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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">sredob</journal-id><journal-title-group><journal-title xml:lang="ru">Здоровье населения и среда обитания – ЗНиСО</journal-title><trans-title-group xml:lang="en"><trans-title>Public Health and Life Environment – PH&amp;LE</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2219-5238</issn><issn pub-type="epub">2619-0788</issn><publisher><publisher-name>ФБУЗ ФЦГиЭ Роспотребнадзора</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.35627/2219-5238/2023-31-3-64-71</article-id><article-id custom-type="elpub" pub-id-type="custom">sredob-1285</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ЭПИДЕМИОЛОГИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>EPIDEMIOLOGY</subject></subj-group></article-categories><title-group><article-title>Нематода Toxocara canis как вероятная эпидемическая и санитарно-гигиеническая угроза здоровью населения в южном субъекте Российской Федерации</article-title><trans-title-group xml:lang="en"><trans-title>Nematode Toxocara canis as a Probable Epidemic, Sanitary and Hygienic Threat to Public Health in the Southern Region of the Russian Federation</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4758-6825</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Аркелова</surname><given-names>М. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Arkelova</surname><given-names>M. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Аркелова Маржанат Руслановна, соискатель лаборатории по изучению инвазионных болезней сельскохозяйственных животных и птиц</p><p>ул. Дахадаева, д. 88, г. Махачкала, 372000</p></bio><bio xml:lang="en"><p>Marzhanat R. Arkelova, Applicant, Laboratory for Studies of Parasitic Diseases in Livestock</p><p>88 Dakhadayev Street, Makhachkala, 372000</p></bio><email xlink:type="simple">m.arkelova09@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0715-6588</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гогушев</surname><given-names>З. Т.</given-names></name><name name-style="western" xml:lang="en"><surname>Gogushev</surname><given-names>Z. T.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Гогушев Зураб Тимурович, соискатель лаборатории по изучению инвазионных болезней сельскохозяйственных животных и птиц</p><p>ул. Дахадаева, д. 88, г. Махачкала, 372000</p></bio><bio xml:lang="en"><p>Zurab T. Gogushev, Applicant, Laboratory for Studies of Parasitic Diseases in Livestock</p><p>88 Dakhadayev Street, Makhachkala, 372000</p></bio><email xlink:type="simple">z.gogushev@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2709-6383</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Биттиров</surname><given-names>И. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Bittirov</surname><given-names>I. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Биттиров Исмаил Анатольевич,  аспирант 2-го года очной формы обучения по специальности «Ветеринарно-санитарная экспертиза»</p><p>ул. Космонавтов, д. 100, г. Черкесск, 367000</p></bio><bio xml:lang="en"><p>Ismail A. Bittirov, 2-year full-time postgraduate student specializing in Veterinary and Sanitary Expert Examination</p><p>1V Lenin Street, Nalchik, 360030</p></bio><email xlink:type="simple">bia_1999@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Болатчиев</surname><given-names>К. Х.</given-names></name><name name-style="western" xml:lang="en"><surname>Bolatchiev</surname><given-names>K. Kh.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Болатчиев Керим Хасанович, д.б.н., доцент, заведующий кафедрой «Эпидемиология, гигиена и инфекционные болезни»</p><p>ул. Космонавтов, д. 100, г. Черкесск, 367000</p></bio><bio xml:lang="en"><p>Kerim Kh. Bolatchiev, Dr. Sci. (Biol.), Assoc. Prof., Head of the Department of Epidemiology, Hygiene and Infectious Diseases</p><p>100 Kosmonavtov Street, Cherkessk, 367000</p></bio><email xlink:type="simple">ker-bol@mail.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2131-5020</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Биттиров</surname><given-names>А. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Bittirov</surname><given-names>A. