First molecular identification of the tularemia agent in the ticks Ixodes trianguliceps Bir. in Russia

Кормилицына, М. И.; Éi, Korenberg; Kovalevskii, Yu. V.; Meshcherakova, I S

doi:10.18821/0208-0613-2016-34-2-67-70

Cited by 5 publications

(4 citation statements)

References 14 publications

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“…Several TBPs, such as Anaplasma phagocytophilum [ 32 ], Neoehrlichia mikurensis and Babesia microti [ 33 ], Francisella tularensis [ 34 ] have been detected in nidicolous rodent specialists I. trianguliceps ticks removed from small mammals. As reported by Igolkina et al [ 7 ], SFG Rickettsia was found in 41.2% (14/34) of analyzed I. trianguliceps ticks feeding on voles in Western Siberia, which is significantly higher than the results reported here in our study (3.4%, 4/117).…”

Section: Discussionmentioning

confidence: 99%

Rickettsia spp. in rodent-attached ticks in Estonia and first evidence of spotted fever group Rickettsia species Candidatus Rickettsia uralica in Europe

et al. 2021

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Background Rickettsia spp. are human pathogens that cause a number of diseases and are transmitted by arthropods, such as ixodid ticks. Estonia is one of few regions where the distribution area of two medically important tick species, Ixodes persulcatus and I. ricinus, overlaps. The nidicolous rodent-associated Ixodestrianguliceps has also recently been shown to be present in Estonia. Although no data are available on human disease(s) caused by tick-borne Rickettsia spp. in Estonia, the presence of three Rickettsia species in non-nidicolous ticks has been previously reported. The aim of this study was to detect, identify and partially characterize Rickettsia species in nidicolous and non-nidicolous ticks attached to rodents in Estonia. Results Larvae and nymphs of I.ricinus (n = 1004), I. persulcatus (n = 75) and I.trianguliceps (n = 117), all removed from rodents and shrews caught in different parts of Estonia, were studied for the presence of Rickettsia spp. by nested PCR. Ticks were collected from 314 small animals of five species [Myodes glareolus (bank voles), Apodemus flavicollis (yellow necked mice), A.agrarius (striped field mice), Microtus subterranius (pine voles) and Sorex araneus (common shrews)]. Rickettsial DNA was detected in 8.7% (103/1186) of the studied ticks. In addition to identifying R.helvetica, which had been previously found in questing ticks, we report here the first time that the recently described I.trianguliceps-associated Candidatus Rickettsia uralica has been identified west of the Ural Mountains.

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Section: Discussionmentioning

confidence: 99%

Rickettsia spp. in rodent-attached ticks in Estonia and first evidence of spotted fever group Rickettsia species Candidatus Rickettsia uralica in Europe

et al. 2021

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“…There have been reports of the detection of several TBP, such as Anaplasma phagocytophilum [32], Neoehrlichia mikurensis and Babesia microti [33], Francisella tularensis [34] in nidicolous rodent-specialists I. trianguliceps ticks removed from small mammals. As reported by Igolkina et al [7], SFG Rickettsia was found in 41.2% (14/34) of analyzed I. trianguliceps ticks feeding on voles in Western Siberia, which is signi cantly higher than the results of the current study (3.4%, 4/117).…”

Section: Discussionmentioning

confidence: 99%

Rickettsia spp. in rodent-attached ticks in Estonia and first evidence of spotted fever group Rickettsia species Candidatus Rickettsia uralica in Europe.

