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https://www.readbyqxmd.com/read/27911694/seroprevalence-of-babesia-microti-in-individuals-with-lyme-disease
#1
Sabino R Curcio, Laurel P Tria, Azad L Gucwa
INTRODUCTION: Babesiosis is an emerging tick-borne disease (TBD) caused by Babesia microti, an intracellular parasite of red blood cells. Currently, it is the highest ranked pathogen transmitted by blood transfusion. Most healthy individuals infected with B. microti are asymptomatic, but may be at risk for chronic infection. Similar to Lyme disease transmitted by Borrelia burgdorferi, B. microti is spread by Ixodes scapularis ticks. The rate of coinfection with these TBDs in humans is unclear as most studies have focused their prevalence in ticks or rodent reservoirs...
December 2016: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/27908772/anaplasma-platys-in-dogs-from-uruguay
#2
Luis Carvalho, Maria Teresa Armua-Fernandez, Nicolás Sosa, María Laura Félix, José Manuel Venzal
Anaplasmataceae family members include vector-borne bacteria of veterinary importance that may also affect humans. Ehrlichia canis and Anaplasma platys are the main members of this family detected in dogs worldwide. In Uruguay there are not many published studies on tick-borne pathogens affecting dogs, the only haemoparasite molecularly confirmed in dogs, is the piroplasm Rangelia vitalii. The aim of the present work was to detect the presence of A. platys and E. canis in dogs and dogs-associated ticks of two localities in Northwestern Uruguay...
November 17, 2016: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/27908771/molecular-detection-and-genetic-characterization-of-babesia-theileria-and-anaplasma-amongst-apparently-healthy-sheep-and-goats-in-the-central-region-of-turkey
#3
Mo Zhou, Shinuo Cao, Ferda Sevinc, Mutlu Sevinc, Onur Ceylan, Sepil Ekici, Charoonluk Jirapattharasate, Paul Franck Adjou Moumouni, Mingming Liu, Guanbo Wang, Aiko Iguchi, Patrick Vudriko, Hiroshi Suzuki, Xuenan Xuan
Babesia spp., Theileria spp. and Anaplasma spp. are significant tick-borne pathogens of livestock globally. In this study, we investigated the presence and distribution of Babesia ovis, Theileria ovis and Anaplasma ovis in 343 small ruminants (249 sheep and 94 goats) from 13 towns in the Central Anatolia region of Turkey using species-specific PCR assays. The PCR were conducted using the primers based on the B. ovis ssu rRNA (BoSSUrRNA), T. ovis ssu rRNA (ToSSUrRNA) and A. ovis major surface protein 4 (AoMSP4) genes, respectively...
November 16, 2016: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/27903055/local-landscape-effects-on-population-dynamics-of-ixodes-ricinus
#4
Naveed Asghar, Mona Petersson, Magnus Johansson, Patrik Dinnetz
Ixodes ricinus, a common tick in Europe, transmits severe tickborne pathogens (TBPs). In Sweden, both prevalence and incidence of tick-borne infections have increased during the last few decades, and a majority of the cases is reported from the area around Stockholm. Among ticks, transmission of TBPs involves co-feeding of susceptible larvae or nymphs with infected ticks on the same host. Seasonal synchrony of immature stages and total tick abundance are important factors for the probability of horizontal transmission of TBPs...
November 21, 2016: Geospatial Health
https://www.readbyqxmd.com/read/27898670/gray-wolf-exposure-to-emerging-vector-borne-diseases-in-wisconsin-with-comparison-to-domestic-dogs-and-humans
#5
Rocio F Jara, Adrian P Wydeven, Michael D Samuel
World-wide concern over emerging vector-borne diseases has increased in recent years for both animal and human health. In the United Sates, concern about vector-borne diseases in canines has focused on Lyme disease, anaplasmosis, ehrlichiosis, and heartworm which infect domestic and wild canids. Of these diseases, Lyme and anaplasmosis are also frequently diagnosed in humans. Gray wolves (Canis lupus) recolonized Wisconsin in the 1970s, and we evaluated their temporal and geographic patterns of exposure to these four vector-borne diseases in Wisconsin as the population expanded between 1985 and 2011...
