A novel approach to imaging engorged ticks: Micro-CT scanning of Ixodes ricinus fed on blood enriched with gold nanoparticles

Publication date: Available online 28 September 2020Source: Ticks and Tick-borne DiseasesAuthor(s): Jaroslav Ondruš, František Hubatka, Pavel Kulich, Nikola Odehnalová, Vratislav Harabiš, Branislav Hesko, Oldřich Sychra, Pavel Široký, Jaroslav Turánek, Adam Novobilský
Source: Ticks and Tick borne Diseases - Category: Zoology Source Type: research

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The objective of our preliminary proof-of-concept study was to evaluate the use of SEM-EDS for the analysis of tick exoskeleton elementome to gain insight into the tick geographic and host origin. For this preliminary analysis we used 10 samples of engorged ticks (larvae and nymphs of six species from three genera) collected from various resident hosts and locations. The elementome of the tick exoskeleton was characterized in dorsal and ventral parts with three scans on each part using an EDS 80 mm2 detector at 15 kV in a field emission scanning electron microscope. We used principal component analysis (PCA) (varimax rotat...
Source: Frontiers in Physiology - Category: Physiology Source Type: research
by Jordan J. Clark, Janice Gilray, Richard J. Orton, Margaret Baird, Gavin Wilkie, Ana da Silva Filipe, Nicholas Johnson, Colin J. McInnes, Alain Kohl, Roman Biek The emergence and spread of tick-borne arboviruses pose an increased challenge to human and animal health. In Europe this is demonstrated by the increasingly wide distribution of tick-borne encephalitis virus (TBEV,Flavivirus,Flaviviridae), which has recently been found in the United Kingdom (UK). However, much less is known about other tick-borne flaviviruses (TBFV), such as the closely related louping ill virus (LIV), an animal pathogen which is endemic to the...
Source: PLoS Neglected Tropical Diseases - Category: Tropical Medicine Authors: Source Type: research
Tick-borne encephalitis (TBE) is a zoonotic neurological disease caused by tick-borne encephalitis virus (TBEV), a flavivirus endemic in parts of Europe and Asia. Seroconversion without signs of clinical disea...
Source: Acta Veterinaria Scandinavica - Category: Veterinary Research Authors: Tags: Case report Source Type: research
IJERPH, Vol. 17, Pages 5105: Spatio-Temporal Dynamics of Tick-Borne Diseases in North-Central Wisconsin from 2000–2016 International Journal of Environmental Research and Public Health doi: 10.3390/ijerph17145105 Authors: Austin Rau Claudia Munoz-Zanzi Anna M. Schotthoefer Jonathan D. Oliver Jesse D. Berman Lyme disease is a well-recognized public health problem in the USA, however, other tick-borne diseases also have major public health impacts. Yet, limited research has evaluated changes in the spatial and temporal patterns of non-Lyme tick-borne diseases within endemic regions. Using laboratory dat...
Source: International Journal of Environmental Research and Public Health - Category: Environmental Health Authors: Tags: Article Source Type: research
This study was conducted to determine how these cycles could be influenced by climate change. Epidemiological data, spanning from the 1970s to the present, and originating from six regions/countries bridging Scandinavia and the Mediterranean, represented a temporal/latitudinal gradient. Spectral analysis of time series was used to determine variation in the cycles’ length/amplitude with respect to these gradients. The analysis showed that—whereas the lengths of the shorter cycles do not vary substantially—cycles in the decadal band tend to be longer southwards. When comparing the disease&r...
Source: International Journal of Environmental Research and Public Health - Category: Environmental Health Authors: Tags: Article Source Type: research
Discussion Lyme disease (LD) is caused by several genospecies of Borrelia burgdorferi senu lato that are transmitted by ticks of the Ixodes ricinus complex. In the U.S. and Europe it is the most common vector-borne disease. It is named for Lyme, Connecticut in the 1970s when it was “discovered,” but there are reports of LD-type disease in Europe since 1883. There are 18 distinct genospecies with B. afzelii, B. garinii and B. burgdorferi sensu stricto being the 3 most common ones causing human infection. There are many species of Ixodes ticks but only 4 commonly bite humans. Ixodes ricinus mainly in Europe, I, p...
Source: PediatricEducation.org - Category: Pediatrics Authors: Tags: Uncategorized Source Type: news
The objective of this work was to evaluate the effect of thymol on the reproductive biology of engorged females of Rhipicephalus sanguineus sensu lato and the morphological changes caused in the cells of the tubular and accessory glands of Gené’s organ. The females were exposed to thymol by immersion. Seven groups were established: group I (distilled water), group II (30% ethanol), group III (thymol 1.25 mg/mL), group IV (thymol 2.5 mg/mL), group V (thymol 5.0 mg/mL), group VI (thymol 10.0 mg/mL), and group VII (thymol 20.0 mg/mL), with 20 replicates for each treatment. The t...
Source: Ticks and Tick borne Diseases - Category: Zoology Source Type: research
Publication date: Available online 23 September 2019Source: Ticks and Tick-borne DiseasesAuthor(s): Goudarz Molaei, Eliza AH Little, Kirby C. Stafford, Holly GaffAbstractCases of morphological anomalies in the blacklegged tick, Ixodes scapularis (Acari: Ixodidae), have recently been reported from the Northeastern and upper Midwestern United States, potentially complicating identification of this important vector of human disease-causing pathogens. We hereby report a case of a morphological anomaly in I. scapularis, biting a human host residing in Norwich, Connecticut. Using a dichotomous morphological key, high-resolution ...
Source: Ticks and Tick borne Diseases - Category: Zoology Source Type: research
ConclusionsOur findings indicated thatA.phagocytophilum infection was prevalent but unrecognized in Taiwan.
Source: PLoS Neglected Tropical Diseases - Category: Tropical Medicine Authors: Source Type: research
Lyme disease is a tick-borne disease of increasing global importance. There is scant information on Lyme disease patient demographics in England and Wales, and how they interact with the National Health Servic...
Source: BMC Public Health - Category: Consumer Health News Authors: Tags: Research article Source Type: research
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