scholarly journals Prevalence of Borrelia burgdorferi sensu lato genetic markers in blood-sucking ticks in suburban park zones in Saint Petersburg

2020 ◽  
Vol 10 (1) ◽  
pp. 175-179
Author(s):  
Yu. A. Panferova ◽  
A. N. Vaganova ◽  
O. A. Freylikhman ◽  
K. A. Tretyakov ◽  
S. G. Medvedev ◽  
...  
Keyword(s):  
Borrelia Burgdorferi ◽  
Viral Infections ◽  
Federal District ◽  
Ixodid Tick ◽  
Ixodid Ticks ◽  
Vector System ◽  
Ixodes Persulcatus ◽  
Northern Coast ◽  
The North ◽  
Blood Sucking

Tick-borne bacterial and viral infections are widespread in middle latitudes of the Northern hemisphere. Natural foci of such infections coincide with geographic areas inhabited by ixodid ticks. Ixodid tick-borne borreliosis is a pressing issue for some territories of Russia, especially for the North-Western Federal District and St. Petersburg megalopolis as well as adjacent areas of the Leningrad District, where people may become infected after tick bite in recreational zones in suburban park areas. Currently, very few publications regarding prevalence of tick-borne pathogens in St. Petersburg area are available. In our study, questing ticks flagged in park zone (northern coast of Finnish Gulf, Kurortny District) were examined with PCR for carriage of pathogenic B. burgdorferi sensu lato complex. In addition, samples positive for Borrelia DNA signal were further genotyped with species-specific primers against rpoBgene fragment. It was found that Ixodes persulcatus dominated in this area. Prevalence of Borrelia burgdorferi s.l. complex comprised 9.33%. Genospecies B. afzelii and less frequently B. garinii were detected. A mixt-infection with two Borel-lia species was detected in one sample. Interestingly, all Borrelia-infected ticks belonged to I. persulcatus suggesting a closer association for certain species in «pathogen-vector» system. Our findings are essential in investigating distribution of ixodid borreliosis foci in St. Petersburg and suburbs, obtaining new data regarding epidemiology, diagnostics, treatment and prevention of this infection. It is noteworthy than prevalence of pathogenic Borrelia spp. vs. tick-borne encephalitis virus in vectors was higher thereby accounting for its higher morbidity. Comparing our data with those published elsewhere by European researchers allows to note that prevalence of pathogenic Borrelia spp. in ticks varies broadly in diverse geographic regions. It is necessary to take into consideration that prevalence of Borrelia markers achieves ~10% in ticks given frequent attendance of park areas near St. Petersburg that point at risk of developing bor-reliosis in recreational zones.

Information about the fauna of ixodid ticks (Acari, Ixodidae) in the north of the Aktobe region

2021 ◽  
pp. 94-107
Author(s):  
Zh.U. Katuova ◽  
Z.Z. Sayakova ◽  
A.Zh. Zhaymakhova ◽  
T.T. Koylybayev ◽  
R.A. Utemisova
Keyword(s):  
Infectious Diseases ◽  
Ixodid Ticks ◽  
Wild Animals ◽  
Infectious Agents ◽  
The North ◽  
Current State ◽  
Blood Sucking ◽  
Natural Foci ◽  
The Many ◽  
Intensive Development

The territory of the Aktobe region is unfavorable for some zoonotic infectious diseases, which are carried by blood-sucking arthropods. Feeding on the blood of obviously sick wild animals in natural foci, bloodsuckers can attack livestock and people and thereby contribute to the transfer of infectious agents to human settlements. Ixodid ticks are one of the many bloodsuckers capable of preserving and transmitting pathogens of especially dangerous infections to susceptible animals and humans. In the conditions of intensive development of transport communications on the territory of the Aktobe region, ixodids, as carriers of infectious agents, may present serious dangers. Despite many years of research, the tick fauna of the Aktobe region has not been completely studied. In 2018-2020, we conducted studies of ixodids in the north of the Aktobe region to clarify the current state of their fauna. Studies of ticks were carried out in inhibited areas of fi ve districts of the region in natural biotopes, with wild and agricultural animals according to the generally accepted method. As a result of studies in the north of the Aktobe region, the habitat of 5 species of ticks belonging to three genera were revealed: Dermacentor, Hyalomma, Rhipicephalus. Key words: fauna, ixodid ticks, vectors, range, Dermacentor, Hyalomma, Rhipicephalus

