Infection of ixodes ticks and wild small mammals with pathogens of natural focal infections in the territory of the Kurortny district of St. Petersburg
The purpose of this study was to identify the genetic markers of Borrelia burgdorferi sensu lato, Rickettsia spp. SFG, Anaplasma phagocytophilum, Ehrlichia caffeensis/E. muris, Coxiella burnetii, and tick-borne encephalitis virus (TBE) in ixodes ticks and organs of wild small mammals collected and c...
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| Format: | Article |
| Language: | Russian |
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Journal Infectology
2025-06-01
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| Series: | Журнал инфектологии |
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| Online Access: | https://journal.niidi.ru/jofin/article/view/1794 |
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| author | D. I. Grechishkina I. A. Karmokov R. R. Baimova E. G. Riabiko E. S. Khalilov I. S. Lyzenko A. A. Sharova G. A. Lunina O. A. Freylikhman N. K. Tokarevich |
| author_facet | D. I. Grechishkina I. A. Karmokov R. R. Baimova E. G. Riabiko E. S. Khalilov I. S. Lyzenko A. A. Sharova G. A. Lunina O. A. Freylikhman N. K. Tokarevich |
| author_sort | D. I. Grechishkina |
| collection | DOAJ |
| description | The purpose of this study was to identify the genetic markers of Borrelia burgdorferi sensu lato, Rickettsia spp. SFG, Anaplasma phagocytophilum, Ehrlichia caffeensis/E. muris, Coxiella burnetii, and tick-borne encephalitis virus (TBE) in ixodes ticks and organs of wild small mammals collected and captured in 2020-2023 in the Kurortny district of St. Petersburg.Materials and methods. Samples of ixodes ticks and organs of wild small mammals were examined by real-time PCR for the presence of genetic material of the causative agents of tick-borne infections. Ixodes ticks were collected and wild small mammals were captured in the Kurortny district of St.Petersburg in the period 2020-2023. The study was conducted using commercial test systems.Results. The overall infection rates of ixodes ticks and wild small mammals in relation to B. burgdorferi s.l. were 23.7% and 5.2%, respectively; Rickettsia spp. SFG – 11.5% and 0.9%; E. chaffensis/ E. muris – 4.0% and 0.0%; A. phagocytophilum – 1.6% and 0.6%; C. burnetii – 3.3% and 5.2%; tick–borne encephalitis virus – 0.2% and 0.0%. The total infection rate of ticks with two or more pathogens was 6.6%, the most common combinations of mixed infections were: B. burgdorferi s.l. + Rickettsia spp. SFG, B. burgdorferi s.l. + C. burnetii and B. burgdorferi s.l. + E. chaffensis/ E. muris.Conclusion. The results obtained indicate the existence of active natural foci of tick-borne infections in the Kurortny district of St. Petersburg and substantiate the expediency of continuous entomological and zoological monitoring and improvement of preventive measures against tick-borne infections. |
| format | Article |
| id | doaj-art-04311809d9934b0193aa91d3e7b0e6e6 |
| institution | Kabale University |
| issn | 2072-6732 |
| language | Russian |
| publishDate | 2025-06-01 |
| publisher | Journal Infectology |
| record_format | Article |
| series | Журнал инфектологии |
| spelling | doaj-art-04311809d9934b0193aa91d3e7b0e6e62025-08-20T04:00:18ZrusJournal InfectologyЖурнал инфектологии2072-67322025-06-0117214315210.22625/2072-6732-2025-17-2-143-1521230Infection of ixodes ticks and wild small mammals with pathogens of natural focal infections in the territory of the Kurortny district of St. PetersburgD. I. Grechishkina0I. A. Karmokov1R. R. Baimova2E. G. Riabiko3E. S. Khalilov4I. S. Lyzenko5A. A. Sharova6G. A. Lunina7O. A. Freylikhman8N. K. Tokarevich9Saint-Petersburg Research Institute of Epidemiology and Microbiology named after PasteurSaint-Petersburg Research Institute of Epidemiology and Microbiology named after PasteurSaint-Petersburg Research Institute of Epidemiology and Microbiology named after PasteurSaint-Petersburg Research Institute of Epidemiology and Microbiology named after PasteurSaint-Petersburg Research Institute of Epidemiology and Microbiology named