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Anaplasmosis

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https://www.readbyqxmd.com/read/28725639/anaplasma-phagocytophilum-msp4-and-hsp70-proteins-are-involved-in-interactions-with-host-cells-during-pathogen-infection
#1
Marinela Contreras, Pilar Alberdi, Lourdes Mateos-Hernández, Isabel G Fernández de Mera, Ana L García-Pérez, Marie Vancová, Margarita Villar, Nieves Ayllón, Alejandro Cabezas-Cruz, James J Valdés, Snorre Stuen, Christian Gortazar, José de la Fuente
Anaplasma phagocytophilum transmembrane and surface proteins play a role during infection and multiplication in host neutrophils and tick vector cells. Recently, A. phagocytophilum Major surface protein 4 (MSP4) and Heat shock protein 70 (HSP70) were shown to be localized on the bacterial membrane, with a possible role during pathogen infection in ticks. In this study, we hypothesized that A. phagocytophilum MSP4 and HSP70 have similar functions in tick-pathogen and host-pathogen interactions. To address this hypothesis, herein we characterized the role of these bacterial proteins in interaction and infection of vertebrate host cells...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28722620/case-report-infectious-diseases-in-pilgrims-visiting-the-holy-land
#2
Orna Nitzan, Arnon Blum, Esther Marva, Adina Katz, Bat-Sheva Tzadok, Yaarit Nachum-Biala, Gad Baneth, Avi Peretz
Every year Christian pilgrims from around the world visit the holy sites located around the Sea of Galilee. Some become ill during their stay with infectious diseases that were acquired in their country of origin, and are hospitalized at Poriya Medical Center. They pose a diagnostic challenge due to language barriers, the rarity of these infections in Israel, and the fact that diagnostic tests are not readily available. All patient records from 2015 of Holy Land tourists hospitalized at Poriya Medical Center were screened for the diagnosis of imported zoonotic diseases that are not commonly diagnosed in Israel...
May 30, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28722568/epidemiology-of-spotted-fever-group-rickettsioses-and-acute-undifferentiated-febrile-illness-in-villeta-colombia
#3
Álvaro A Faccini-Martínez, Alejandro Ramírez-Hernández, Christian Barreto, Elkin Forero-Becerra, Diego Millán, Elkin Valbuena, Andrea C Sánchez-Alfonso, Wilson O Imbacuán-Pantoja, Jesús A Cortés-Vecino, Luis J Polo-Terán, Néstor Yaya-Lancheros, Jorge Jácome, Ana M Palomar, Sonia Santibáñez, Aránzazu Portillo, José A Oteo, Marylin Hidalgo
Etiology of acute undifferentiated febrile syndrome (AUFS) is often unknown, leading to inaccurate diagnosis and treatment. Villeta town has been identified as an endemic area for spotted fever group (SFG) rickettsioses but little is known about possible amplifier hosts and other Rickettsia species different from Rickettsia rickettsii. Besides, few studies have approached other AUFS etiologies in the region. We investigated the role of dengue, leptospirosis, rickettsioses, human anaplasmosis, and Q fever as possible causes of AUFS in patients from Villeta...
June 19, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28683059/babesiosis-surveillance-wisconsin-2001-2015
#4
Elizabeth Stein, Lina I Elbadawi, James Kazmierczak, Jeffrey P Davis
Babesiosis is an emerging zoonotic disease caused primarily by Babesia microti, an intraerythocytic protozoan. Babesia microti, like the causal agents for Lyme disease and anaplasmosis, is endemic to the northeastern and upper midwestern United States where it is usually transmitted by the blacklegged tick, Ixodes scapularis. Although babesiosis is usually a mild to moderate illness, older or immunocompromised persons can develop a serious malaria-like illness that can be fatal without prompt treatment. The most common initial clinical signs and symptoms of babesiosis (fever, fatigue, chills, and diaphoresis) are nonspecific and present diagnostic challenges that can contribute to delays in diagnosis and effective treatment with atovaquone and azithromycin (1)...
July 7, 2017: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/28645313/molecular-investigation-and-phylogeny-of-anaplasmataceae-species-infecting-domestic-animals-and-ticks-in-corsica-france
#5
Mustapha Dahmani, Bernard Davoust, Djamel Tahir, Didier Raoult, Florence Fenollar, Oleg Mediannikov
BACKGROUNDS: Corsica is a French island situated in the Mediterranean Sea. The island provides suitable natural conditions to study disease ecology, especially tick-borne diseases and emerging diseases in animals and ticks. The family Anaplasmataceae is a member of the order Rickettsiales; it includes the genera Anaplasma, Ehrlichia, Neorickettsia and Wolbachia. Anaplasmosis and ehrlichiosis traditionally refer to diseases caused by obligate intracellular bacteria of the genera Anaplasma and Ehrlichia...