О находках Rhipicephalus (Boophilus) annulatus (Say, 1821) (Acari, Ixodidae) на западе Атырауской области

2021 ◽  
Vol 3 ◽  
pp. 36-45
Author(s):  
Z.Z. Sayakova ◽  
A.A. Bashmakova ◽  
I.G. Kozulina ◽  
I.B. Mellatova
Keyword(s):  
Rapid Development ◽  
Hydrological Regime ◽  
Ixodid Tick ◽  
Climatic Conditions ◽  
Ixodid Ticks ◽  
Economic Activities ◽  
Blood Sucking ◽  
Natural Foci ◽  
Ixodes Ticks ◽  
Rickettsial Diseases

Blood-sucking ticks are vectors of protozoal, bacterial, viral and rickettsial diseases. The study of ixodes ticks: fauna, ecology, biology is of great importance not only for epidemiology but is also of scientific interest. Changes in natural and climatic conditions, hydrological regime, rapid development of human economic activities lead to the changes in the fauna of invertebrates including ixodid ticks. As they invade new territories ticks may expand their habitats for these dangerous for animals and humans infections. That is why the study of tick fauna, changes in species diversity of ticks and monitoring of their abundance is so important for monitoring of natural foci. The emergence of a new species of ixodid tick Rhipicephalus annulatus, in western Kazakhstan, which began to be registered from 2019 in Kurmangazy district of Atyrau region, bordering the Astrakhan region of the Russian Federation and its re-finding in 2020 is a very important fact to assess the epidemiological danger for humans and animals in this territory.

Ixodid ticks in North — Eastern Uzbekistan: fauna, distribution patterns and ecology

2016 ◽  
Vol 3 (3) ◽  
pp. 291-295
Author(s):  
Умркулова ◽  
S. Umrkulova ◽  
Акрамова ◽  
F. Akramova ◽  
Азимов ◽  
...  
Keyword(s):  
Species Diversity ◽  
Distribution Patterns ◽  
Ixodid Ticks ◽  
Ixodes Persulcatus ◽  
Wild Animals ◽  
The North ◽  
Ecological Flexibility ◽  
North Eastern ◽  
Research Period ◽  
North Eastern Part

Objective of research: To study the species diversity of ticks in the north — eastern part of Uzbekistan: fauna, distribution patterns and ecology. Materials and methods: Research samples were collected with the use of common parasitological methods [2, 3, 4]. Host animals were examined once a decade by collecting parasites from certain groups of farm and wild animals. Results and discussion: 13 species of 6 tick genera discovered during the research period on the territory of the north — eastern Uzbekistan: Ixodes persulcatus, I. redikorzevi, I. crenulatus, Haemaphusalis caucasica, Boophilus calcaratus, Dermacentor pictus, D. daghestanicus, D. pavlovskyi, Rhipicephalis turanicus, H. asiaticum, H. detritum, H. anatolicum, H. plumbeum turanikum. Species B. salcaratus, H. asiaticum are distributed in all survey areas what confirms their high ecological flexibility. The extensity of infection of livestock with ticks is rather high — 51.3 — 52.3%. The infestation of synanthropic and wild animals ranged from 37.0 to 40.0%.