after PasteurSaint-Petersburg Research Institute of Epidemiology and Microbiology named after PasteurSaint-Petersburg Research Institute of Epidemiology and Microbiology named after PasteurSaint-Petersburg Research Institute of Epidemiology and Microbiology named after PasteurSaint-Petersburg Research Institute of Epidemiology and Microbiology named after PasteurSaint-Petersburg Research Institute of Epidemiology and Microbiology named after PasteurThe purpose of this study was to identify the genetic markers of Borrelia burgdorferi sensu lato, Rickettsia spp. SFG, Anaplasma phagocytophilum, Ehrlichia caffeensis/E. muris, Coxiella burnetii, and tick-borne encephalitis virus (TBE) in ixodes ticks and organs of wild small mammals collected and captured in 2020-2023 in the Kurortny district of St. Petersburg.Materials and methods. Samples of ixodes ticks and organs of wild small mammals were examined by real-time PCR for the presence of genetic material of the causative agents of tick-borne infections. Ixodes ticks were collected and wild small mammals were captured in the Kurortny district of St.Petersburg in the period 2020-2023. The study was conducted using commercial test systems.Results. The overall infection rates of ixodes ticks and wild small mammals in relation to B. burgdorferi s.l. were 23.7% and 5.2%, respectively; Rickettsia spp. SFG – 11.5% and 0.9%; E. chaffensis/ E. muris – 4.0% and 0.0%; A. phagocytophilum – 1.6% and 0.6%; C. burnetii – 3.3% and 5.2%; tick–borne encephalitis virus – 0.2% and 0.0%. The total infection rate of ticks with two or more pathogens was 6.6%, the most common combinations of mixed infections were: B. burgdorferi s.l. + Rickettsia spp. SFG, B. burgdorferi s.l. + C. burnetii and B. burgdorferi s.l. + E. chaffensis/ E. muris.Conclusion. The results obtained indicate the existence of active natural foci of tick-borne infections in the Kurortny district of St. Petersburg and substantiate the expediency of continuous entomological and zoological monitoring and improvement of preventive measures against tick-borne infections.https://journal.niidi.ru/jofin/article/view/1794ixodid ticks, wild small mammals, borrelia burgdorferi sensu latorickettsia spp. sfgehrlichia spp.coxiella burnetiianaplasma phagocytophilumtick-borne encephalitis virus |
| spellingShingle | D. I. Grechishkina I. A. Karmokov R. R. Baimova E. G. Riabiko E. S. Khalilov I. S. Lyzenko A. A. Sharova G. A. Lunina O. A. Freylikhman N. K. Tokarevich Infection of ixodes ticks and wild small mammals with pathogens of natural focal infections in the territory of the Kurortny district of St. Petersburg Журнал инфектологии ixodid ticks, wild small mammals, borrelia burgdorferi sensu lato rickettsia spp. sfg ehrlichia spp. coxiella burnetii anaplasma phagocytophilum tick-borne encephalitis virus |
| title | Infection of ixodes ticks and wild small mammals with pathogens of natural focal infections in the territory of the Kurortny district of St. Petersburg |
| title_full | Infection of ixodes ticks and wild small mammals with pathogens of natural focal infections in the territory of the Kurortny district of St. Petersburg |
| title_fullStr | Infection of ixodes ticks and wild small mammals with pathogens of natural focal infections in the territory of the Kurortny district of St. Petersburg |
| title_full_unstemmed | Infection of ixodes ticks and wild small mammals with pathogens of natural focal infections in the territory of the Kurortny district of St. Petersburg |
| title_short | Infection of ixodes ticks and wild small mammals with pathogens of natural focal infections in the territory of the Kurortny district of St. Petersburg |
| title_sort | infection of ixodes ticks and wild small mammals with pathogens of natural focal infections in the territory of the kurortny district of st petersburg |
| topic | ixodid ticks, wild small mammals, borrelia burgdorferi sensu lato rickettsia spp. sfg ehrlichia spp. coxiella burnetii anaplasma phagocytophilum tick-borne encephalitis virus |
| url | https://journal.niidi.ru/jofin/article/view/1794 |
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