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Биттиров Анатолий Мурашевич – д. б. н., профессор кафедры «Ветеринарная медицина»; заведующий отделом мониторинга зоонозов человека и животных</p><p>ул. Дахадаева, д. 88, г. Махачкала, 372000</p><p>ул. Ленина, д. 1в, г. Нальчик, 360030</p><p>Author ID: 255981</p><p>Scopus ID: 56410953500</p><p>Researcher ID: AAC-4424-2020</p></bio><bio xml:lang="en"><p>Anatoly M. Bittirov, Dr. Sci. (Biol.), Professor, Department of Veterinary Medicine; Chief Researcher, Head of the Department of Zoonoses Monitoring in Humans and Animals</p><p>88 Dakhadayev Street, Makhachkala, 372000</p><p>1V Lenin Street, Nalchik, 360030</p></bio><email xlink:type="simple">bam_58a@mail.ru</email><xref ref-type="aff" rid="aff-4"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБНУ «Прикаспийский зональный научно-исследовательский ветеринарный институт» – филиал ФГБНУ «Федеральный аграрный научный центр Республики Дагестан»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Caspian Zonal Research Veterinary Institute – Branch of the Federal Agrarian Research Center of the Republic of Dagestan</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГБОУ ВО «Кабардино-Балкарский государственный аграрный университет имени В.М. Кокова»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Kabardino-Balkarian State Agrarian University named after V.M. Kokov</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>ФГБОУ ВО «Северо-Кавказская государственная академия»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>North Caucasian State Academy</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>ФГБНУ «Прикаспийский зональный научно-исследовательский ветеринарный институт» – филиал ФГБНУ «Федеральный аграрный научный центр Республики Дагестан»; ФГБОУ ВО «Кабардино-Балкарский государственный аграрный университет имени В.М. Кокова»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Caspian Zonal Research Veterinary Institute – Branch of the Federal Agrarian Research Center of the Republic of Dagestan; Kabardino-Balkarian State Agrarian University named after V.M. Kokov</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>28</day><month>03</month><year>2023</year></pub-date><volume>31</volume><issue>3</issue><fpage>64</fpage><lpage>71</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Аркелова М.Р., Гогушев З.Т., Биттиров И.А., Болатчиев К.Х., Биттиров А.М., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Аркелова М.Р., Гогушев З.Т., Биттиров И.А., Болатчиев К.Х., Биттиров А.М.</copyright-holder><copyright-holder xml:lang="en">Arkelova M.R., Gogushev Z.T., Bittirov I.A., Bolatchiev K.K., Bittirov A.M.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://zniso.fcgie.ru/jour/article/view/1285">https://zniso.fcgie.ru/jour/article/view/1285</self-uri><abstract><p>Введение. ВОЗ считает, что вид гельминтов класса Nematoda – Toxocara canis является фактором эпидемического и эпизоотического риска для людей и животных в мире и в РФ. Токсокароз человека является одним из массовых зоонозных инвазий в мире с частотой регистрации до 900 млн случаев в год у разных возрастных и социальных групп населения и санитарно-гигиенической проблемой современности.Цель исследования: изучение нематоды Toxocara canis (Werner, 1782) как эпидемического и санитарно-гигиенического риска для населения юга Российской Федерации.Материалы и методы. На основе анализа материалов иммуноферментного тестирования проб крови 6,0 тыс. чел. за 2019–2022 г. проведены расчеты заболеваемости населения личиночным токсокарозом в 10 районах и 2 городах Карачаево-Черкесии. Основные эпидемиологические показатели личиночного токсокароза у населения изучались путем иммунологических тестов с использованием диагностической иммуноферментной тест-системы «Тиаскар» (2017). В данной реакции титр специфических антител 1 : 800 и выше в крови свидетельствовал о заболевании токсокарозом, а титры 1 : 200, 1 : 400 – о носительстве личинок токсокар. Методом копроовоскопии (ВНИИП, 1986) исследовано 600 проб кала собак из 12 районов и городов. На предмет санитарного загрязнения почв 10 районов и 2 городов Карачаево-Черкесии яйцами Toxocara canis исследовано 1200 проб.