keyword
MENU ▼
Read by QxMD icon Read
search

Ornithodoros

keyword
https://www.readbyqxmd.com/read/28196664/new-records-of-ornithodoros-puertoricensis-fox-1947-ixodida-argasidae-parasitizing-humans-in-rural-and-urban-dwellings-panama
#1
Sergio E Bermúdez, Eduardo Castillo, Tyler D Pohlenz, Alexander Kneubehl, Aparna Krishnavajhala, Lillian Domínguez, Antonio Suárez, Job E López
The presence of ticks inside human constructions was evaluated in two localities from Colon province (Charco La Piedra and Espinar) and one from Panama province (Ancon, City of Panama). In two of houses, eight people from Charco La Piedra and one from Ancón reported "insect bites," which produced blisters for several weeks. The investigation resulted in the collection of argasid ticks, which were identified by morphology and sequencing the 16s ribosomal RNA gene, and later evaluated for the presence of relapsing fever Borrelia DNA...
February 5, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28154563/host-immune-evasion-by-lyme-and-relapsing-fever-borreliae-findings-to-lead-future-studies-for-borrelia-miyamotoi
#2
REVIEW
Brandee L Stone, Catherine A Brissette
The emerging pathogen, Borrelia miyamotoi, is a relapsing fever spirochete vectored by the same species of Ixodes ticks that carry the causative agents of Lyme disease in the US, Europe, and Asia. Symptoms caused by infection with B. miyamotoi are similar to a relapsing fever infection. However, B. miyamotoi has adapted to different vectors and reservoirs, which could result in unique physiology, including immune evasion mechanisms. Lyme Borrelia utilize a combination of Ixodes-produced inhibitors and native proteins [i...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28150885/blood-feeding-of-ornithodoros-turicata-larvae-using-an-artificial-membrane-system
#3
H J Kim, S Filatov, J E Lopez, A A Pérez DE León, P D Teel
An artificial membrane system was adapted to feed Ornithodoros turicata (Ixodida: Argasidae) larvae from a laboratory colony using defibrinated swine blood. Aspects related to larval feeding and moulting to the first nymphal instar were evaluated. A total of 55.6% of all larvae exposed to the artificial membrane in two experimental groups fed to repletion and 98.0% of all fed larvae moulted. Mortality rates of first instar nymphs differed significantly depending on the sorting tools used to handle engorged larvae (χ(2)  = 35...
February 2, 2017: Medical and Veterinary Entomology
https://www.readbyqxmd.com/read/28064411/the-tick-acari-ixodidae-fauna-of-herald-s-beacon-islet-australia
#4
Mackenzie L Kwak, Kate Mintram
A rare opportunity to travel to Herald's Beacon Islet with permission from the Australian government to collect ticks allowed for a survey of the tick fauna of the island to be undertaken for the first time. The avian fauna of the island, which serve as hosts, was also recorded and includes one new species record for the island. The seabird soft tick Ornithodoros capensis Neumann and the seabird hard tick Amblyomma loculosum Neumann were found to be present on the island. Images of the ticks present on the island are presented along with morphological characters for their identification...
January 2017: Experimental & Applied Acarology
https://www.readbyqxmd.com/read/28040777/genome-report-identification-and-validation-of-antigenic-proteins-from-pajaroellobacter-abortibovis-using-de-novo-genome-sequence-assembly-and-reverse-vaccinology
#5
Bryan T Welly, Michael R Miller, Jeffrey L Stott, Myra T Blanchard, Alma D Islas-Trejo, Sean M O Rourke, Amy E Young, Juan F Medrano, Alison L Van Eenennaam
Epizootic bovine abortion (EBA), or "foothill abortion", is the leading cause of beef cattle abortion in California and has also been reported in Nevada and Oregon. In the 1970's, the soft-shelled tick Ornithodoros coriaceus, or "pajaroello tick", was confirmed as the disease-transmitting vector. In 2005, a novel Deltaproteobacterium was discovered as the etiologic agent of EBA (aoEBA), recently named Pajaroellobacter abortibovis This organism cannot be grown in culture using traditional microbiological techniques; it can only be grown in experimentally-infected severe combined immunodeficient (SCID) mice...
