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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="other" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Hygiene and Sanitation</journal-id><journal-title-group><journal-title xml:lang="en">Hygiene and Sanitation</journal-title><trans-title-group xml:lang="ru"><trans-title>Гигиена и санитария</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0016-9900</issn><issn publication-format="electronic">2412-0650</issn><publisher><publisher-name xml:lang="en">Federal Scientific Center of Hygiene named after F.F. Erisman</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">639783</article-id><article-id pub-id-type="doi">10.47470/0016-9900-2019-98-11-1240-1244</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>EXPERIMENTAL INVESTIGATIONS</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ЭКСПЕРИМЕНТАЛЬНЫЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">Comparative stability of poliovirus, hepatitis a virus and their RNA to the impact of ultraviolet radiation</article-title><trans-title-group xml:lang="ru"><trans-title>Сравнительная устойчивость полиовирусов, вируса гепатита А и их РНК к воздействию ультрафиолетового облучения</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6544-2959</contrib-id><name-alternatives><name xml:lang="en"><surname>Nedachin</surname><given-names>Aleksandr E.</given-names></name><name xml:lang="ru"><surname>Недачин</surname><given-names>Александр Евгеньевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, Ph.D., DSci., professor, leading researcher of the Laboratory of sanitary virology of the Center for Strategic Planning, Russian Ministry of Health, Moscow, 119121, Russian Federation.</p><p>e-mail: microblab@list.ru</p></bio><bio xml:lang="ru"><p>Кандидат мед. наук, ведущий научный сотрудник лаборатории санитарной вирусологии ФГБУ «Центр стратегического планирования» Минздрава России, 119121, Москва.</p><p>e-mail: microblab@list.ru</p></bio><email>microblab@list.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4408-9831</contrib-id><name-alternatives><name xml:lang="en"><surname>Dmitrieva</surname><given-names>R. A.</given-names></name><name xml:lang="ru"><surname>Дмитриева</surname><given-names>Р. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3613-4305</contrib-id><name-alternatives><name xml:lang="en"><surname>Doskina</surname><given-names>T. V.</given-names></name><name xml:lang="ru"><surname>Доскина</surname><given-names>Т. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Dolgin</surname><given-names>V. A.</given-names></name><name xml:lang="ru"><surname>Долгин</surname><given-names>В. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Center for Strategic Planning, Russian Ministry of Health</institution></aff><aff><institution xml:lang="ru">Федеральное государственное бюджетное учреждение «Центр стратегического планирования и управления медико-биологическими рисками здоровью» Министерства здравоохранения Российской Федерации</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2019-11-15" publication-format="electronic"><day>15</day><month>11</month><year>2019</year></pub-date><volume>98</volume><issue>11</issue><issue-title xml:lang="ru"/><fpage>1240</fpage><lpage>1244</lpage><history><date date-type="received" iso-8601-date="2024-10-25"><day>25</day><month>10</month><year>2024</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2024, Nedachin A.E., Dmitrieva R.A., Doskina T.V., Dolgin V.A.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2024, Недачин А.Е., Дмитриева Р.А., Доскина Т.В., Долгин В.А.</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="en">Nedachin A.E., Dmitrieva R.A., Doskina T.V., Dolgin V.A.</copyright-holder><copyright-holder xml:lang="ru">Недачин А.Е., Дмитриева Р.А., Доскина Т.В., Долгин В.А.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/" start_date="2020-11-30"/></permissions><self-uri xlink:href="https://journals.eco-vector.com/0016-9900/article/view/639783">https://journals.eco-vector.com/0016-9900/article/view/639783</self-uri><abstract xml:lang="en"><p><italic><bold>Introduction.</bold> The results of experimental studies on the comparative assessment of the effects of various doses of UV radiation on the survival of poliovirus type I LSc2ab, phage MS-2, hepatitis A viruses and their RNA in tap water are presented. </italic></p><p><italic><bold>Material and methods.