Results of epizootic monitoring of natural foci of particularly dangerous infections common to humans and animals in Rostov Oblast

Lukshina, E. Y.; Batashev, V. V.; Ковалев, Е. В.; Карпущенко, Г. В.; Balakhnova, V. V.; Panasyuk, N. V.; Алиева, А. А.; Sidel’nikov, V. V.; Schwager, M. M.; Polovinka, N. V.; Polonsky, A. V.; Логвин, Ф. В.; Tutunkova, N. G.; Носков, А. К.

doi:10.21886/2219-8075-2021-12-4-83-90

Cited by 5 publications

(1 citation statement)

References 8 publications

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“…в последние годы регистрируются единичные случаи глпс на юге европейской части россии: в волгоградской, астраханской областях, краснодарском и ставропольском краях, республике калмыкия [14,15]. в ростовской области (ро) первый лабораторно подтвержденный случай заболевания зарегистрирован в песчанокопском районе в 2018 г. в 2019 г. один больной выявлен в сальском районе [16]. в 2020-2021 гг.…”

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Current State of the Issue of Hemorrhagic Fever with Renal Syndrome in the Rostov Region

Тришина

Березняк

Пичурина

et al. 2023

Problemy Osobo Opasnykh Infektsii

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Hemorrhagic fever with renal syndrome (HFRS) is registered in various geographical regions of the Russian Federation and occupies one of the leading positions among natural-focal human diseases in Russia. The aim of the study was to assess the epidemiological situation on HFRS in the Rostov Region. Materials and methods. Laboratory diagnostics of field material (samples from wild rodents) for the presence of antigens of HFRS pathogens and screening of blood sera from donors, residents of the region, for the presence of class G antibodies to viruses that cause HFRS were carried out by enzyme immunoassay during 2020 and 2021. Results and discussion. Hantavirus antigens were identified in five administrative districts of the Region in 2020, infection with HFRS virus in small mouse-like rodents was 7.1 %. In 2021, spontaneous infection of carriers was detected in 2.8 % of the samples, found in four districts of the Region. The presence of the virus markers was recorded in populations of five species of mouse-like rodents: house mouse, wood mouse, common vole, small wood mouse, yellow-bellied mouse. Among healthy population, class G antibodies were registered in 6.8 % in the surveyed territories in 2020, and 4.5 % in 2021. Detection of virus markers in carriers and the presence of a natural immune layer of the population as regards HFRS agents suggest the existence of a natural HFRS focus in the Rostov Region.

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Current State of the Issue of Hemorrhagic Fever with Renal Syndrome in the Rostov Region

Тришина

Березняк

Пичурина

et al. 2023

Problemy Osobo Opasnykh Infektsii

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Evaluation of serological indicators of the presence of antibodies to pathogens of natural focal infections in the population of the Rostov region in 2021

Березняк

Тришина

Аронова

et al. 2023

Med. vestn. Ûga Ross.

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Objective: to analyze the results of blood sera comprehensive study of the local population of the RR, conducted in 2021 to assess the state of natural and zoonotic focus of CHF, WNF, ITBB, tularemia and risk of possible spread of Haemorrhagic Fever with Renal Syndrome (HFRS). Materials and methods: 424 blood serums obtained in 2021 from healthy donors living in 10 administrative territories of the Russian Federation were tested by enzyme immunoassay. Results: in 2021 the detection rates of specific antibodies in the studied areas were: WNF — 9,9 %, HFRS — 4,5 %, ITBB — 2,6 %, CHF — 0,7 %, tularemia — 22,6 %. When comparing the results obtained in 2020 and 2021, the difference in the proportions of seropositive samples is not statistically significant. Conclusions: the study of the immune layer to NFI in selected population groups confirms the circulation of pathogens in RR territory. The monitoring results demonstrate the extensive, mostly combined nosoareals of NFI of viral and bacterial etiology and the contact of the local population with them.

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Serological monitoring of actual natural focal infections in the Rostov Region (2020–2022)

Bereznyak,

Trishina,

Pichurina

et al. 2024

Med. vestn. Ûga Ross.

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Objective: to study the level of the immune layer of the population to pathogens of natural focal infectious diseases in order to establish the epidemic activity of natural foci of particularly dangerous infectious diseases in the Rostov region.Materials and methods: blood serums of healthy donors living in the administrative territories of the region were collected in the period from 2020 to 2022. Specific antibodies in blood sera were determined by the ELISA method. Serum specific IgG class immunoglobulins were used as a serological marker of the transmitted infection.Results: IgG to the Crimean hemorrhagic fever virus was not detected in 2020. In 2021, the share of seropositive results was 0.7%, in 2022 — 2.0%. The proportion of IgG to West Nile virus in 2020 was 8.7%, in 2021 — 9.9%, in 2022 — 12.4%. Serological testing revealed an immune layer to ixodic tick–borne borreliosis in 2020–2022: 3.1%, 2.6% and 2.0%, respectively. Antibodies to hantaviruses, pathogens of hemorrhagic fever with renal syndrome in the blood of residents of the region in 2020 were found in 7.0% of samples, in 2021 — 4.5%, in 2022 — 7.1%. The share of positive samples in the study for Ku fever in 2022 was 2.3%. Conclusion: Seropositive samples were detected for all studied natural focal infections. The greatest variety of natural focal infections confirmed by serological monitoring data was detected in cities (Rostov-on-Don, Taganrog, Zernograd, Kamensk-Shakhtinsky) and districts of RO (Salsky, Neklinovsky, Remontnensky).Conclusion. The results of the serological monitoring made it possible to identify the circulation of pathogens of KGL, LZN, ICB, Ku fever, hantaviruses in the territory of two districts of the region. The detection of specific antibodies in the blood sera of healthy donors indicates the epidemic activity of natural foci. Also, a comprehensive study of healthy donors expanded the understanding of the area of the most relevant natural focal infections such as (KGL, LZN, ICB), and less frequently registered at present (HFRS and Ku fever).

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Results of epizootic monitoring of natural foci of particularly dangerous infections common to humans and animals in Rostov Oblast

Cited by 5 publications

References 8 publications

Current State of the Issue of Hemorrhagic Fever with Renal Syndrome in the Rostov Region

Current State of the Issue of Hemorrhagic Fever with Renal Syndrome in the Rostov Region

Evaluation of serological indicators of the presence of antibodies to pathogens of natural focal infections in the population of the Rostov region in 2021

Serological monitoring of actual natural focal infections in the Rostov Region (2020–2022)

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