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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">medjournal</journal-id><journal-title-group><journal-title xml:lang="ru">Медицинский журнал</journal-title><trans-title-group xml:lang="en"><trans-title>Medical Journal</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1818-426X</issn><publisher><publisher-name>Белорусский государственный медицинский университет</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.51922/1818-426X.2022.4.4</article-id><article-id custom-type="elpub" pub-id-type="custom">medjournal-258</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>ОБЗОРЫ И ЛЕКЦИИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>REVIEWS AND LECTURES</subject></subj-group></article-categories><title-group><article-title>Сравнительная оценка иммуноферментных тест-систем для выявления IgG антител к SARS-CoV-2</article-title><trans-title-group xml:lang="en"><trans-title>Comparative evaluation of enzyme immunoassay kits for detection of IgG antibodies to SARS-CoV-2</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ермолович</surname><given-names>М. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Yermalovich</surname><given-names>M. A.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Самойлович</surname><given-names>Е. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Samoilovich</surname><given-names>E. O.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Михаленко</surname><given-names>А. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Mikhalenko</surname><given-names>A. O.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Колодкина</surname><given-names>В. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Kolodkina</surname><given-names>V. L.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Семейко</surname><given-names>Г. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Semeiko</surname><given-names>G. V.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff xml:lang="ru" id="aff-1"><institution>РНПЦ эпидемиологии и микробиологи</institution><country>Belarus</country></aff><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>21</day><month>06</month><year>2025</year></pub-date><volume>0</volume><issue>4</issue><fpage>4</fpage><lpage>11</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ермолович М.А., Самойлович Е.О., Михаленко А.О., Колодкина В.Л., Семейко Г.В., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Ермолович М.А., Самойлович Е.О., Михаленко А.О., Колодкина В.Л., Семейко Г.В.</copyright-holder><copyright-holder xml:lang="en">Yermalovich M.A., Samoilovich E.O., Mikhalenko A.O., Kolodkina V.L., Semeiko G.V.</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://medjournal.ejournal.by/jour/article/view/258">https://medjournal.ejournal.by/jour/article/view/258</self-uri><abstract><p>Серологические тесты для выявления специфических антител к SARS-CoV-2 являются важным инструментом как в подтверждении диагноза, так и в исследовании эпидемиологических особенностей инфекции. С целью сравнительного анализа доступных для приобретения в Республике Беларусь тест-систем для качественного (есть/нет) определения IgG антител к SARS-CoV-2 методом ИФА было проведено исследование четырех коммерческих наборов различных производителей: Вектор-Бест, Россия; НИЦЭМ им. Н. Ф. Гамалеи, Россия; Альгимед, Беларусь; Wuhan Fine Biotech, Китай. Все тест-системы показали хорошее качество выявления специфических IgG. Наибольшую чувствительность (100,0 %) имели тест-системы производства Вектор-Бест, Россия, и Wuhan Fine Biotech, Китай; наибольшей специфичностью (100,0 %) обладала тест-система производства Альгимед, Беларусь. Выполнена оценка зависимости коэффициента позитивности образцов от концентрации IgG к SARS-CoV-2. Показано, что делать заключение о количестве антител на основании коэффициента позитивности (или показателей оптической плотности) в тест-системе, предназначенной для их качественного определения, не представляется возможным.</p></abstract><trans-abstract xml:lang="en"><p>Serological tests for the detection of specific antibodies to SARS-CoV-2 are an important tool both for confirming the diagnosis and for the epidemiological investigations. Comparative analysis of ELISA test kits for qualitative determination (yes/no) of IgG antibodies to SARS-CoV-2   available for purchase in the Republic of Belarus was done. The study included four commercial kits of various manufacturers: Vector-Best, Russia; N. F. Gamalei Research Center, Russia; Algimed, Belarus; Wuhan Fine Biotech, China. All test kits showed high quality in detection of specific IgG. The kits produced by Vector-Best, Russia, and Wuhan Fine Biotech, China had the highest sensitivity (100.0 %); the kits produced by Algimed, Belarus, had the greatest specificity (100.0 %). The dependence between the optical density of the samples and the concentration of IgG to SARS-CoV-2 was evaluated. The results showed that it is not possible to make a conclusion about the amount of antibodies based on the optical density of the sample in the test kits designed for their qualitative determination.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>SARS-CoV-2</kwd><kwd>IgG</kwd><kwd>тест-система</kwd><kwd>ИФА</kwd></kwd-group><kwd-group xml:lang="en"><kwd>SARS-CoV-2</kwd><kwd>IgG antibodies</kwd><kwd>test kits</kwd><kwd>ELISA</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">Appak, Ö., Gülmez A.., Güzel I, Gezer N. S., Doruk Ö. G., Ergor O. A., Esen N., Sayıner A. A. 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