2016: PloS One
https://www.readbyqxmd.com/read/27890889/first-molecular-detection-of-tick-borne-pathogens-in-dogs-from-jiangxi-china
#6
Weiqing Zheng, Mingming Liu, Paul Franck Adjou Moumouni, Xiaoqing Liu, Artemis Efstratiou, Zhanbin Liu, Yangqing Liu, Huiying Tao, Huanping Guo, Guanbo Wang, Yang Gao, Zifen Li, Aaron Edmund Ringo, Charoonluk Jirapattharasate, Haiying Chen, Xuenan Xuan
In this study, blood samples obtained from 162 dogs in Jiangxi, China, were employed in molecular screening of canine tick-borne pathogens by PCR and sequencing. Babesia spp. gene fragment was detected in 12 (7.41%) dogs. All samples were negative for Hepatozoon spp., Ehrlichia canis, Coxiella spp., Borrelia spp., Rickettsia spp. and Anaplasma platys. Species-specific PCR analysis further confirmed that 8 (4.94%) and 4 (2.47%) dogs were infected by Babesia canis vogeli and Babesia gibsoni, respectively. Based on our analyses, Babesia spp...
November 26, 2016: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/27884572/tick-borne-encephalitis-virus-neutralization-by-high-dose-intravenous-immunoglobulin
#7
Jana Elsterova, Martin Palus, Jana Sirmarova, Jan Kopecky, Hans Helmut Niller, Daniel Ruzek
Tick-borne encephalitis (TBE) is a potentially lethal neuroinfection in humans, caused by TBE virus (TBEV). Currently, there are no approved therapeutic agents to treat TBE. Previously, it was suggested that application of high dose intravenous immunoglobulin (IVIG) may pose potentially successful treatment for severe cases of TBE. In this study, we determined the titers of TBEV-neutralizing antibodies in two IVIG lots originating from the same manufacturer, and tested their ability to treat a lethal TBEV-infection in a mouse model...
November 18, 2016: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/27881648/modeling-severe-fever-with-thrombocytopenia-syndrome-virus-infection-in-golden-syrian-hamsters-importance-of-stat2-in-preventing-disease-and-effective-treatment-with-favipiravir
#8
Brian B Gowen, Jonna B Westover, Jinxin Miao, Arnaud J Van Wettere, Johanna D Rigas, Brady T Hickerson, Kie-Hoon Jung, Rong Li, Bettina L Conrad, Skot Nielson, Yousuke Furuta, Zhongde Wang
: Severe fever with thrombocytopenia syndrome (SFTS) is an emerging tick-borne disease endemic in parts of Asia. The etiologic agent, SFTS virus (SFTSV; Bunyaviridae family, Phlebovirus genus) has caused significant morbidity and mortality in China, Korea, and Japan, with key features of disease being intense fever, thrombocytopenia, and leukopenia. Case fatality rates are estimated in the 30% range and no antivirals or vaccines are approved for use for treatment and prevention of SFTS...
November 23, 2016: Journal of Virology
https://www.readbyqxmd.com/read/27878428/seroprevalence-of-anaplasma-marginale-and-babesia-bigemina-infections-and-associated-risk-factors-in-machakos-county-kenya
#9
F D Wesonga, J M Gachohi, P M Kitala, J M Gathuma, M J Njenga
Anaplasma marginale and Babesia bigemina are important tick-borne pathogens of cattle. A cross-sectional survey was undertaken to determine the seroprevalence of A. marginale and B. bigemina infections and identify associated risk factors on traditional smallholder farms in Machakos County, Kenya. A total of 421 cattle from 127 farms from four divisions in the county were sampled and visited between September and November 2007. The farms were selected by a proportional allocation approach based on the number of farms in the four divisions previously selected by stratified random sampling method...
November 22, 2016: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/27876087/heterogeneity-in-the-abundance-and-distribution-of-ixodes-ricinus-and-borrelia-burgdorferi-sensu-lato-in-scotland-implications-for-risk-prediction
#10
Caroline Millins, Lucy Gilbert, Paul Johnson, Marianne James, Elizabeth Kilbride, Richard Birtles, Roman Biek
BACKGROUND: Cases of Lyme borreliosis, a vector-borne zoonosis caused by bacteria in the Borrelia burgdorferi (sensu lato) species group, have increased in recent years in Europe. Knowledge of environmental factors associated with abundance of the tick vector Ixodes ricinus and the pathogen B. burgdorferi (s.l.) is of interest to understand responses to environmental changes, predict variation in risk and to inform management interventions. METHODS: Nineteen woodland sites across Scotland were surveyed in 2012 for B...