June 23, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28632488/vector-borne-pathogens-in-stray-dogs-in-northeastern-turkey
#6
Esin Guven, Hamza Avcioglu, Seyda Cengiz, Armagan Hayirli
This experiment was carried out to attain prevalence and molecular characterization of pathogens causing canine vector-borne diseases (CVBDs) including babesiosis, hepatozoonosis, leishmaniasis, filariosis (Dirofilaria immitis, Dirofilaria repens, and Acanthocheilonema reconditum), ehrlichiosis (Ehrlichia canis), and anaplasmosis (Anaplasma platys) in stray dogs. The study material consisted of 133 asymptomatic female (n = 96) and male (n = 37) stray dogs (≤1 year old, n = 16 and 1-6 years old, n = 117) housed in the Animal Care and Rehabilitation Center, Erzurum, Northeastern Turkey...
June 20, 2017: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/28629740/seasonal-dynamics-spatial-distribution-and-genetic-analysis-of-anaplasma-species-infecting-small-ruminants-from-northern-tunisia
#7
Hanène Belkahia, Mourad Ben Said, Narjesse El Mabrouk, Mariem Saidani, Chayma Cherni, Mariem Ben Hassen, Ali Bouattour, Lilia Messadi
To date, there have been no reports on seasonal variations of Anaplasma spp. in South Mediterranean small ruminants. In this longitudinal field study, single and mixed Anaplasma spp. infections in small ruminants from five different governorates belonging to three bioclimatic zones from the North of Tunisia were evaluated according to seasons. A total of 1685 blood small ruminant samples were collected in spring (355 sheep and 241 goats), summer (249 sheep and 202 goats), autumn (236 sheep and 186 goats) and winter (132 sheep and 84 goats)...
June 17, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28628633/pro-inflammatory-immune-responses-are-associated-with-clinical-signs-and-symptoms-of-human-anaplasmosis
#8
Anna M Schotthoefer, Steven J Schrodi, Jennifer K Meece, Thomas R Fritsche, Sanjay K Shukla
Human anaplasmosis (HA) is an emerging tick-borne disease that may present as a mild flu-like illness or a life threatening, sepsis-like condition. Although disease severity is hypothesized to relate to immunopathology and immune dysfunction in humans, studies to directly measure immune responses in infected humans have been very limited. We quantified cytokines in 80 confirmed HA patients using a multiplex chemiluminescence immunoassay system and compared similarly measured responses in 1000 control subjects...
2017: PloS One
https://www.readbyqxmd.com/read/28620610/molecular-detection-of-tick-borne-pathogen-diversities-in-ticks-from-livestock-and-reptiles-along-the-shores-and-adjacent-islands-of-lake-victoria-and-lake-baringo-kenya
#9
David Omondi, Daniel K Masiga, Burtram C Fielding, Edward Kariuki, Yvonne Ukamaka Ajamma, Micky M Mwamuye, Daniel O Ouso, Jandouwe Villinger
Although diverse tick-borne pathogens (TBPs) are endemic to East Africa, with recognized impact on human and livestock health, their diversity and specific interactions with tick and vertebrate host species remain poorly understood in the region. In particular, the role of reptiles in TBP epidemiology remains unknown, despite having been implicated with TBPs of livestock among exported tortoises and lizards. Understanding TBP ecologies, and the potential role of common reptiles, is critical for the development of targeted transmission control strategies for these neglected tropical disease agents...
2017: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/28615038/prevalence-and-genetic-variability-of-anaplasma-phagocytophilum-in-wild-rodents-from-the-italian-alps
#10
Fausta Rosso, Valentina Tagliapietra, Ivana Baráková, Marketa Derdáková, Adam Konečný, Heidi Christine Hauffe, Annapaola Rizzoli
BACKGROUND: Human granulocytic anaplasmosis is a zoonotic bacterial disease with increasing relevance for public health in Europe. The understanding of its sylvatic cycle and identification of competent reservoir hosts are essential for improving disease risk models and planning preventative measures. RESULTS: In 2012 we collected single ear biopsy punches from 964 live-trapped rodents in the Province of Trento, Italy. Genetic screening for Anaplasma phagocytophilum (AP) was carried out by PCR amplification of a fragment of the 16S rRNA gene...
