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https://www.readbyqxmd.com/read/29780749/-rhipicephalus-bursa-sialotranscriptomic-response-to-blood-feeding-and-babesia-ovis-infection-identification-of-candidate-protective-antigens
#1
Sandra Antunes, Joana Couto, Joana Ferrolho, Fábio Rodrigues, João Nobre, Ana S Santos, M Margarida Santos-Silva, José de la Fuente, Ana Domingos
Ticks are among the most prevalent blood-feeding arthropods, and they act as vectors and reservoirs for numerous pathogens. Sialotranscriptomic characterizations of tick responses to blood feeding and pathogen infections can offer new insights into the molecular interplay occurring at the tick-host-pathogen interface. In the present study, we aimed to identify and characterize Rhipicephalus bursa salivary gland (SG) genes that were differentially expressed in response to blood feeding and Babesia ovis infection...
2018: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/29774285/molecular-prevalence-of-babesia-bigemina-in-rhipicephalus-microplus-ticks-infesting-cross-bred-cattle-of-punjab-india
#2
S A Bhat, N K Singh, H Singh, S S Rath
Babesiosis is an economically important tick-borne apicomplexan protozoan disease of cattle in tropical and subtropical regions. In the present study, Rhipicephalus microplus engorged female ticks were collected from 135 apparently healthy cattle from different agro-climatic zones of Punjab, India, to investigate the carrier status of Babesia bigemina infection in vector tick by using microscopy and PCR based assays. PCR when applied on DNA extracted from the egg masses harvested from ticks showed 1.48% (2/135) samples as positive, whereas 4...
August 2017: Parasite Epidemiology and Control
https://www.readbyqxmd.com/read/29774138/clinical-evaluation-of-morgellons-disease-in-a-cohort-of-north-american-patients
#3
Melissa C Fesler, Marianne J Middelveen, Raphael B Stricker
Morgellons disease (MD) is a dermatological condition characterized by aberrant production of keratin and collagen fibers in skin. Although infection with Borrelia burgdorferi , the causative agent of Lyme disease (LD), has been associated with MD, relatively few studies have hitherto provided epidemiological evidence regarding this association. A cohort of 1000 seropositive North American LD patients was evaluated for the presence of MD. Patients were diagnosed with MD based on detection of microscopic fibers in skin lesions or under unbroken skin...
April 23, 2018: Dermatology Reports
https://www.readbyqxmd.com/read/29773141/the-application-of-the-hyper-fluorescent-sensor-in-the-real-time-detection-of-h-2-o-2-in-babesia-bovis-merozoites-in-vitro
#4
Masahito Asada, Hassan Hakimi, Shin-Ichiro Kawazu
In recent years, genetically encoded fluorescent probes have allowed a dramatic advancement in time-lapse imaging, enabling this imaging modality to be used to investigate intracellular events in several apicomplexan parasite species. In this study, we constructed a plasmid vector to stably express a genetically encoded H2 O2 sensor probe called HyPer in Babesia bovis. The HyPer-transfected parasite population was successfully developed and subjected to a time-lapse imaging analysis under in vitro culture conditions...
May 15, 2018: Veterinary Parasitology
https://www.readbyqxmd.com/read/29773138/multiplex-hydrolysis-probe-assay-for-the-simultaneous-detection-of-theileria-equi-and-babesia-caballi-infections-in-equids
#5
Raksha V Bhoora, Ronel Pienaar, Frances Cornelius, Antoinette Josemans, Olivier Matthee, Ratselane Marumo, Christo Troskie, Ben J Mans
Quantitative real-time PCR assays previously developed for the detection of Theileria equi and Babesia caballi, were combined in a single multiplex TaqMan qPCR platform for the simultaneous detection of both heamoprotozoan parasites in equids. The multiplex equine piroplasmosis (M-EP) qPCR assay was shown to be efficient and specific. The detection limit was determined to be 1.4 × 10-4 % parasitized erythrocytes (PE) for T. equi and 2.8 × 10-4 % PE for B. caballi. The effect of differential DNA concentrations on the outcome of the M-EP qPCR for each target species was also investigated...
May 15, 2018: Veterinary Parasitology
https://www.readbyqxmd.com/read/29772759/human-babesiosis-caused-by-babesia-duncani-has-widespread-distribution-across-canada
#6
John D Scott, Catherine M Scott
Human babesiosis caused by Babesia duncani is an emerging infectious disease in Canada. This malaria-like illness is brought about by a protozoan parasite infecting red blood cells. Currently, controversy surrounds which tick species are vectors of B. duncani. Since the availability of a serological or molecular test in Canada for B. duncani has been limited, we conducted a seven-year surveillance study (2011⁻2017) to ascertain the occurrence and geographic distribution of B. duncani infection country-wide...