November 22, 2016: Parasites & Vectors
https://www.readbyqxmd.com/read/27875810/nonstructural-protein-1-of-tick-borne-encephalitis-virus-induces-oxidative-stress-and-activates-antioxidant-defense-by-the-nrf2-are-pathway
#11
Yulia V Kuzmenko, Olga A Smirnova, Alexander V Ivanov, Elizaveta S Starodubova, Vadim L Karpov
BACKGROUND: Infection with tick-borne encephalitis virus (TBEV) causes pathological changes in the central nervous system. However, the possible redox alterations in the infected cells that can contribute to the virus pathogenicity remain unknown. OBJECTIVE: In the current study we explored the ability of TBEV nonstructural protein 1 (NS1) to induce oxidative stress and activate antioxidant defense via the nuclear factor (erythroid-derived-2)-like 2/antioxidant response element (Nrf2/ARE) pathway...
November 23, 2016: Intervirology
https://www.readbyqxmd.com/read/27870540/lyme-disease-in-poland-in-2014
#12
Iwona Paradowska-Stankiewicz, Irena Chrześcijańska
INTRODUCTION: Lyme disease is the most common tick-borne disease, caused by spirochetes of the Borrelia genus transmitted by ticks of the Ixodes genus. Infection caused by Borrelia burgdorferi occur throughout Poland and therefore, according also to ECDC description, the whole country should be considered as an endemic area. OBJECTIVES: The aim of this study was to assess the epidemiological situation of Lyme disease in Poland in 2014 in comparison to the previous years...
2016: Przegla̧d Epidemiologiczny
https://www.readbyqxmd.com/read/27860010/detection-of-lyme-disease-and-anaplasmosis-pathogens-via-pcr-in-pennsylvania-deer-ked
#13
M Buss, L Case, B Kearney, C Coleman, J D Henning
Borrelia burgdorferi and Anaplasma phagocytophilum are obligate intracellular parasites that maintain their life cycles in enzoonotic vector-host cycles with Ixodes scapularis as a vector. In addition to ticks, the hosts are commonly infested with insects from the Hippoboscidae family. This study confirms the presence of B. burgdorferi and A. phagocytophilum in deer keds (Lipoptena cervi) removed from white-tailed deer using PCR. Detection of these pathogens in deer ked represents a potential novel susceptibility of wildlife and also suggests the risk of transmission of these pathogens to humans and animals alike through the bite of an infected ectoparasite...
December 2016: Journal of Vector Ecology: Journal of the Society for Vector Ecology
https://www.readbyqxmd.com/read/27852813/initial-development-and-preliminary-evaluation-of-a-multiplex-bead-assay-to-detect-antibodies-to-ehrlichia-canis-anaplasma-platys-and-ehrlichia-chaffeensis-outer-membrane-peptides-in-naturally-infected-dogs-from-grenada-west-indies
#14
Melinda J Wilkerson, Kelley E Black, Marta Lanza-Perea, Bhumika Sharma, Kathryn Gibson, Diana M Stone, Anushka George, Arathy D S Nair, Roman R Ganta
Tick-borne bacteria, Ehrlichia canis, Anaplasma platys, and Ehrlichia chaffeensis are significant pathogens of dogs worldwide, and coinfections of E. canis and A. platys are common in dogs on the Caribbean islands. We developed and evaluated the performance of a multiplex bead-based assay to detect antibodies to E. canis, A. platys, and E. chaffeensis peptides in dogs from Grenada, West Indies, where E. canis and A. platys infections are endemic. Peptides from outer membrane proteins of P30 of E. canis, OMP-1X of A...
November 15, 2016: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/27852421/individual-and-environmental-factors-associated-with-the-seroprevalence-of-borrelia-burgdorferi-in-belgian-farmers-and-veterinarians
#15
Mathilde De Keukeleire, Annie Robert, Benoît Kabamba, Elise Dion, Victor Luyasu, Sophie O Vanwambeke
BACKGROUND: Lyme disease (LD) is a common tick-borne disease in Europe. Diverse factors at various scales determine the spatial distribution of Borrelia burgdorferi infection risk and a better understanding of those factors in a spatially explicit framework is needed for disease management and prevention. While the ecology of ticks and the landscape favoring their abundance have been extensively studied, the environmental conditions favoring an intense contact with susceptible humans, including groups at risk, are sparse...
