pathogens in ticks infesting humans in the Corum province of Turkey. METHODOLOGY/PRINCIPAL FINDINGS: From March to November 2014 a total of 322 ticks were collected from patients who attended the local hospitals with tick bites. Ticks were screened by real time-PCR and PCR, and obtained amplicons were sequenced...
April 12, 2018: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29649156/using-landscape-analysis-to-test-hypotheses-about-drivers-of-tick-abundance-and-infection-prevalence-with-borrelia-burgdorferi
#12
A Michelle Ferrell, R Jory Brinkerhoff
Patterns of vector-borne disease risk are changing globally in space and time and elevated disease risk of vector-borne infection can be driven by anthropogenic modification of the environment. Incidence of Lyme disease, caused by the bacterium Borrelia burgdorferi sensu stricto, has risen in a number of locations in North America and this increase may be driven by spatially or numerically expanding populations of the primary tick vector, Ixodes scapularis . We used a model selection approach to identify habitat fragmentation and land-use/land cover variables to test the hypothesis that the amount and configuration of forest cover at spatial scales relevant to deer, the primary hosts of adult ticks, would be the predominant determinants of tick abundance...
April 12, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29649132/effect-of-climate-and-land-use-on-the-spatio-temporal-variability-of-tick-borne-bacteria-in-europe
#13
Roberto Rosà, Veronica Andreo, Valentina Tagliapietra, Ivana Baráková, Daniele Arnoldi, Heidi Christine Hauffe, Mattia Manica, Fausta Rosso, Lucia Blaňarová, Martin Bona, Marketa Derdáková, Zuzana Hamšíková, Maria Kazimírová, Jasna Kraljik, Elena Kocianová, Lenka Mahríková, Lenka Minichová, Ladislav Mošanský, Mirko Slovák, Michal Stanko, Eva Špitalská, Els Ducheyne, Markus Neteler, Zdenek Hubálek, Ivo Rudolf, Kristyna Venclikova, Cornelia Silaghi, Evelyn Overzier, Robert Farkas, Gábor Földvári, Sándor Hornok, Nóra Takács, Annapaola Rizzoli
The incidence of tick-borne diseases caused by Borrelia burgdorferi sensu lato, Anaplasma phagocytophilum and Rickettsia spp. has been rising in Europe in recent decades. Early pre-assessment of acarological hazard still represents a complex challenge. The aim of this study was to model Ixodes ricinus questing nymph density and its infection rate with B. burgdorferi s.l., A. phagocytophilum and Rickettsia spp. in five European countries (Italy, Germany, Czech Republic, Slovakia, Hungary) in various land cover types differing in use and anthropisation (agricultural, urban and natural) with climatic and environmental factors (Normalized Difference Vegetation Index (NDVI), Normalized Difference Water Index (NDWI), Land Surface Temperature (LST) and precipitation)...
April 12, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29643242/rlrs-and-tlrs-signaling-pathways-cause-aberrant-production-of-inflammatory-cytokines-chemokines-in-an-sftsv-infection-mouse-model
#14
Shintaro Yamada, Masayuki Shimojima, Ryo Narita, Yuta Tsukamoto, Hiroki Kato, Masayuki Saijo, Takashi Fujita
Severe fever with thrombocytopenia syndrome (SFTS) is an emerging infectious disease caused by a tick-borne phlebovirus of the family Bunyaviridae , the SFTS virus (SFTSV). Wild type and type I interferon (IFN-I) receptor 1-deficient (IFNAR1-/- ) mice have been established as non-lethal and lethal models of SFTSV infection, respectively. However, the mechanisms of IFN-I production in vivo and the factors causing the lethal disease are not well understood. Using bone marrow chimeric mice, we found that IFN-I signaling in hematopoietic cells was essential for survival from lethal SFTSV infection...
April 11, 2018: Journal of Virology
https://www.readbyqxmd.com/read/29642942/molecular-identification-of-badger-associated-babesia-sp-dna-in-dogs-updated-phylogeny-of-piroplasms-infecting-caniformia
#15
Sándor Hornok, Gábor Horváth, Nóra Takács, Jenő Kontschán, Krisztina Szőke, Róbert Farkas
BACKGROUND: Piroplasms are unicellular, tick-borne parasites. Among them, during the past decade, an increasing diversity of Babesia spp. has been reported from wild carnivores. On the other hand, despite the known contact of domestic and wild carnivores (e.g. during hunting), and a number of ixodid tick species they share, data on the infection of dogs with babesiae from other families of carnivores are rare. METHODS: In this study blood samples were collected from 90 dogs and five road-killed badgers...