May 17, 2018: Healthcare (Basel, Switzerland)
https://www.readbyqxmd.com/read/29766270/parasitological-and-molecular-diagnostic-of-a-clinical-babesia-caballi-outbreak-in-southern-romania
#7
Mariana Ionita, Isabela Madalina Nicorescu, Kurt Pfister, Ioan Liviu Mitrea
Equine piroplasmosis (EP) is a tick-borne disease of equids caused by Babesia caballi and/or Theileria equi, which is endemic in many tropical and temperate areas of the world. However, clinical outbreaks of EP in Romania during the last decades have not been reported Therefore, the aim of this paper is (i) to describe a clinical B. caballi outbreak in horses on several farms in Southern Romania using a diagnostic and therapeutic approach and (ii) the molecular diagnostic of EP in an endemic area of Romania...
May 15, 2018: Parasitology Research
https://www.readbyqxmd.com/read/29762747/detection-of-babesia-spp-in-dogs-and-their-ticks-from-peninsular-malaysia-emphasis-on-babesia-gibsoni-and-babesia-vogeli-infections-in-rhipicephalus-sanguineus-sensu-lato-acari-ixodidae
#8
Batah Kunalan Prakash, Van Lun Low, Wei Yin Vinnie-Siow, Tiong Kai Tan, Yvonne Ai-Lian Lim, Akhavan Rezaei Morvarid, Sazaly AbuBakar, Mohd Sofian-Azirun
Canine babesiosis is an emerging tick-borne disease with a worldwide distribution, including Malaysia. While the prevalence of Babesia has been documented from dogs in Malaysia, occurrence of Babesia has been relatively little studied in their tick vectors. Accordingly, a total of 240 dogs and 140 Rhipicephalus sanguineus sensu lato (s.l.) (Acari: Ixodidae) ticks from Malaysia were molecularly screened for the presence of Babesia protozoa in the present study. Babesia gibsoni was only detected in ticks (1.4%), whereas Babesia vogeli was detected in both ticks (1...
May 12, 2018: Journal of Medical Entomology
https://www.readbyqxmd.com/read/29754986/the-microbiome-of-haemaphysalis-lemuris-acari-ixodidae-a-possible-vector-of-pathogens-of-endangered-lemur-species-in-madagascar
#9
Paula Lado, Barbara Qurollo, Cathy Williams, Randall Junge, Hans Klompen
Lemurs are primate species that are endemic to Madagascar. At present, about 90% of lemur species are endangered, and 5 species are among the 25 most endangered primates worldwide. Health status is a major factor impacting the viability of wild populations of many endangered species including lemurs. Given this context, we analyzed the microbiome of 24 specimens of Haemaphysalis lemuris, the most common tick parasitizing lemurs in their native habitats. Ticks were collected from 6 lemur species and microbiomes analyzed using next-generation sequencing...
May 2, 2018: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/29752142/genetic-diversity-of-theileria-equi-and-babesia-caballi-infecting-horses-of-central-southern-italy-and-preliminary-results-of-its-correlation-with-clinical-and-serological-status
#10
Giuseppe Manna, Antonella Cersini, Roberto Nardini, Leticia Elisa Bartolomé Del Pino, Valeria Antognetti, Maurizio Zini, Raffaella Conti, Raniero Lorenzetti, Vincenzo Veneziano, Gian Luca Autorino, Maria Teresa Scicluna
Babesia caballi and Theileria equi are tick-borne pathogens causing equine piroplasmosis infecting the Equidae family in which they cause significant sanitary and economic losses. Furthermore, equine piroplasmosis is included in the World Animal Health Organization (OIE) notifiable diseases list with possible movement restrictions for positive horses. Thirty-nine EDTA and whole-blood samples collected during 2013 and 2014 from symptomatic and asymptomatic horses of Central-Southern Italy were included in the present study either because of their strongly positive results in Real Time (RT) PCRs targeting the 18S rRNA gene specific for each piroplasm and/or due to their serological ELISA/18S rRNA RT-PCR discordant results...