Identification of Coxiella burnetii molecular markers in ticks harboring at forest zones in Saint-Petersburg

2021 ◽  
pp. 15-18
Author(s):  
Yuliya Aleksandrovna Panferova ◽  
Regina Ravilevna Baimova ◽  
Elena Aleksandrovna Syuzyumova ◽  
Valeriya Igorevna Lomonosova ◽  
Gelena Anatolievna Lunina ◽  
...  
Keyword(s):  
Molecular Markers ◽  
Coxiella Burnetii ◽  
Q Fever ◽  
Ixodid Ticks ◽  
Infection Rates ◽  
Saint Petersburg ◽  
Arthropod Vectors ◽  
The North ◽  
Blood Sucking ◽  
North Eurasia

The prevalence of Q fever agent, Coxiella burnetii in blood-sucking ixodid ticks in the forest zones of St-Petersburg was investigated. Molecular markers of pathogen were determined in approximately 5 % of vectors, which could suggest of infection foci subsistence close to megalopolis. Data on Coxiella infection rates of arthropod vectors across the North Eurasia were analyzed.

scholarly journals DIAGNOSIS AND TREATMENT OF TICK-BORNE DISEASES OF PETS

2020 ◽  
pp. 175-183
Author(s):  
V. A. Levytska ◽  
A. B. Mushynskyi
Keyword(s):  
Environmental Changes ◽  
Laboratory Data ◽  
Communicable Diseases ◽  
Ixodid Ticks ◽  
Diagnosis And Treatment ◽  
Effective Control ◽  
Ixodes Persulcatus ◽  
Blood Sucking ◽  
Tick Borne Encephalitis ◽  
Louping Ill

In recent years, there has been an increase in the number of tick-borne diseases around the world, especially borreliosis, rickettsiosis (anaplasmosis, ehrlichiosis), tick-borne encephalitis and others. Climate and environmental changes, migration (movement) of domestic animals lead to changes in the epizootiological situation regarding communicable diseases. The analysis of epizootological, clinical, laboratory data is carried out. The data of scientific researches concerning tick-borne diseases, namely borreliosis, ehrlichiosis, tick-borne encephalitis, louping-ill infection are generalized. In recent years, infectious and invasive animal diseases caused by viruses, bacteria and protozoa transmitted by ticks have become a new challenge in health and veterinary practice. Many such diseases are zoonoses and lead to disability and mortality in humans and animals. Ixodid ticks often attack animals and humans and are widespread throughout Europe, as well as being involved in the transmission of a large number of tick-borne diseases. Currently, one of the biggest threats is the pathogens of the complex Borrelia burgdorferi s. l., which belong to the spirochetes and affect various species of mammals and birds and are transmitted by ticks (Ixodes ricinus, Ixodes hexagonus and Ixodes persulcatus). The disease is of great epidemiological importance for human health. Diagnosis and treatment are insufficiently developed. Ehrlichia spp. are gramnegative, obligate intracellular bacteria from the family Anaplasmataceae. In Europe, Ehrlichia canis is the etiological agent of monocytic ehrlichiosis in dogs. The main host of E. canis is a dog (other dogs can serve as reservoir hosts); vector - Rhipicephalus sanguineus. Tick-borne encephalitis, as well as louping-ill infection, are diseases transmitted by Ixodid ticks and pose a danger to dogs, cats and other animals, as well as people in Europe. At present, all these diseases acquire important epizootological significance, as diagnosis and treatment are complicated. The main measure of disease prevention among dogs is the effective protection of animals from tick attack. Tick-borne diseases are a type of infectious and invasive diseases of animals and humans, the causative agents of which spread from one susceptible subject to another with the participation of blood-sucking arthropods. The most common and clinically significant diseases are: borreliosis, ehrlichiosis, tick-borne encephalitis and other. Systematic studies of zoonotic diseases have not been conducted in Ukraine. Systematic monitoring of pathogens and effective control of communicable diseases of animals are the basis for improving the epidemiological situation among the population.

scholarly journals Occurrence and Genetic Diversity of Kemerovo Virus in Ixodid Tick of Western Siberia

