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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">Russian Journal of Infection and Immunity</journal-id><journal-title-group><journal-title xml:lang="en">Russian Journal of Infection and Immunity</journal-title><trans-title-group xml:lang="ru"><trans-title>Инфекция и иммунитет</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2220-7619</issn><issn publication-format="electronic">2313-7398</issn><publisher><publisher-name xml:lang="en">SPb RAACI</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">791</article-id><article-id pub-id-type="doi">10.15789/2220-7619-2018-3-383-387</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>SHORT COMMUNICATIONS</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>КРАТКИЕ СООБЩЕНИЯ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">IMPACT OF COINFECTION OF PV B19 ON THE COURSE AND PROGNOSIS OF MALARIA CAUSED BY PLASMODIUM FALCIPARUM</article-title><trans-title-group xml:lang="ru"><trans-title>ВЛИЯНИЕ КОИНФИЦИРОВАНИЯ PVB19 И PLASMODIUM FALCIPARUM НА ТЕЧЕНИЕ И ПРОГНОЗ МАЛЯРИИ</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Lavrentyeva</surname><given-names>I. N.</given-names></name><name xml:lang="ru"><surname>Лаврентьева</surname><given-names>И. Н.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>PhD, MD (Medicine), Head of Laboratory of Experimental Virology.</p><p>197101, Russian Federation, St. Petersburg, Mira str., 14.</p><p>Phone: +7 (812) 232-94-11 (office); +7 (921) 341-05-01 (mobile).</p></bio><bio xml:lang="ru"><p>д.м.н., зав. лабораторией экспериментальной вирусологии.</p><p>197101, Россия, Санкт-Петербург, ул. Мира, 14.</p><p>Тел.: 8 (812) 232-94-11 (служебн.); 8 (921) 341-05-01 (моб.).</p></bio><email>pasteur.lawr@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Khamitova</surname><given-names>I. V.</given-names></name><name xml:lang="ru"><surname>Хамитова</surname><given-names>И. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Head of Central Сlinical Diagnostic Laboratory.</p><p>St. Petersburg.</p></bio><bio xml:lang="ru"><p/><p>зав. Центральной клинико-диагностической лабораторией.</p>Санкт-Петербург.</bio><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Slita</surname><given-names>A. V.</given-names></name><name xml:lang="ru"><surname>Слита</surname><given-names>А. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p/><p>PhD (Biology), Senior Researcher, Laboratory of Experimental Virology.</p>St. Petersburg.</bio><bio xml:lang="ru"><p/><p>к.б.н., старший научный сотрудник лаборатории экспериментальной вирусологии.</p>Санкт-Петербург.</bio><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Levkovski</surname><given-names>A. E.</given-names></name><name xml:lang="ru"><surname>Левковский</surname><given-names>А. E.</given-names></name></name-alternatives><address><country country="GN">Guinea</country></address><bio xml:lang="en"><p>Head.</p><p>Fria.</p></bio><bio xml:lang="ru"><p>руководитель.</p><p>Фрия.</p></bio><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Diallo</surname><given-names>A. A.</given-names></name><name xml:lang="ru"><surname>Диало</surname><given-names>А. А.</given-names></name></name-alternatives><address><country country="GN">Guinea</country></address><bio xml:lang="en"><p>Head Physician.</p><p>Fria.</p></bio><bio xml:lang="ru"><p>главный врач.</p><p>Фрия.</p></bio><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Diallo</surname><given-names>A. K.</given-names></name><name xml:lang="ru"><surname>Диало</surname><given-names>А. К.</given-names></name></name-alternatives><address><country country="GN">Guinea</country></address><bio xml:lang="en"><p>Head of the Laboratory.</p><p>Fria.</p></bio><bio xml:lang="ru"><p>зав. лабораторией.</p><p>Фрия.</p></bio><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Sow</surname><given-names>T. C.</given-names></name><name xml:lang="ru"><surname>Соу</surname><given-names>Т. С.</given-names></name></name-alternatives><address><country country="GN">Guinea</country></address><bio xml:lang="en"><p>Laboratory assistant.</p><p>Fria.</p></bio><bio xml:lang="ru"><p>врач-лаборант.</p><p>Фрия.