May 4, 2018: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/29746483/efficient-detection-of-symptomatic-and-asymptomatic-patient-samples-for-babesia-microti-and-borrelia-burgdorferi-infection-by-multiplex-qpcr
#11
Shekerah Primus, Lavoisier Akoolo, Samantha Schlachter, Kristine Gedroic, Albert D Rojtman, Nikhat Parveen
BACKGROUND: Tick-borne infections have been increasing steadily over the years, with co-infections with Borrelia burgdorferi and Babesia microti/divergens emerging as a serious health problem. B. burgdorferi is a spirochetal bacterium that causes Lyme disease while protozoan pathogens belonging to Babesia species are responsible for babesiosis. Currently used serological tests do not always detect acute Lyme disease or babesiosis, and fail to differentiate cured patients from those who get re-infected...
2018: PloS One
https://www.readbyqxmd.com/read/29743308/performance-evaluation-of-a-prototype-architect-antibody-assay-for-babesia-microti
#12
Kevin Cheng, Kelly E Coller, Christopher C Marohnic, Zachary A Pfeiffer, James R Fino, Randee R Elsing, Janet Bergsma, Marilee A Marcinkus, Alak K Kar, Orlando H Gumbs, Kathy S Otis, Jeffrey Fishpaugh, Phillip W Schultz, Mark R Pope, Alfredo R Narvaez, Susan J Wong, Susan Madison-Antenucci, Thomas P Leary, George J Dawson
The tick-borne protozoan Babesia microti is responsible for more than 200 cases of transfusion-transmitted babesiosis (TTB) infection in the United States over the last 30 years. Measures to mitigate the risk of TTB include nucleic acid testing (NAT) and B. microti antibody testing. A fully automated prototype B. microti antibody test was developed on the ARCHITECT instrument. The specificity was determined to be 99.98% in volunteer blood donors (n=28,740) from areas considered as low endemic for B. microti The sensitivity of the prototype test was studied in experimentally-infected macaques; a total of 128 samples were detected compared to 125 with the indirect fluorescent antibody test (IFA), additionally, 83 (89...
May 9, 2018: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/29738078/tick-borne-disease-risk-in-a-forest-food-web
#13
Richard S Ostfeld, Taal Levi, Felicia Keesing, Kelly Oggenfuss, Charles D Canham
Changes to the community ecology of hosts for zoonotic pathogens, particularly rodents, are likely to influence the emergence and prevalence of zoonotic diseases worldwide. However, the complex interactions between abiotic factors, pathogens, vectors, hosts, and both food resources and predators of hosts are difficult to disentangle. Here we (1) use 19 years of data from six large field plots in southeastern New York to compare the effects of hypothesized drivers of interannual variation in Lyme disease risk, including the abundance of acorns, rodents, and deer, as well as a series of climate variables; and (2) employ landscape epidemiology to explore how variation in predator community structure and forest cover influences spatial variation in the infection prevalence of ticks for the Lyme disease bacterium, Borrelia burgdorferi, and two other important tick-borne pathogens, Anaplasma phagocytophilum and Babesia microti...
May 8, 2018: Ecology
https://www.readbyqxmd.com/read/29730989/identification-of-tick-borne-pathogen-diversity-by-metagenomic-analysis-in-haemaphysalis-longicornis-from-xinyang-china
#14
Lu Zhuang, Juan Du, Xiao-Ming Cui, Hao Li, Fang Tang, Pan-He Zhang, Jian-Gong Hu, Yi-Gang Tong, Zhi-Chun Feng, Wei Liu
BACKGROUND: A wide variety of pathogens could be maintained and transmitted by Haemaphysalis longicornis. The aim of this study is to systematically examine the variety of pathogens carried by Haemaphysalis longicornis, an importnatn vector, in tick-borne diseases epidemic area, and to estimate the risk of human infection imposed by tick bites. METHODS: Adult questing ticks were collected in Xinyang, central China. Genomic DNA and RNA were extracted from 144 H. longicornis ticks individually, and sequenced respectively as the templates for high-throughput sequencing...
May 7, 2018: Infectious Diseases of Poverty
https://www.readbyqxmd.com/read/29730263/the-effects-of-nitidine-chloride-and-camptothecin-on-the-growth-of-babesia-and-theileria-parasites
#15
Dickson Stuart Tayebwa, Bumduuren Tuvshintulga, Azirwan Guswanto, Arifin Budiman Nugraha, Gaber El-Saber Batiha, Sambuu Gantuya, Mohamed Abdo Rizk, Patrick Vudriko, Thillaiampalam Sivakumar, Naoaki Yokoyama, Ikuo Igarashi
The treatment of bovine and equine piroplasmosis is limited to diminazene aceturate (DA) and imidocarb dipropionate. To address this challenge, we need to explore novel drug compounds and targets. Topoisomerases are potential drug targets because they play a vital role in solving topological errors of DNA strands during replication. This study documented the effectiveness of topoisomerase inhibitors, nitidine chloride (NC) and camptothecin (Cpt), on the growth of Babesia and Theileria parasites. The half maximal inhibitory concentrations (IC50 s) against B...