2016: Infection Ecology & Epidemiology
https://www.readbyqxmd.com/read/27847963/-challenge-of-neuroborreliosis
#16
A Spreer, S Rauer, H Wilking, V Fingerle
Lyme borreliosis is the most frequent tick-borne infection in Europe. It is a multisystemic disease affecting the skin, joints, heart, in rare cases the eyes and regularly the nervous system. Taking current clinical and microbiological guidelines into account, neuroborreliosis can in general be diagnosed and treated successfully. An appropriate guideline-conform antibiotic treatment is effective and in most cases recovery from acute neuroborreliosis is complete. Nevertheless, the evidence base regarding pharmacological treatment needs reform and improvement...
November 15, 2016: Der Nervenarzt
https://www.readbyqxmd.com/read/27846275/prevalence-of-rickettsia-spp-in-ticks-and-serological-and-clinical-outcomes-in-tick-bitten-individuals-in-sweden-and-on-the-%C3%A3-land-islands
#17
Anders Lindblom, Katarina Wallménius, Johanna Sjöwall, Linda Fryland, Peter Wilhelmsson, Per-Eric Lindgren, Pia Forsberg, Kenneth Nilsson
Tick-transmitted diseases are an emerging health problem, and the hard tick Ixodes ricinus is the main vector for Borrelia spp., tick-borne encephalitis virus and most of the spotted fever Rickettsiae in Europe. The aim of the present study was to examine the incidence of rickettsial infection in the southernmost and south central parts of Sweden and the Åland Islands in Finland, the risk of infection in humans and its correlation with a bite of a Rickettsia-infected tick, the self-reported symptoms of rickettsial disease, and the prevalence of co-infection between Rickettsia spp...
2016: PloS One
https://www.readbyqxmd.com/read/27836839/multi-strain-infections-of-the-lyme-borreliosis-pathogen-in-the-tick-vector
#18
Jonas Durand, Coralie Herrmann, Dolores Genné, Anouk Sarr, Lise Gern, Maarten J Voordouw
: Mixed or multiple-strain infections are common in vector-borne diseases and have important implications for the epidemiology of these pathogens. Previous studies have mainly focused on interactions between pathogen strains in the vertebrate host, but little is known about what happens in the arthropod vector. Borrelia afzelii and B. garinii are two species of spirochete bacteria that cause Lyme borreliosis in Europe and that share a common tick vector Ixodes ricinus Each of these two tick-borne pathogens consists of multiple strains that are often differentiated using the highly polymorphic ospC gene...
November 11, 2016: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/27834404/small-regulatory-rnas-of-rickettsia-conorii
#19
Hema P Narra, Casey L C Schroeder, Abha Sahni, Mark Rojas, Kamil Khanipov, Yuriy Fofanov, Sanjeev K Sahni
Small regulatory RNAs comprise critically important modulators of gene expression in bacteria, yet very little is known about their prevalence and functions in Rickettsia species. R. conorii, the causative agent of Mediterranean spotted fever, is a tick-borne pathogen that primarily infects microvascular endothelium in humans. We have determined the transcriptional landscape of R. conorii during infection of Human Microvascular Endothelial Cells (HMECs) by strand-specific RNA sequencing to identify 4 riboswitches, 13 trans-acting (intergenic), and 22 cis-acting (antisense) small RNAs (termed 'Rc_sR's)...
November 11, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27832805/host-associations-and-genomic-diversity-of-borrelia-hermsii-in-an-endemic-focus-of-tick-borne-relapsing-fever-in-western-north-america
#20
Tammi L Johnson, Robert J Fischer, Sandra J Raffel, Tom G Schwan
BACKGROUND: An unrecognized focus of tick-borne relapsing fever caused by Borrelia hermsii was identified in 2002 when five people became infected on Wild Horse Island in Flathead Lake, Montana. The terrestrial small mammal community on the island is composed primarily of pine squirrels (Tamiasciurus hudsonicus) and deer mice (Peromyscus maniculatus), neither of which was known as a natural host for the spirochete. Thus a 3-year study was performed to identify small mammals as hosts for B...
November 10, 2016: Parasites & Vectors
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