April 11, 2018: Parasites & Vectors
https://www.readbyqxmd.com/read/29642580/arbidol-umifenovir-a-broad-spectrum-antiviral-drug-that-inhibits-medically-important-arthropod-borne-flaviviruses
#16
Jan Haviernik, Michal Štefánik, Martina Fojtíková, Sabrina Kali, Noël Tordo, Ivo Rudolf, Zdeněk Hubálek, Luděk Eyer, Daniel Ruzek
Arthropod-borne flaviviruses are human pathogens of global medical importance, against which no effective small molecule-based antiviral therapy has currently been reported. Arbidol (umifenovir) is a broad-spectrum antiviral compound approved in Russia and China for prophylaxis and treatment of influenza. This compound shows activities against numerous DNA and RNA viruses. The mode of action is based predominantly on impairment of critical steps in virus-cell interactions. Here we demonstrate that arbidol possesses micromolar-level anti-viral effects (EC50 values ranging from 10...
April 10, 2018: Viruses
https://www.readbyqxmd.com/read/29628386/caffeic-acid-a-coffee-related-organic-acid-inhibits-infection-by-severe-fever-with-thrombocytopenia-syndrome-virus-in-vitro
#17
Motohiko Ogawa, Yoshitaka Shirasago, Shuji Ando, Masayuki Shimojima, Masayuki Saijo, Masayoshi Fukasawa
Severe fever with thrombocytopenia syndrome (SFTS) virus (SFTSV) causes tick-borne hemorrhagic fever in East Asia. The disease is characterized by high morbidity and mortality. Here, we evaluated the effects of caffeic acid (CA), a coffee-related organic acid with antiviral effects, against SFTSV infection. CA dose-dependently inhibited SFTSV infection in permissive human hepatoma Huh7.5.1-8 cells when SFTSV was added into the culture medium with CA. However, quinic acid (QA), another coffee-related organic acid, did not inhibit SFTSV infection...
April 5, 2018: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/29626656/equine-granulocytic-anaplasmosis-28-years-later
#18
REVIEW
Sehrish Saleem, Muhammad Ijaz, Shahid Hussain Farooqi, Awais Ghaffar, Ahmad Ali, Kashif Iqbal, Khalid Mehmood, Hui Zhang
Equine granulocytic anaplasmosis (EGA) is an important tick borne disease of equines that is caused by Anaplasma phagocytophilum (A. phagocytophilum). The etiological agent has veterinary as well as public health importance because of its zoonotic nature. A. phagocytophilum causes an acute illness in equines with loss of appetite, lethargy, hemorrhages and lameness. Clinically, EGA is diagnosed upon examination of morulae within neutrophils especially granulocytes in the blood. The best diagnostic tool for the detection of EGA is Polymerase chain reaction (PCR)...
April 4, 2018: Microbial Pathogenesis
https://www.readbyqxmd.com/read/29625920/simultaneous-detection-of-theileria-annulata-and-theileria-orientalis-infections-using-recombinase-polymerase-amplification
#19
Muhammad Adeel Hassan, Junlong Liu, Muhammad Sohail Sajid, Muhammad Rashid, Altaf Mahmood, Qamar Abbas, Guiquan Guan, Hong Yin, Jianxun Luo
Theileriosis is a disease of domesticated animals in tropical and subtropical countries and causes significant reductions in livestock productivity. The arid region of Punjab in Pakistan is notorious for the presence of the vector tick (Acari: Ixodidae) and tick-borne diseases, such as theileriosis and babesiosis. The distribution of Theileria annulata and T. orientalis in the Chakwal district of Punjab was determined by developing a multiplex recombinase polymerase amplification (RPA) assay as a scientific basis for formulating control strategies for bovine theileriosis...
March 28, 2018: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/29623261/increased-relative-risk-of-tick-borne-encephalitis-in-warmer-weather
#20
Milan Daniel, Vlasta Danielová, Alena Fialová, Marek Malý, Bohumír Kříž, Patricia A Nuttall
Tick-borne encephalitis (TBE) is a serious acute neuroinfection of humans caused by a tick-borne flavivirus. The disease is typically seasonal, linked to the host-seeking activity of Ixodes ricinus (predominantly nymphs), the principal European tick vector species. To address the need for accurate risk predictions of contracting TBE, data on 4,044 TBE cases reported in the Czech Republic during 2001-2006 were compared with questing activity of I. ricinus nymphs monitored weekly at a defined location for the same 6-year period...
2018: Frontiers in Cellular and Infection Microbiology
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