</p></bio><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Naydenova</surname><given-names>E. V.</given-names></name><name xml:lang="ru"><surname>Найденова</surname><given-names>Е. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p/><p>PhD (Biology), Senior Researcher, Department of Diagnostics of Infectious Diseases.</p>Saratov.</bio><bio xml:lang="ru"><p/><p>к.б.н., старший научный сотрудник отдела диагностики инфекционных болезней.</p>Саратов.</bio><xref ref-type="aff" rid="aff4"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Agafonov</surname><given-names>D. A.</given-names></name><name xml:lang="ru"><surname>Агафонов</surname><given-names>Д. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p/><p>PhD (Biology), Senior Researcher, Department of Microbioilogy.</p>Saratov.</bio><bio xml:lang="ru"><p/><p>к.б.н., старший научный сотрудник отдела микробиологии.</p>Саратов.</bio><xref ref-type="aff" rid="aff4"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Senichkina</surname><given-names>A. M.</given-names></name><name xml:lang="ru"><surname>Сеничкина</surname><given-names>А. М.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p/><p>PhD (Biology), Senior Researcher, Department of Diagnostics of Infectious Diseases.</p>Saratov.</bio><bio xml:lang="ru"><p/><p>к.б.н., научный сотрудник отдела диагностики инфекционных болезней.</p>Саратов.</bio><xref ref-type="aff" rid="aff4"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">St. Petersburg Pasteur Institute.</institution></aff><aff><institution xml:lang="ru">ФБУН НИИ эпидемиологии и микробиологии имени П.астера</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">St. Petersburg Pasteur Institute.</institution></aff><aff><institution xml:lang="ru">ФБУН НИИ эпидемиологии и микробиологии имени Пастера.</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Hospital RUSAL FRIGUIA.</institution></aff><aff><institution xml:lang="ru">Госпиталь «РУСАЛ» Боксито-глиноземного комплекса «Фригия».</institution></aff></aff-alternatives><aff-alternatives id="aff4"><aff><institution xml:lang="en">Russian Research Anti-Plague Institute “Microbe”.</institution></aff><aff><institution xml:lang="ru">ФКУЗ Российский научно-исследовательский противочумный институт "Микроб" Роспотребнадзора.</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2018-11-04" publication-format="electronic"><day>04</day><month>11</month><year>2018</year></pub-date><volume>8</volume><issue>3</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>383</fpage><lpage>387</lpage><history><date date-type="received" iso-8601-date="2018-11-02"><day>02</day><month>11</month><year>2018</year></date><date date-type="accepted" iso-8601-date="2018-11-02"><day>02</day><month>11</month><year>2018</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2018, Lavrentyeva I.N., Khamitova I.V., Slita A.V., Levkovski A.E., Diallo A.A., Diallo A.K., Sow T.C., Naydenova E.V., Agafonov D.A., Senichkina A.M.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2018, Лаврентьева И.Н., Хамитова И.В., Слита А.В., Левковский А.E., Диало А.А., Диало А.К., Соу Т.С., Найденова Е.В., Агафонов Д.А., Сеничкина А.М.</copyright-statement><copyright-year>2018</copyright-year><copyright-holder xml:lang="en">Lavrentyeva I.N., Khamitova I.V., Slita A.V., Levkovski A.E., Diallo A.A., Diallo A.K., Sow T.C., Naydenova E.V., Agafonov D.A., Senichkina A.M.</copyright-holder><copyright-holder xml:lang="ru">Лаврентьева И.Н., Хамитова И.В., Слита А.В., Левковский А.E., Диало А.А., Диало А.К., Соу Т.С., Найденова Е.В., Агафонов Д.А., Сеничкина А.М.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://iimmun.ru/iimm/article/view/791">https://iimmun.ru/iimm/article/view/791</self-uri><abstract xml:lang="en"><p>Parvovirus infection (PVI) is widespread in the world; more than 80% of the adult population have antibodies of IgG class to parvovirus B19. Malaria is a vector-borne parasitic disease caused by the protozoa of the genus Plasmodium, that is widespread in the countries of Africa, Southeast Asia, Oceania. The objective of the present study was to evaluate the effect of parvovirus B19 infection on the clinical course of malaria and the outcome of the underlying disease. During the period 2016–2018 blood