Результаты. При анализе материалов индекс встречаемости личиночного токсокароза у населения 10 районов и 2 городов Карачаево-Черкесии варьировал от 2,00 до 5,40 %. В кале людей личинок Toxocara canis не обнаруживали, так как человек является биологическим тупиком для этого вида гельминтов. Колебания индекса обилия яиц Toxocara canis в кале собак составили от 2,7 ± 0,4 до 6,9 ± 0,8 экз. в 1 г кала, что может обеспечить высокий уровень контаминации почвы яйцами. В Карачаево-Черкесской Республике эпидемическую ситуацию по токсокарозу людей можно отнести к относительно благополучной за счет проведения плановых противоэпидемических работ. При этом субъект в перспективе может войти зону риска, т. к. число больных личиночным токсокарозом детей, взрослых и мигрантов имеет динамичный рост в течение всего года.Заключение. Индексы встречаемости личиночного токсокароза у детского населения и мигрантов возрастает в течение года в 2,74–2,78 раза. Почвы 10 районов и 2 городов загрязнены на 46,00–94,00 % яйцами Toxocara canis, что грозит вероятностью роста зараженности населения личиночным токсокарозом. По токсокарозу собак Карачаево-Черкесскую Республику можно отнести к неблагополучным субъектам Северо-Кавказского федерального округа.</p></abstract><trans-abstract xml:lang="en"><p>Introduction: According to the World Health Organization, Toxocara canis, a nematode in the order Ascarididia, is an epidemic and epizootic risk factor for humans and animals around the world and in the Russian Federation. Human toxocariasis is one of the commonest parasitic zoonoses with up to 900 million incident cases registered annually in different age and social groups of the population and a global public health problem of our time.Objective: To study the nematode Toxocara canis (Werner, 1782) as a health risk factor for the population of southern regions the Russian Federation.Materials and methods: We estimated the incidence of larval toxocariasis in the population of 10 districts and two cities of Karachay-Cherkessia based on the results of enzyme immunoassay of blood samples of 6,000 people in 2019–2022. The Tiascar diagnostic test kit (2017) was applied showing toxocariasis for the antibody titer ≥ 1:800 and infestation with Toxocara larvae for those of 1:200 and 1:400. The stool ova and parasite test was used to study 600 dog stool samples from the study areas. In addition, 1,200 soil samples were tested for the presence of Toxocara canis eggs.Results: We established that the incidence rate of larval toxocariasis in the population of 10 districts and two cities of Karachay-Cherkessia varied from 2.00 to 5.40 %. Toxocara canis larvae were not found in human feces, since humans are a biological dead end for this species of worms. Toxocara canis infestation rates in feces of dogs ranged from 2.7 ± 0.4 to 6.9 ± 0.8 eggs/g, potentially accounting for a high level of soil contamination with eggs. The current epidemic situation of human toxocariasis in the Karachay-Cherkess Republic is relatively favorable owing to planned preventive measures. Yet, this constituent entity is at risk of the disease in the future since the number of children, adults and migrants with larval toxocariasis shows a dynamic growth throughout the year.Conclusion: Incidence rates of larval toxocariasis in the child population and migrants demonstrate a 2.74–2.78-fold increase during the year. Toxocara canis eggs contaminate 46 to 94 % of soils in different areas of the republic posing high risks of larval toxocariasis for the local population. In terms of canine toxocariasis, the Karachay-Cherkess Republic can be attributed to disadvantaged territories of the North Caucasian Federal District.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Карачаево-Черкесская Республика</kwd><kwd>человек</kwd><kwd>собака</kwd><kwd>токсокароз</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Karachay-Cherkess Republic</kwd><kwd>human</kwd><kwd>dog</kwd><kwd>toxocariasis</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Chen J, Liu Q, Liu GH, et al. Toxocariasis: a silent threat with a progressive public health impact. Infect Dis Poverty. 2018;7(1):59. doi: 10.1186/s40249-018-0437-0</mixed-citation><mixed-citation xml:lang="en">Chen J, Liu Q, Liu GH, et al. Toxocariasis: a silent threat with a progressive public health impact. 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