December 30, 2016: G3: Genes—Genomes—Genetics
https://www.readbyqxmd.com/read/27986725/imaging-of-borrelia-turicatae-producing-the-green-fluorescent-protein-reveals-persistent-colonization-of-the-ornithodoros-turicata-midgut-and-salivary-glands-from-nymphal-acquisition-through-transmission
#6
Aparna Krishnavajhala, Hannah K Wilder, William K Boyle, Ashish Damania, Justin A Thornton, Adalberto A Pérez de León, Pete D Teel, Job E Lopez
Relapsing fever (RF) spirochetes colonize and are transmitted to mammals primarily by Ornithodoros ticks, and little is known regarding the pathogen's life cycle in the vector. To further understand vector colonization and transmission of RF spirochetes, Borrelia turicatae expressing a green fluorescent protein (GFP) marker (B. turicatae-gfp) was generated. The transformants were evaluated during the tick-mammal infectious cycle, from the third nymphal instar to adult stage. B. turicatae-gfp remained viable for at least 18 months in starved fourth-stage nymphal ticks, and the studies indicated that spirochete populations persistently colonized the tick midgut and salivary glands...
March 1, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/27982297/ticks-parasitizing-bats-mammalia-chiroptera-in-the-caatinga-biome-brazil
#7
Hermes Ribeiro Luz, Sebastián Muñoz-Leal, Juliana Cardoso de Almeida, João Luiz Horacio Faccini, Marcelo Bahia Labruna
In this paper, the authors report ticks parasitizing bats from the Serra das Almas Natural Reserve (RPPN) located in the municipality of Crateús, state of Ceará, in the semiarid Caatinga biome of northeastern Brazil. The study was carried out during nine nights in the dry season (July 2012) and 10 nights in the rainy season (February 2013). Only bats of the Phyllostomidae and Mormoopidae families were parasitized by ticks. The species Artibeus planirostris and Carolia perspicillata were the most parasitized...
October 2016: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
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
#8
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
https://www.readbyqxmd.com/read/27729267/linking-morphometric-and-genetic-divergence-with-host-use-in-the-tick-complex-ornithodoros-capensis-sensu-lato
#9
Marlène Dupraz, Céline Toty, Valérie Noël, Agustin Estrada-Peňa, Jacob González-Solís, Thierry Boulinier, Jean-Pierre Dujardin, Karen D McCoy
Host specific adaptations in parasites can lead to the divergence of conspecific populations. However, this divergence can be difficult to measure because morphological changes may not be expressed or because obvious changes may simply reflect phenotypic plasticity. Combining both genetic and phenotypic information can enable a better understanding of the divergence process and help identify the underlying selective forces, particularly in closely-related species groups. Here, we link genetic and morphometric data to understand divergence patterns within the Ornithodoros (Carios) capensis complex, a group of soft ticks (Argasidae) exploiting colonial seabirds across the globe...
December 2016: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/27639933/rickettsia-lusitaniae-associated-with-ornithodoros-yumatensis-acari-argasidae-from-two-caves-in-yucatan-mexico
#10
Sokani Sánchez-Montes, Carmen Guzmán-Cornejo, Yecenia Martínez-Nájera, Ingeborg Becker, José M Venzal, Marcelo B Labruna
The genus Rickettsia includes obligate intracellular bacteria transmitted by several hematophagous arthropods such as ticks, fleas and sucking lice. In particular hard ticks (Ixodidae) have been cited as the main vectors of pathogenic rickettsiae in Mexico. However, there have been only two records of a single Rickettsia species associated with Mexican soft ticks (Argasidae). In this study, we searched for rickettsial DNA in argasid ticks (13 adults and eight nymphs of Ornithodoros yumatensis) from two bat caves in the state of Yucatan, Mexico...
