scholarly journals Detection of novel tick-borne pathogen, Alongshan virus, in Ixodes ricinus ticks, south-eastern Finland, 2019

2019 ◽  
Vol 24 (27) ◽  
Author(s):  
Suvi Kuivanen ◽  
Lev Levanov ◽  
Lauri Kareinen ◽  
Tarja Sironen ◽  
Anne J. Jääskeläinen ◽  
...  

The newly identified tick-borne Alongshan virus (ALSV), a segmented Jingmen virus group flavivirus, was recently associated with human disease in China. We report the detection of ALSV RNA in Ixodes ricinus ticks in south-eastern Finland. Screening of sera from patients suspected for tick-borne encephalitis for Jingmen tick virus-like virus RNA and antibodies revealed no human cases. The presence of ALSV in common European ticks warrants further investigations on its role as a human pathogen.

2019 ◽  
Vol 10 (6) ◽  
pp. 101265 ◽  
Author(s):  
Marat Makenov ◽  
Lyudmila Karan ◽  
Natalia Shashina ◽  
Marina Akhmetshina ◽  
Olga Zhurenkova ◽  
...  

The TBE virus (TBEV) was first isolated in the Czech Republic by Czech scientists in 1948-1949 from both a patient and also from Ixodes ricinus ticks. However, even before 1948, etiologically unclear summer cases of viral meningoencephalitis had been reported, and likely, at least in part, they are attributable to the TBE virus. These cases were reported mostly from patients in the districts of Beroun (Central Bohemia), Hradec Králové (East Bohemia), Vyškov (South Moravia), and occasionally from the neighborhood of Prague. The official reports of these probable cases of ”tick-borne encephalitis” were registered in the database of the National Institute of Public Health in Prague since 1945.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Zbigniew Zając ◽  
Joanna Kulisz ◽  
Katarzyna Bartosik ◽  
Aneta Woźniak ◽  
Malwina Dzierżak ◽  
...  

AbstractIxodes ricinus is the most widely distributed tick species in Europe. Mainly deciduous and mixed forests, pastures, and urban parks are habitats preferred by this species. I. ricinus ticks are also one of the most important reservoirs and vectors of human and animal infectious diseases on the continent. Borrelia burgdorferi s.l. spirochetes causing Lyme borreliosis (LB) in humans and tick borne encephalitis virus (TBEV), which is a causative agent of tick-borne encephalitis (TBE), are pathogens with the highest medical importance transmitted by this species. Investigations of the environmental determinants of the occurrence and activity of I. ricinus are crucial for elucidation of the environmental background of tick-borne diseases. In eastern Poland, I. ricinus is a common species with peak activity recorded in May in the entire region. During this period, 49 females, 32 males, and 55 I. ricinus nymphs were collected from an area of 900 m2. The results of the present study show that the occurrence and seasonal activity of this tick species are mainly influenced by microhabitat conditions, and saturation deficit has a significant effect on the activity of the species. Eastern Poland is characterized by a high incidence of LB and TBE. We have shown a correlation between the forest cover and the number of reported cases of tick-borne diseases.


2014 ◽  
Vol 63 (1) ◽  
pp. 89-93 ◽  
Author(s):  
DOROTA KIEWRA ◽  
GRZEGORZ ZALEŚNY ◽  
ALEKSANDRA CZUŁOWSKA

Ticks constitute important vectors of human and animal pathogens. Besides the Lyme borreliosis and tick-borne encephalitis, other pathogens such as Babesia spp., Rickettsia spp., and Anaplasma phagocytophilum, are of increasing public health interest. In Poland, as in other European countries, Ixodes ricinus, the most prevalent tick species responsible for the majority of tick bites in humans, is the main vector of A. phagocytophilum. The aim of the study was to estimate the infection level of I. ricinus with A. phagocytophilum in selected districts, not previously surveyed for the presence of this agent. Sampling of questing ticks was performed in 12 forested sites, located in four districts (Legnica, Milicz, Lubań, and Oława) in SW Poland. Altogether, 792 ticks (151 females, 101 males, and 540 nymphs) representing I. ricinus were checked for the presence of A. phagocytophilum. The average infection level was 4.3%, with higher rate reported for adult ticks. The highest percentage of infected adults was observed in Milicz (17.4%) and the lowest in Oława (6.8%). The abundance of questing I. ricinus in all examined sites as well as the infection with A. phagocytophilum indicate for the first time the risk for HGA transmission in SW Poland.


2019 ◽  
Vol 22 (4) ◽  
pp. 268-273 ◽  
Author(s):  
Sergey Bugmyrin ◽  
Timo Hokkanen ◽  
Lidiya Romanova ◽  
Lubov’ Bespyatova ◽  
Fyodor Fyodorov ◽  
...  

Data concerning the occurrence and abundance of the taiga tick Ixodes persulcatus in eastern Finland (North Karelia and Kainuu regions) are presented. Sampling was carried out in May 2008 and June 2009, around the University of Joensuu Mekrijärvi Research Station and the City of Kuhmo. In 2008 and 2009, the abundance of adult taiga ticks in the first study area was 0.17 and 0.13 ticks per flag-km, respectively. Only a single I. persulcatus specimenwas found in the second study area (abundance was 0.02 specimens per flag-km). All ticks (635 specimens) collected from cats and dogs in south-eastern Finlandwere identified as Ixodes ricinus.


Author(s):  
Petr Pazdiora

The TBE virus (TBEV) was first isolated in the Czech Republic by Czech scientists in 1948-1949 from both a patient and also from Ixodes ricinus ticks.1 However, even before 1948, etiologically unclear summer cases of viral meningoencephalitis had been reported, and likely, at least in part, they are attributable to the TBE virus. These cases were reported mostly from patients in the districts of Beroun (Central Bohemia), Hradec Králové (East Bohemia), Vyškov (South Moravia), and occasionally from the neighborhood of Prague. The official reports of these probable cases of ”tick-borne encephalitis” were registered in the database of the National Institute of Public Health in Prague since 1945.


2014 ◽  
Vol 5 (6) ◽  
pp. 962-969 ◽  
Author(s):  
Mirko Slovák ◽  
Mária Kazimírová ◽  
Marta Siebenstichová ◽  
Katarína Ustaníková ◽  
Boris Klempa ◽  
...  

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