Search results for "tick"
showing 10 items of 166 documents
18S rRNA gene sequences and phylogenetic relationships of European hard-tick species (Acari: Ixodidae)
1998
The complete 18S rRNA gene sequences of the following six European hard-tick species were obtained by direct PCR cycle sequencing and silver-staining methods: Rhipicephalus pusillus, Boophilus annulatus, Dermacentor marginatus, Hyalomma lusitanicum, Haemaphysalis punctata, and Ixodes ricinus. Differences observed in the sequence alignment of these six species together with the 18S rRNA gene sequences of 13 other hard-tick species demonstrate that this gene is a good marker for supraspecific differentiation as well as genus grouping among hard ticks. Phylogenetic analyses strongly support that Hyalomma species share a common ancestor with Rhipicephalinae and, consequently, Hyalomminae should…
Untersuchungen zur Bedeutung der Frühsommer-Meningoenzephalitis in Rheinland-Pfalz
2002
Within the scope of a prospective clinical study during 2001 in Rhineland-Palatinate specimen from sera and cerebrospinal fluids of 163 patients with suspected meningitis were controlled in an enzyme immunoassay concerning a TBE infection. Questionable results were checked via a neutralisation test. In no case such an infection was confirmed. No virus specific nucleic acids could be detected in 998 nymphs and adults of Ixodes ricinus in an additional investigation in 2000. Therefore Rhineland-Palatinate has to be considered as a region with low virus prevalence. A general recommendation for vaccination is not necessary.
Horizontal competition in multilevel governmental settings
2013
28 pages; Governments situated on the same level of a multi-level governmental system compete with each other as well as with governments placed higher or lower. This paper is concerned with horizontal competition only. It discusses both competition based on the mobility of agents and competition based on comparisons of performance across jurisdictions - i.e., yardstick competition. With regard to the first kind, the focus is on the capacity of governments and voters to decide policies in spite of the mobility of agents. Some attention is also given to non-standard mechanisms in which mobility is manipulated so as to change the structure of the electorate. The paper considers two forms of h…
How significant is yardstick competition among governments? Three reasons to dig deeper
2013
22 pages; The significance of yardstick competition among governments is now confirmed with regard to fiscal variables. This is an important result but the significance of the mechanism must also be sought in a context broader than that of fiscal federalism and without limitation to relations and processes fully observable. Three points are made. Even in the case of governments trying to mimic each other over a single variable, additional variables are involved in an important way. Yardstick competition can be latent without being ineffective. Its major effect, then, is to set bounds to the choices that office-holders could think of making. Finally, the mechanism is a hidden albeit essentia…
Integrācijas platforma darba uzdevumu pārvaldības sistēmām
2019
Kvalifikācijas darba ietvaros izstrādātā sistēma “Integrācijas sistēma darba uzdevumu pārvaldes sistēmām” ir izstrādāta ar domu atvieglot sadarbību starp klientu un izstrādātāju, apvienojot abus šajā integrācijas platformā. Sistēma ir tīmekļa bāzēta lietojumprogrammatūra, kas dod iespēju no saņemtajiem e-pastiem veidot jaunus darba uzdevumus izvēlētajā uzdevumu pārvaldības sistēmā (JIRA), kā arī sekot līdzi šo uzdevumu izpildei, līdz tie tiek izpildīti, izsūtot e-pastu darba uzdevuma autoram par uzdevuma izpildes rezultātu. Sistēma tika realizēta izmantojot Laravel 5.7. tīmekļa ietvaru, kas balstās PHP programmēšanas valodu. Datu bāze imeplementācijai izmantots MySQL datu bāzes pārvaldības …
Evaluating polymicrobial immune responses in patients suffering from tick-borne diseases
2018
Abstract There is insufficient evidence to support screening of various tick-borne diseases (TBD) related microbes alongside Borrelia in patients suffering from TBD. To evaluate the involvement of multiple microbial immune responses in patients experiencing TBD we utilized enzyme-linked immunosorbent assay. Four hundred and thirty-two human serum samples organized into seven categories followed Centers for Disease Control and Prevention two-tier Lyme disease (LD) diagnosis guidelines and Infectious Disease Society of America guidelines for post-treatment Lyme disease syndrome. All patient categories were tested for their immunoglobulin M (IgM) and G (IgG) responses against 20 microbes assoc…
Do bank voles (Myodes glareolus) trapped in live and lethal traps show differences in tick burden?
2020
In studies assessing tick abundance, the use of live traps to capture and euthanize rodent hosts is a commonly used method to determine their burden. However, captive animals can experience debilitating or fatal capture stress as a result prior to collection. An alternative method is the use of lethal traps, but this can potentially lead to tick drop-off between the time of capture and collection. In this study, in order to determine whether subjecting animals to capture stress is inevitable, we tested the difference in sheep tick (Ixodes ricinus) larval burdens between bank voles (Myodes glareolus) captured alive and euthanized, and lethally trapped bank voles. During 2017 and 2018, 1318 b…
High-elevational occurrence of two tick species, Ixodes ricinus and I. trianguliceps, at their northern distribution range
2021
Abstract Background During the last decades a northward and upward range shift has been observed among many organisms across different taxa. In the northern hemisphere, ticks have been observed to have increased their latitudinal and altitudinal range limit. However, the elevational expansion at its northern distribution range remains largely unstudied. In this study we investigated the altitudinal distribution of the exophilic Ixodes ricinus and endophilic I. trianguliceps on two mountain slopes in Norway by assessing larval infestation rates on bank voles (Myodes glareolus). Methods During 2017 and 2018, 1325 bank voles were captured during the spring, summer and autumn at ten trapping st…
Isolation on "VERO" cells of a spotted fever group rickettsia "Mortilli strain" from Rhipicephalus sanguineus.
1986
The isolation of a Spotted Fever Group (SFG) Rickettsia « Mortilli strain » from brown dog ticks Rhipicephalu.s sanguineus removed from dogs associated with a confirmed case of Boutonneuse Fever (BF) in a site of a Western Sicily is reported. The need is stressed for isolation and adaption on cell cultures of SFG rickettsial strains for analysis of antigenic structure employing modern methodology.
Demonstration of spotted fever group rickettsiae in the tache noire of a healthy person in Sicily.
1984
A human case of rickettsial infection occurred in Sicily following tick bite. The patient did not have fever, the typical nodular rash, or other symptoms of illness other than development of a tache noire containing spotted fever group rickettsiae, which were demonstrated by immunofluorescence. A high titer of antibodies of the IgG class suggests that the patient may have had previous exposure to Rickettsia conorii or a related spotted fever group rickettsia. An anamnestic response may be hypothesized to have conferred partial immunity, with resulting containment of rickettsiae at the site of inoculation.