2017 ◽  
Vol 16 (2) ◽  
pp. 75-79
Author(s):  
S. E. Tkachev ◽  
A. Yu. Tikunov ◽  
I. V. Babkin ◽  
N. N. Livanova ◽  
S. G. Livanov ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Western Siberia ◽  
Ixodid Tick ◽  
Ixodid Ticks ◽  
Distribution Area ◽  
Ixodes Persulcatus ◽  
Northeastern Altai ◽  
Ixodes Ticks ◽  
East Kazakhstan ◽  
First Time

Kemerovo virus (KEMV), a member of Reoviridae family, Orbivirus genus, is transmitted by ixodes ticks and can cause the damage of human central nervous system. The occurrence and genetic diversity of KEMV in Western Siberia still remained poorly studied, so, the aim of this work was to investigate the prevalence and genetic variability of KEMV in ixodid ticks from Western Siberia. A total of 1958 Ixodes persulcatus, I. pavlovskyi ticks and their hybrids from Novosibirsk and Omsk provinces, Altai Republic (Russia) and East Kazakhstan province (Kazakhstan) were analyzed for the presence of KEMV and tick-borne encephalitis virus (TBEV) RNA. It was shown that KEMV distribution area in Western Siberia was wider and included Northern and Northeastern Altai in addition to Omsk and Novosibirsk provinces. For the first time this virus was found in Kazakhstan. The occurrence of KEMV was statistically lower than TBEV in most locations in Western Siberia. KEMV was found both in I. persulcatus and I. pavlovskyi ticks and in their hybrids. Notably, KEMV variants found in 2010s genetically differ from those isolated in 1960s. Moreover, the possibility of reassortment for KEMV was demonstrated for the first time.

scholarly journals The efficacy of FOS and Fitoverm drugs against Ixodes ticks

2021 ◽  
Vol 15 (1) ◽  
pp. 85-91
Author(s):  
E. I. Butakov ◽  
L. D. Shamanskaya
Keyword(s):  
Lethal Effect ◽  
Ixodid Tick ◽  
Dermacentor Reticulatus ◽  
Ixodid Ticks ◽  
Biologically Active ◽  
Ixodes Persulcatus ◽  
Field Environment ◽  
Ixodes Ticks ◽  
Working Solution ◽  
Grass Stand

The purpose of the research is studying the efficacy of FOS and Fitoverm drugs against ixodid ticks.Materials and methods. The study objects were ixodid tick species Ixodes persulcatus (Schulze, 1930), Dermacentor reticulatus (Hermann, 1804) and D. marginatus (Schulzer, 1776) in the imago stage. Ticks were collected in the environment of the Altai plains and mountains from vegetation to the flag under the methodology. The efficacy of drug acaricidal activity was assessed according to the methodological guide. In the laboratory, the ticks were placed in a chamber at a temperature of 7 оC. The effect of drugs was assessed by observation every hour for 2-3 days. Live ticks (20 individuals) were contacted with the drug by immersion three times in the working solution in a permeable fabric container. Neostomosan was used as control. Further tests of FOS and Fitoverm were carried out in the field environment. Briz 25% e.c. was used as control. The plots on which the number of Ixodes had previously been recorded was treated using a sprayer on June 1-2 in the morning. The number of live ticks in the plots was counted 1-2 days after the treatment. The biochemical composition of grass stand on various treated grounds was studied according to standard methods. The results were processed statistically.Results and discussion. The Siberian Scientific-Research Institute of Horticulture has developed a series of environmentally friendly drugs based on natural biologically active substances that have shown high efficacy against Ixodes. These are FOS and Fitoverm, which provided a 100% lethal effect against Ixodes in working concentrations of 3–4% and 0.1–0.3% under laboratory conditions. Treatment with Fitoverm 0.3%, FOS 3% and synthetic industrial drug Briz 25% of e.c. 0.75% of grass stand at the stage of grazing for cattle in pasture conditions statistically significantly reduces the number of ticks by 71–79%.

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