plasma samples of 316 patients from the hospital of the Friya Prefecture of the Republic of Guinea (GR) with confirmed diagnosis of malaria were examined for the presence of PVB19 DNA. The clinical course of malaria in 316 examined patients was divided into group of either mild or complicated. In total, PVB19 DNA was detected in blood plasma in 55 of 316 patients (17.41±2.13%). But in the group with co-infection of PVB19 and P. falciparum complications were observed in 40 of 55 (72.73±2.75%) patients, and in 6 of 55 cases (10.91±4.40%) the disease resulted in death. In the group of patients with malaria without PVI, complications occurred in 99 of 261 patients (37.9±3.0%); of those 2 (0.77±0.54%) died. It was found that the most numerous group in the structure of malaria patients is represented by children under 5 (median 3) years (89, or 28.25±2.53%). Our results correlate with the data of other researchers who studied the PVI-associated malaria in children in malaria-endemic regions: among children under 5 years, the absolute majority of cases of PVI was accompanied by a complicated course of malaria. The primary parvovirus infection can aggravate the course of malaria, especially when combined with other unfavorable conditions (iron deficiency, malnutrition, helminthic infections, co-infections, etc.). Thus, infection with PVB19 becomes a critical factor, which can provoke a severe life-threatening anemia, and also cause other complications.</p></abstract><trans-abstract xml:lang="ru"><p>Парвовирусная инфекция (ПВИ) широко распространена в мире: более 80% взрослого населения имеют антитела класса G к парвовирусу В19. Малярия — трансмиссивное паразитарное заболевание, вызываемое простейшим рода Plasmodium, широко распространенное в странах Африки, Юго-Восточной Азии, Океании. Целью работы было изучение влияния инфицирования парвовирусом В19 на клиническое течение малярии и исход основного заболевания. В период 2016–2018 гг. на наличие ДНК PVB19 исследованы образцы плазмы крови больных госпиталя префектуры Фрия Гвинейской Республики (ГР) с лабораторно подтвержденным диагнозом «малярия». Клиническое течение малярии у 316 обследованных пациентов оценивали как «простое» и «осложненное». В целом, ДНК PVB19 DNA была выявлена в плазме крови 55 из 316 пациентов (17,41±2,13%). Но в группе больных с коинфицированием PVB19 и P. falciparum осложненное течение малярии наблюдали у 40 из 55 (72,73±2,75%) пациентов, и в 6 из 55 случаев (10,91±4,40%) регистрировали летальный исход. В группе пациентов с малярией без коинфицирования парвовирусом В19 осложнения наблюдались у 99 из 261 пациента (37,9±3,0%); из них 2 (0,77±0,54%) умерли. Было обнаружено, что наиболее многочисленная группа в структуре больных малярией представлена детьми в возрасте до 5 лет (средний 3 года) (89, или 28,25±2,53%). Наши результаты коррелируют с данными других исследователей: среди детей в возрасте до 5 лет, проживающих в районах, эндемичных по малярии, абсолютное большинство случаев парвовирусной инфекции сопровождалось осложненным течением малярии. Парвовирусная инфекция, развивающаяся в раннем детском возрасте, может усугублять течение малярии, особенно на фоне других неблагоприятных условий (дефицит железа, недоедание, гельминтные инвазии, коинфекции и пр.). При этом инфицирование PVB19 становится критическим фактором, который может провоцировать злокачественное течение анемии с угрозой для жизни, а также вызывать другие осложнения.</p></trans-abstract><kwd-group xml:lang="en"><kwd>parvovirus infection</kwd><kwd>DNA of parvovirus B19</kwd><kwd>Plasmodium falciparum</kwd><kwd>malaria</kwd><kwd>anemia</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>парвовирусная инфекция</kwd><kwd>ДНК парвовируса В19</kwd><kwd>Plasmodium falciparum</kwd><kwd>малярия</kwd><kwd>анемия</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>1. Лаврентьева И.Н., Антипова А.Ю. Парвовирус В19 человека — характеристика возбудителя и распространение обусловленной им инфекции // Инфекция и иммунитет. 2013. Т. 3, № 4. С. 311–322.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>2. Лаврентьева И.Н., Антипова А.Ю., Бичурина М.А., Семенов А.В. 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