Vikentjeva

Geller

Remm

et al. 2021

Preprint

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BACKGROUND: Rickettsia spp. are human pathogens that cause a number of diseases and are transmitted by arthropods, such as ixodid ticks. Estonia is one of few regions where the distribution area of two medically important tick species, Ixodes persulcatus and I. ricinus, overlaps. The presence of the nidicolous rodent-associated I. trianguliceps has also recently been shown in Estonia. Although there is no data available in Estonia on human disease caused by tick-borne Rickettsia spp., the presence of three Rickettsia species in non-nidicolous ticks was also previously reported. The aim of this study was to detect, identify and partially characterize Rickettsia species in nidicolous and non-nidicolous ticks attached to rodents.RESULTS: Larvae and nymphs of I. ricinus (n = 1004), I. persulcatus (n = 75) and I. trianguliceps (n = 117) removed from rodents and shrews caught in different parts of Estonia were studied for the presence of Rickettsia spp. by nested PCR. Ticks were collected from 314 small animals of 5 species (Myodes glareolus (bank voles), Apodemus flavicollis (yellow necked mice), A. agrarius (striped field mice), Microtus subterranius (pine voles) and Sorex araneus (common shrews)). Rickettsial DNA was detected in 8.7% (103/1186) of the studied ticks. In addition to R. helvetica previously found in questing ticks, this study reports the first identification of the recently described I. trianguliceps-associated Candidatus R. uralica west of the Ural Mountains.

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“…There have been reports on the detection of several TBPs, such as Anaplasma phagocytophilum [22], Candidatus Neoehrlichia mikurensis and Babesia microti [23], Francisella tularensis [24] in nidicolous rodent-specialists I. trianguliceps ticks. As reported by Igolkina et al [17], SFG Rickettsia was found in 41,2% (14/34) of analyzed I. trianguliceps ticks in Western Siberia, which is significantly higher than the results of the current study (3,4%, 4/117).…”

Section: Rickettsia Screening and Rickettsia Speciesmentioning

confidence: 99%

Rickettsia spp. in rodent-attached ticks and first evidence of Spotted fever Group Rickettsia species Candidatus Rickettsia uralica in Europe.

Vikentjeva

Geller

Remm

et al. 2020

Preprint

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BACKGROUND Rickettsia spp. are human pathogens that cause a number of diseases and are transmitted by arthropods, including ixodid ticks. Estonia contributes a region, where the distribution area of two exophilic tick species of known medical importance, Ixodes persulcatus and I. ricinus, overlap. The presence of the nidicolous rodent-associated I. trianguliceps has recently been shown for Estonia. Although there is no Estonian data available on human disease caused by tick-borne Rickettsia spp., the presence of three Rickettsia species in non-nidicolous ticks, albiet at very dissimilar rates, was also previously reported. The aim of this studywas to screen, identify and characterize Rickettsia species in nidicolous and non-nidicolous ticks attached to rodents. RESULTS Nymphs and larvae of I. ricinus ( n = 1004), I . persulcatus ( n = 75) and I. trianguliceps ( n = 117) attached to rodents and shrews caught in different parts of Estonia were studied for the presence of Rickettsia spp. by nested PCR. Ticks were removed from 314 small animals of 5 species (bank voles Myodes glareolus , yellow necked mice Apodemus flavicollis , striped field mice A. agrarius, pine voles M. subterranius and common shrews S. araneus) . Rickettsial DNA was detected in 8,7% (103/1186) studied ticks. In addition to R. helvetica, previously found in questing ticks, this study reports the first identification of the recently described I. trianguliceps- associated Candidatus R. uralica in west of the Ural.

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First molecular identification of the tularemia agent in the ticks Ixodes trianguliceps Bir. in Russia

Cited by 5 publications

References 14 publications

Rickettsia spp. in rodent-attached ticks in Estonia and first evidence of spotted fever group Rickettsia species Candidatus Rickettsia uralica in Europe

Rickettsia spp. in rodent-attached ticks in Estonia and first evidence of spotted fever group Rickettsia species Candidatus Rickettsia uralica in Europe

Rickettsia spp. in rodent-attached ticks in Estonia and first evidence of spotted fever group Rickettsia species Candidatus Rickettsia uralica in Europe.

Rickettsia spp. in rodent-attached ticks and first evidence of Spotted fever Group Rickettsia species Candidatus Rickettsia uralica in Europe.

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