June 14, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28584460/hemophagocytic-lymphohistiocytosis-associated-with-anaplasmosis
#11
Tamara M Johnson, Melinda S Brown, Mohamed Rabbat, Jihad Slim
Hemophagocytic lymphohistiocytosis (HLH) is a hyperinflammatory syndrome characterized by unregulated macrophage and T-lymphocyte activation resulting in cytokine overproduction and subsequent histiocytic phagocytosis. Variant infections, particularly viruses have been postulated as the inciting factor for this potentially fatal disease. Herein, we will report a case of HLH associated with anaplasmosis.
April 2017: Journal of Global Infectious Diseases
https://www.readbyqxmd.com/read/28580297/comparison-of-natural-and-artificial-odor-lures-for-nilgai-boselaphus-tragocamelus-and-white-tailed-deer-odocoileus-virginianus-in-south-texas-developing-treatment-for-cattle-fever-tick-eradication
#12
John A Goolsby, Nirbhay K Singh, Alfonso Ortega-S, David G Hewitt, Tyler A Campbell, David Wester, Adalberto A Pérez de León
Cattle fever ticks (CFT), vectors of bovine babesiosis and anaplasmosis, were eradicated from the United States by 1943, but are frequently reintroduced from neighboring border states of Mexico via stray cattle and wildlife hosts including white-tailed deer (Odocoileus virginianus) (WTD) and nilgai antelope (Boselaphus tragocamelus). Nilgai antelope are exotic bovids from India that are hosts of CFT, have large home ranges as compared to WTD, thus have the potential to spread CFT through the landscape. Currently, there are no methods to control CFT on nilgai...
August 2017: International Journal for Parasitology. Parasites and Wildlife
https://www.readbyqxmd.com/read/28558749/a-novel-zoonotic-anaplasma-species-is-prevalent-in-small-ruminants-potential-public-health-implications
#13
Jifei Yang, Zhijie Liu, Qingli Niu, Junlong Liu, Rong Han, Guiquan Guan, Muhammad Adeel Hassan, Guangyuan Liu, Jianxun Luo, Hong Yin
BACKGROUND: Tick-borne diseases currently represent an important issue for global health. A number of emerging tick-transmitted microbes continue to be discovered, and some of these are already identified as the cause of human infections. Over the past two decades, Anaplasma phagocytophilum is considered to be mainly responsible for human anaplasmosis. However, a novel zoonotic pathogen provisionally named "Anaplasma capra" has recently been identified in China. In this study, we did an active surveillance of A...
May 30, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28526564/direct-detection-of-anaplasma-phagocytophilum-by-polymerase-chain-reaction-followed-by-electrospray-ionization-mass-spectrometry-from-human-blood
#14
Heimo Lagler, Nicole Harrison, Manuel Kussmann, Markus Obermüller, Heinz Burgmann, Athanasios Makristathis, Michael Ramharter
Bacterial pathogens not detectable via commercial blood culture assays represent an important challenge for infectious disease physicians, in particular if clinical symptoms of the illness are non-specific. In this report, Anaplasma phagocytophilum was detected directly in a peripheral blood sample from a febrile patient reporting a tick bite. This was done using a commercial system based on PCR followed by electrospray ionization mass spectrometry (ESI-MS). The diagnosis of a human granulocytic anaplasmosis infection was established using this diagnostic methodology for the first time...
July 2017: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/28520981/clinical-presentation-and-outcomes-of-children-with-human-granulocytic-anaplasmosis
#15
Anna M Schotthoefer, Matthew C Hall, Satya Vittala, Raza Bajwa, Holly M Frost
Background.: Adults with the tick-borne disease human granulocytic anaplasmosis (HGA) have a spectrum of acute febrile illnesses that, if untreated, might be severe. Clinical presentation and outcomes of children with HGA have been poorly described. Methods.: A retrospective analysis was conducted to determine the frequency, presentation, and outcomes of pediatric patients with HGA between 1994 and 2015 in a region of Wisconsin in which HGA is highly endemic. Patients with related International Classification of Diseases Ninth and Tenth Revision (ICD-9 and ICD-10, respectively) codes or positive HGA laboratory test results were evaluated and classified as having had confirmed, probable, or suspected HGA on the basis of the Centers for Disease Control and Prevention (CDC) case definition...