October 2016: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/27639932/new-rickettsia-species-in-soft-ticks-ornithodoros-hasei-collected-from-bats-in-french-guiana
#11
Djamel Tahir, Cristina Socolovschi, Jean-Lou Marié, Gautier Ganay, Jean-Michel Berenger, Jean-Michel Bompar, Denis Blanchet, Marie Cheuret, Oleg Mediannikov, Didier Raoult, Bernard Davoust, Philippe Parola
In French Guiana, located on the northeastern coast of South America, bats of different species are very numerous. The infection of bats and their ticks with zoonotic bacteria, especially Rickettsia species, is so far unknown. In order to improve knowledge of these zoonotic pathogens in this French overseas department, the presence and diversity of tick-borne bacteria was investigated with molecular tools in bat ticks. In the beginning of 2013, 32 bats were caught in Saint-Jean-du-Maroni, an area close to the coast of French Guiana, and the ticks of these animals were collected...
October 2016: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/27625415/physiological-characterization-of-the-hematophagy-of-ornithodoros-rostratus-acari-argasidae-on-live-hosts
#12
Gabriel Cerqueira Alves Costa, Adriana Coelho Soares, Marcos Horácio Pereira, Nelder Figueiredo Gontijo, Maurício Roberto Viana Sant'Anna, Ricardo Nascimento Araujo
Ornithodoros rostratus is an argasid tick and its importance is based on its hematophagy and the resulting transmission of pathogens such as Rickettsia rickettsii and Coxiella burnetii to its vertebrate hosts. In the face of a lack of physiological studies related to hematophagy in argasid ticks, this paper aims to identify and characterize the events that occur throughout the feeding by O. rostratus on live hosts. Electrical signals and alterations on the feeding site were monitored using intravital microscopy and electromyography...
November 15, 2016: Journal of Experimental Biology
https://www.readbyqxmd.com/read/27598771/pasylated-coversin-a-c5-specific-complement-inhibitor-with-extended-pharmacokinetics-shows-enhanced-anti-hemolytic-activity-in-vitro
#13
Nadine Kuhn, Christoph Q Schmidt, Martin Schlapschy, Arne Skerra
The Ornithodoros moubata Complement Inhibitor (OmCI) binds complement component 5 (C5) with high affinity and, thus, selectively prevents proteolytic activation of the terminal lytic complement pathway. A recombinant version of OmCI (also known as Coversin and rEV576) has proven efficacious in several animal models of complement-mediated diseases and successfully completed a phase Ia clinical trial. Coversin is a small 17 kDa lipocalin protein which has a very short plasma half-life if not bound to C5; therefore, the drug requires frequent dosing...
September 26, 2016: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/27523949/tsgp4-from-ornithodoros-moubata-molecular-cloning-phylogenetic-analysis-and-vaccine-efficacy-of-a-new-member-of-the-lipocalin-clade-of-cysteinyl-leukotriene-scavengers
#14
R Manzano-Román, V Díaz-Martín, A Oleaga, P Obolo-Mvoulouga, R Pérez-Sánchez
Recently obtained evidence indicated that an orthologue of the O. savignyi TSGP4 salivary lipocalin was present in the saliva of O. moubata. TSGP4 is known to act as a cysteinyl leukotrienes scavenger helping in the prevention of inflammation and oedema at the tick bite site. Since this function seems to be crucial for successful tick feeding, the novel O. moubata TSGP4 turned into a potential vaccine target. The purposes of the current work were: (i) to clone and characterize the O. moubata TSGP4 and, (ii) to produce it as recombinant to evaluate its protective efficacy as vaccine antigen...
August 30, 2016: Veterinary Parasitology
https://www.readbyqxmd.com/read/27521265/molecular-screening-for-midichloria-in-hard-and-soft-ticks-reveals-variable-prevalence-levels-and-bacterial-loads-in-different-tick-species
#15
Alessandra Cafiso, Chiara Bazzocchi, Leone De Marco, Maxwell N Opara, Davide Sassera, Olivier Plantard
Candidatus Midichloria mitochondrii, symbiont of the sheep tick Ixodes ricinus, was the first described member of the family Candidatus Midichloriaceae, order Rickettsiales. Recent reports are expanding our view of this family, now including numerous bacteria of great biological and medical interest, indicating a widespread distribution with an increasing range of hosts, with ticks being strongly represented. Here we present a molecular screening of 17 tick species, detecting and quantifying bacteria of the family Midichloriaceae in seven of them, including the first report of a representative of this family in a soft tick species (Argasidae), Ornithodoros maritimus...