April 27, 2018: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/29728802/qpcr-estimates-of-babesia-bovis-and-babesia-bigemina-infection-levels-in-beef-cattle-and-rhipicephalus-microplus-larvae
#16
Rodrigo Giglioti, Henrique Nunes de Oliveira, Cintia Hiromi Okino, Márcia Cristina de Sena Oliveira
Babesia spp. are tick-transmitted intraerythrocytic apicomplexan parasites that infect wild and domestic animals. Babesia bovis and B. bigemina are endemic and responsible for enormous economic losses to the livestock industry in most of the Brazilian territory, wherein the tick Rhipicephalus microplus is the unique vector. Better understanding of epidemiology and parasite-host interactions may improve the tools for disease control and genetic management for selection of resistant animals. This study aimed to detect, quantify and measure the correlation between B...
May 4, 2018: Experimental & Applied Acarology
https://www.readbyqxmd.com/read/29728129/transplacental-transmission-of-tick-borne-babesia-microti-in-its-natural-host-peromyscus-leucopus
#17
Danielle M Tufts, Maria A Diuk-Wasser
BACKGROUND: Babesia microti is an emerging tick-borne pathogen and the causative agent of human babesiosis. Mathematical modeling of the reproductive rate of B. microti indicates that it cannot persist in nature by horizontal tick-host transmission alone. We hypothesized that transplacental transmission in the reservoir population contributes to B. microti persistence and emergence in North American rodent populations. METHODS: Peromyscus leucopus were collected from Connecticut and Block Island, Rhode Island and analyzed using a highly specific quantitative PCR (qPCR) assay for infection with B...
May 4, 2018: Parasites & Vectors
https://www.readbyqxmd.com/read/29724619/mitigated-clinical-disease-in-water-buffaloes-experimentally-infected-with-babesia-bovis
#18
Daniel Benitez, Maria Mesplet, Ignacio Echaide, Susana Torioni de Echaide, Leonhard Schnittger, Monica Florin-Christensen
Water buffaloes (Bubalus bubalis) are raised in tropical and subtropical regions of the world, and act as hosts of Babesia bovis parasites and the tick vector Rhipicephalus microplus. As no clinical cases of B. bovis-infection have been reported, we hypothesized that, unlike bovines, water buffaloes respond asymptomatically to an acute infection. To test this hypothesis, we inoculated two groups of 24-month-old Mediterranean breed water buffaloes with 108 erythrocytes infected with two Argentine B. bovis isolates: BboM2P (n = 5) or BboS2P (n = 5)...
April 20, 2018: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/29717573/a-four-year-epidemiological-and-chemotherapy-survey-of-babesiosis-and-theileriosis-and-tick-vectors-in-sheep-cattle-and-goats-in-dehgolan-iran
#19
Seyed Sajjad Hasheminasab, Parwiz Moradi, Ian Wright
Babesia and Theileria are two protozoa belonging to the phylum Apicomplexa, which result in babesiosis and theileriosis in different hosts, cause considerable problems in domestic animals and as a consequence economic losses. These two diseases are transmitted by ticks. This survey was carried out due to the lack of studies and information regarding tick vectors and Theileria and Babesia species in the Dehgolan area of Iran, which is a center of agriculture and animal holding industry. This study was conducted during a four-year period, between 2012 and 2016...
2018: Annals of Parasitology
https://www.readbyqxmd.com/read/29701057/transovarial-persistence-of-babesia-ovata-dna-in-a-hard-tick-haemaphysalis-longicornis-in-a-semi-artificial-mouse-skin-membrane-feeding-system
#20
Rika Umemiya-Shirafuji, Takeshi Hatta, Kazuhiro Okubo, Moeko Sato, Hiroki Maeda, Aiko Kume, Naoaki Yokoyama, Ikuo Igarashi, Naotoshi Tsuji, Kozo Fujisaki, Noboru Inoue, Hiroshi Suzuki
No abstract text is available yet for this article.
June 26, 2018: Acta Parasitologica
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