May 16, 2017: Journal of the Pediatric Infectious Diseases Society
https://www.readbyqxmd.com/read/28503372/endosymbiont-interference-and-microbial-diversity-of-the-pacific-coast-tick-dermacentor-occidentalis-in-san-diego-county-california
#16
Nikos Gurfield, Saran Grewal, Lynnie S Cua, Pedro J Torres, Scott T Kelley
The Pacific coast tick, Dermacentor occidentalis Marx, is found throughout California and can harbor agents that cause human diseases such as anaplasmosis, ehrlichiosis, tularemia, Rocky Mountain spotted fever and rickettsiosis 364D. Previous studies have demonstrated that nonpathogenic endosymbiotic bacteria can interfere with Rickettsia co-infections in other tick species. We hypothesized that within D. occidentalis ticks, interference may exist between different nonpathogenic endosymbiotic or nonendosymbiotic bacteria and Spotted Fever group Rickettsia (SFGR)...
2017: PeerJ
https://www.readbyqxmd.com/read/28476972/development-and-in-vitro-evaluation-of-oxytetracycline-loaded-pmma-nanoparticles-for-oral-delivery-against-anaplasmosis
#17
Lakshminarayana Turuvekere SadguruPrasad, Basavaraj Madhusudhan, Prakash Kodihalli B, Prahlad Chandra Ghosh
Poly-methyl methacrylate (PMMA) polymer with remarkable properties and merits are being preferred in various biomedical applications due to its biocompatibility, non-toxicity and cost effectiveness. In this investigation, oxytetracycline-loaded PMMA nanoparticles were prepared using nano-precipitation method for the treatment of anaplasmosis. The prepared nanoparticles were characterised using dynamic light scattering (DLS), atomic force microscopy (AFM), differential scanning calorimetry (DSC) and Fourier transform infrared (FTIR) spectroscopy...
February 2017: IET Nanobiotechnology
https://www.readbyqxmd.com/read/28457353/tick-borne-emerging-infections-ehrlichiosis-and-anaplasmosis
#18
REVIEW
Nahed Ismail, Jere W McBride
Human ehrlichiosis and anaplasmosis are acute febrile tick-borne infectious diseases caused by various members from the genera Ehrlichia and Anaplasma. Ehrlichia chaffeensis is the major etiologic agent of human monocytotropic ehrlichiosis (HME), while Anaplasma phagocytophilum is the major cause of human granulocytic anaplasmosis (HGA). The clinical manifestations of HME and HGA ranges from subclinical to potentially life-threatening diseases associated with multi-organ failure. Macrophages and neutrophils are the major target cells for Ehrlichia and Anaplasma, respectively...
June 2017: Clinics in Laboratory Medicine
https://www.readbyqxmd.com/read/28428133/epidemiological-study-of-common-diseases-and-their-risk-factors-in-camels-in-south-punjab-pakistan
#19
Aneela Zameer Durrani, Zubair Bashir, Imran Rasheed, Noor-Ul-Ain Sarwar
Bacteriological study of mastitis along with common blood protozoan diseases were studied in dromedary camels in Cholistan, Dera Ismail Khan and Rahim Yar Khan districts in South Punjab, Pakistan. For this purpose 300 camels were sampled randomly at different common grazing and watering point. For study of blood parasites clinically suspected and apparently healthy camels, 150 each, were sampled. An overall prevalence of 15%and 5% was recorded for trypanosomiasis and Anaplasmosis respectively. Trypanosoma evansi was identified with 280 bp product on polymerase chain reaction test...
July 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28408334/the-transcription-factor-relish-controls-anaplasma-marginale-infection-in-the-bovine-tick-rhipicephalus-microplus
#20
J Capelli-Peixoto, Danielle D Carvalho, Wendell C Johnson, Glen A Scoles, Andrea C Fogaça, Sirlei Daffre, Massaro W Ueti
Rhipicephalus microplus is an important biological vector of Anaplasma marginale, the etiological agent of bovine anaplasmosis. The knowledge of tick immune responses to control bacterial infections remains limited. In this study, we demonstrate that transcription factor Relish from the IMD signaling pathway has an important role in the control of A. marginale infection in ticks. We found that RNA-mediated silencing of Relish caused a significant increase in the number of A. marginale in the midgut and salivary glands of R...
April 10, 2017: Developmental and Comparative Immunology
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