</bold> Poliomyelitis viruses of type I strain LSc2ab (PV), viruses of hepatitis A, strain HAS-15 (HAV), phages MS-2, free RNA isolated from hepatitis viruses and poliomyelitis were introduced into model reservoirs with dechlorinated Moscow tap water. Water samples were taken from each tank and subjected to ultraviolet irradiation (UVR) with a wavelength of 254 nm with doses of 25, 40, 60, 80 and 100 mJ/cm<sup>2</sup>. PV titration was performed on a BGM monkey kidney cell transplant line; MS-2 phages were determined by the agar layer method using the E. coli K12F + Str. detector; determination of PV RNA and HAV was carried out on the Rotor Gene<sup>TM</sup> 6000 amplifier in RT-PCR reaction in real-time using appropriate test systems. Extraction and isolation of RNA from samples of PV and HAV were also performed using reagent kits of domestic and foreign production. </italic></p><p><italic><bold>Results.</bold> Ultraviolet irradiation in doses from 25 to 100 mJ/cm<sup>2</sup> was shown to have a pronounced inhibitory effect on phages MS-2 and PV, determined by traditional methods in accordance with the methodological guidelines MUK 4.2.1018-01 and MUK 4.2.2029-05. At UVR doses of 80 and 100 mJ/cm<sup>2</sup>, complete inactivation of MS-2 and PV phages in water was noted. At the same time, these same doses of UVR had a less inhibitory effect on PVA, HAV RNA, as well as on isolated free PVA RNA/X and HAV, which were more stable and continued to be determined by RT-PCR in water at all doses of UVR, including 80 and 100 mJ/cm<sup>2</sup>. </italic></p><p><italic><bold>Conclusion.</bold> If only RNA viruses are detected in the treated drinking water and there are no other direct or indirect indices of viral contamination, it is impossible to unambiguously judge the extent of the potential epidemic hazard of the water body. This requires the development of reliable additional tests confirming the infectivity of viruses, determined only by RNA or DNA markers.</italic></p></abstract><trans-abstract xml:lang="ru"><p><italic><bold>Введение.</bold> Представлены результаты экспериментальных исследований по сравнительной оценке воздействия различных доз УФО на выживаемость полиовирусов I типа LSc2ab, фагов MS-2, вирусов гепатита А и их РНК в водопроводной воде.</italic></p><p><italic><bold>Материал и методы.</bold> В модельные водоёмы с дехлорированной московской водопроводной водой были внесены вирусы полиомиелита I типа штамм LSc2ab (PV), вирусы гепатита А штамм HAS-15 (HAV), фаги MS-2, свободные РНК, изолированные из вирусов гепатита и полиомиелита. Из каждой ёмкости отбирали пробы воды и подвергали ультрафиолетовому облучению (УФО) с длиной волны 254 нм дозами 25; 40; 60; 80 и 100 мДж/см<sup>2</sup>. Титрование PV производили на перевиваемой линии клеток почек обезьян BGM; фаги MS-2 определяли методом агаровых слоёв с использованием детекторной E. coli K12F+Str.; определение РНК PV и HAV проводили на амплификаторе Rotor Gene<sup>TM</sup> 6000 в реакции ОТ-ПЦР real-time с использованием соответствующих тест-систем. Экстракцию и выделение РНК из образцов PV и HAV также проводили с использованием комплектов реагентов отечественного и зарубежного производства.</italic></p><p><italic><bold>Результаты.</bold> Было показано, что УФО в дозах от 25 до 100 мДж/см<sup>2</sup> оказывало выраженное угнетающее действие на фаги MS-2 и РV, определяемые традиционными методами в соответствии с МУК 4.2.1018-01 и МУК 4.2.2029-05. При дозах УФО 80 и 100 мДж/см<sup>2</sup> отмечена полная инактивация фагов MS-2 и PV в воде. Одновременно эти же дозы УФО оказывали менее угнетающее действие на РНК PV, HAV, а также на изолированные свободные РНК/Х PV и HAV, которые были более устойчивы и продолжали определяться в ОТ-ПЦР в воде при всех дозах УФО, включая 80 и 100 мДж/см<sup>2</sup> (табл. 1).</italic></p><p><italic><bold>Заключение.</bold> В случае обнаружения в обработанной питьевой воде только РНК вирусов и отсутствия других прямых или косвенных показателей вирусного загрязнения невозможно однозначно судить о степени потенциальной эпидемической опасности водного объекта. Это требует разработки надёжных дополнительных тестов, подтверждающих инфекционность вирусов, определяемых только по маркёрам РНК или ДНК.</italic></p></trans-abstract><kwd-group xml:lang="en"><kwd>viruses</kwd><kwd>coliphages</kwd><kwd>indices of viral contamination</kwd><kwd>polymerase chain reaction</kwd><kwd>epidemic danger</kwd><kwd>infectivity</kwd><kwd>ultraviolet radiation</kwd><kwd>disinfection efficiency</kwd><kwd>comparative resistance</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>вирусы</kwd><kwd>колифаги</kwd><kwd>индикаторы вирусного загрязнения</kwd><kwd>полимеразная цепная реакция</kwd><kwd>эпидемическая опасность</kwd><kwd>инфекционность</kwd><kwd>ультрафиолетовое облучение</kwd><kwd>эффективность обеззараживания</kwd><kwd>сравнительная устойчивость</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Nedachin А.Е., Dmitrieva R.A., Doskina T.V., Dolgin V.A. 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