Natural hybridization between Ixodes ricinus and Ixodes persulcatus ticks evidenced by molecular genetics methods

2016 ◽  
Vol 7 (1) ◽  
pp. 113-118 ◽  
Author(s):  
S.Y. Kovalev ◽  
I.V. Golovljova ◽  
T.A. Mukhacheva
2020 ◽  
Vol 20 (12) ◽  
pp. 921-923
Author(s):  
Toshiyuki Masuzawa ◽  
Keiko Sakakibara ◽  
Kazushi Suzuki ◽  
Hiroki Sato ◽  
Shima Yasuda

2021 ◽  
Vol 63 (1) ◽  
pp. 38-42
Author(s):  
Inna I. Torianyk

Aim: The aim of the study is to improve the complex diagnostic algorithm of babesiosis by etiopathogenetic assessment of tick skin lesions in vacationers of suburban resorts and tourists of Ukraine. Material and Methods: In order to objectify the etiopathogenetic assessment of tick skin lesions in vacationers of suburban resorts and tourists of Ukraine, animals affected by attacks of active stages of Ixodes, to determine their role as a component in a comprehensive diagnostic algorithm of babesiosis, we used a set of epidemic, epizootological, clinical and diagnostic measures. Skin lesions were considered acaroidal only in cases when ticks from the superfamily Ixodoidea of the family Ixodidea of the species Ixodes ricinus and Ixodes persulcatus (n=34), Dermacentor marginatus and Dermacentor pictus (n=128) were detected on it or on the clothes of the bitten person. Ticks of the species Ixodes ricinus, Ixodes persulcatus, Dermacentor marginatus and Dermacentor pictus were studied and photographed on an Olympus BX-41 microscope (Japan) using a digital camera. The surveyed 64 people of both sexes, aged 17 to 68, belonged to different categories of vacationers or tourists (organized, semi-organized, «savages»). The morphological material (skin with underlying soft tissues) was collected in cases of attacks of Ixodes on pets (dogs), accompanying the owners on vacation, when it was possible. Microspecimens stained with hematoxylin and eosin, picrofuxin according to van Gizon, according to Mallory were studied using an Olympus BX-41 microscope (Japan) with subsequent processing with the Olympus DP-soft version 3.1 software. Results: Climatotherapy is a popular treatment and prevention measure in the coordinate system «doctor-patient». This treatment method is characterized by both positive health effects and negative consequences, among which are the development of such dangerous parasitic disease as babesiosis. Etiopathogenetic assessment of tick skin lesions in vacationers of suburban resorts and tourists of Ukraine is an important component of a comprehensive diagnostic algorithm for babesiosis. Its objectification is based on the effective application of the data informative potential on the cycle and period of development of one generation of carriers (imago), the specifics of active stages (differentiation into three-host mites), habitat characteristics (shrubs, deciduous trees), seasonality (April-June, August-September), climatic zonation (temperate climate of the forest-steppe), their ability to inoculate babesiosis pathogens into the body of warm-blooded vertebrates. Macroscopic and microscopic features of the skin with underlying soft tissues at the sites of fixation and feeding of mites in susceptible to pathogens babesiosis humans and animals depend on the duration of this damaging factor exposure. Conclusions: Etiopathogenetic assessment of tick skin lesions in vacationers of suburban resorts and tourists of Ukraine is of great importance in the diagnosis of babesiosis.


2013 ◽  
Vol 4 (1-2) ◽  
pp. 83-88 ◽  
Author(s):  
Inese Berzina ◽  
Valentina Capligina ◽  
Antra Bormane ◽  
Agne Pavulina ◽  
Viesturs Baumanis ◽  
...  

2000 ◽  
Vol 47 (2) ◽  
pp. 147-153 ◽  
Author(s):  
Andrey N. Alekseev ◽  
Per M. Jensen ◽  
Helen V. Dubinina ◽  
Lioubov A. Smirnova ◽  
Natalia A. Makrouchina ◽  
...  

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Anna Bajer ◽  
Dorota Dwużnik-Szarek

Abstract Background Babesia spp. are protozoan parasites of great medical and veterinary importance, especially in the northern Hemisphere. Ticks are known vectors of Babesia spp., although some Babesia-tick interactions have not been fully elucidated. Methods The present review was performed to investigate the specificity of Babesia-tick species interactions that have been identified using molecular techniques in studies conducted in the last 20 years under field conditions. We aimed to indicate the main vectors of important Babesia species based on published research papers (n = 129) and molecular data derived from the GenBank database. Results Repeated observations of certain Babesia species in specific species and genera of ticks in numerous independent studies, carried out in different areas and years, have been considered epidemiological evidence of established Babesia-tick interactions. The best studied species of ticks are Ixodes ricinus, Dermacentor reticulatus and Ixodes scapularis (103 reports, i.e. 80% of total reports). Eco-epidemiological studies have confirmed a specific relationship between Babesia microti and Ixodes ricinus, Ixodes persulcatus, and Ixodes scapularis and also between Babesia canis and D. reticulatus. Additionally, four Babesia species (and one genotype), which have different deer species as reservoir hosts, displayed specificity to the I. ricinus complex. Eco-epidemiological studies do not support interactions between a high number of Babesia spp. and I. ricinus or D. reticulatus. Interestingly, pioneering studies on other species and genera of ticks have revealed the existence of likely new Babesia species, which need more scientific attention. Finally, we discuss the detection of Babesia spp. in feeding ticks and critically evaluate the data on the role of the latter as vectors. Conclusions Epidemiological data have confirmed the specificity of certain Babesia-tick vector interactions. The massive amount of data that has been thus far collected for the most common tick species needs to be complemented by more intensive studies on Babesia infections in underrepresented tick species. Graphical abstract


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