October 2016: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/27430539/tick-borne-relapsing-fever-outbreak-among-a-high-school-football-team-at-an-outdoor-education-camping-trip-arizona-2014
#16
Jefferson M Jones, Carter R Hranac, Mare Schumacher, Kim Horn, Darlene M Lee, Joel Terriquez, David M Engelthaler, Marie Peoples, Jennifer Corrigan, Adam Replogle, Nina Souders, Kenneth K Komatsu, Nathan C Nieto
During August 2014, five high school students who had attended an outdoor education camp were hospitalized with a febrile illness, prompting further investigation. Ten total cases of tick-borne relapsing fever (TBRF) were identified-six cases confirmed by culture or visualization of spirochetes on blood smear and four probable cases with compatible symptoms (attack rate: 23%). All patients had slept in the campsite's only cabin. Before the camp, a professional pest control company had rodent proofed the cabin, but no acaricides had been applied...
September 7, 2016: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/27353196/tick-borne-relapsing-fever-in-dogs
#17
J Piccione, G J Levine, C A Duff, G M Kuhlman, K D Scott, M D Esteve-Gassent
BACKGROUND: In the United States, Tick-Borne Relapsing Fever (TBRF) in dogs is caused by the spirochete bacteria Borrelia turicatae and Borrelia hermsii, transmitted by Ornithodoros spp. ticks. The hallmark diagnostic feature of this infection is the visualization of numerous spirochetes during standard blood smear examination. Although the course of spirochetemia has not been fully characterized in dogs, in humans infected with TBRF the episodes of spirochetemia and fever are intermittent...
July 2016: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/27305604/evidence-of-bartonella-spp-in-blood-and-ticks-ornithodoros-hasei-of-bats-in-french-guiana
#18
Bernard Davoust, Jean-Lou Marié, Mustapha Dahmani, Jean-Michel Berenger, Jean-Michel Bompar, Denis Blanchet, Marie Cheuret, Didier Raoult, Oleg Mediannikov
We screened blood from 59 bats from French Guiana for Bartonella spp. PCRs were positive for 13.6% and culture was positive in one Noctilio albiventris and one Pteronotus parnellii, as well as in Ornithodoros hasei ticks collected from bats. Two isolated strains represent possible two new species.
August 2016: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/27247068/the-african-swine-fever-control-zone-in-south-africa-and-its-current-relevance
#19
Noluvuyo R Magadla, Wilna Vosloo, Livio Heath, Bruce Gummow
African swine fever (ASF) has been reported in South Africa since the early 20th century. The disease has been controlled and confined to northern South Africa over the past 80 years by means of a well-defined boundary line, with strict control measures and movement restrictions north of this line. In 2012, the first outbreak of ASF outside the ASF control zone since 1996 occurred. The objective of this study was to evaluate the current relevance of the ASF control line as a demarcation line between endemic ASF (north) areas and ASF-free (south) area and to determine whether there was a need to realign its trajectory, given the recent outbreaks of ASF, global climate changes and urban development since the line's inception...
May 23, 2016: Onderstepoort Journal of Veterinary Research
https://www.readbyqxmd.com/read/27180585/ornithodoros-sawaii-ixodida-argasidae-larvae-collected-from-hydrobates-monorhis-on-sogugul-and-gaerin-islands-jeollanam-do-province-republic-of-korea
#20
Heung-Chul Kim, Chang-Yong Choi, Young-Soo Kwon, Seok-Min Yun, Won-Ja Lee, Sung-Tae Chong, Richard G Robbins, Terry A Klein
The 65th Medical Brigade and Public Health Command District-Korea, in collaboration with the Migratory Bird Research Center, National Park Research Institute, conducted migratory bird tick surveillance at Sogugul and Gaerin Islands (small rocky bird nesting sites), Jeollanam-do (Province), Republic of Korea (ROK), on 30 July and 1 August 2009. Breeding seabirds captured by hands in their nesting burrows were banded, identified to species, and carefully examined for ticks during the nesting season. A total of 9 Ornithodoros sawaii larvae were removed from 4 adult Hydrobates monorhis (Swinhoe's storm petrel)...
April 2016: Korean Journal of Parasitology
keyword
keyword
60678
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"