epidemiologyЭпидемиология и ВакцинопрофилактикаEpidemiology and Vaccinal Prevention2073-30462619-0494«Numicom» LLC10.31631/2073-3046-2023-22-5-74-80epidemiology-1880Research ArticleПРАКТИЧЕСКИЕ АСПЕКТЫ ЭПИДЕМИОЛОГИИ И ВАКЦИНОПРОФИЛАКТИКИPRACTICAL ASPECTS OF EPIDEMIOLOGY AND VACCINE PREVENTIONЗаболеваемость корью в Южном Вьетнаме во время пандемии Covid-19The Incidence of Measles Infection in Southern Vietnam during COVID-19 Pandemichttps://orcid.org/0000-0002-3444-1360ХоанМ.HoangM.

Мин Хоан – научный сотрудник, отдел микробиологии и иммунологии

г. Хошимин

M. Hoang – Researcher, Department of microbiology and immunology

Ho Chi Minh City

hoangminh_bio@yahoo.comhttps://orcid.org/0000-0002-7763-535XАнтиповаА. Ю.AntipovaA. Yu.

Анастасия Юрьевна Антипова – к. б. н., научный сотрудник лаборатории экспериментальной вирусологии

+7 (812) 644-63-79

Anastassia Yu. Antipova – Cand. Sci. (Biol.), researcher, Laboratory of experimental virology

+7 (812) 644-63-79

anti130403@mail.ruhttps://orcid.org/0000-0002-2188-6547ЛаврентьеваИ. Н.LavrentievaI. N.

Ирина Николаевна Лаврентьева – д. м. н., ведущий н. с. лаборатории экспериментальной вирусологии

+7 (812) 644-63-79

Irina N. Lavrentieva – Dr. Sci. (Med.), leading researcher, laboratory of experimental virology

+7 (812) 644-63-79

pasteur.lawr@mail.ruhttps://orcid.org/0000-0002-5224-3771ЗарубаевВ. В.ZarubaevV. V.

Владимир Викторович Зарубаев – д. б. н., заведующий лаборатории экспериментальной вирусологии

+7 (812)644-63-79

Vladimir V. Zarubaev – Dr. Sci. (Biol.), Head of laboratory of experimental virology

+7 (812)644-63-7

zarubaev@gmail.comИнститут Пастера в ХошиминеВьетнамPasteur Institute of Ho Chi Minh CityViet NamФБУН «Санкт­Петербургский научно­исследовательский институт эпидемиологии и микробиологи имени Пастера»РоссияSt. Petersburg Pasteur InstituteRussian Federation2023101120232257480Copyright © Хоан М., Антипова А.Ю., Лаврентьева И.Н., Зарубаев В.В., 20232023Хоан М., Антипова А.Ю., Лаврентьева И.Н., Зарубаев В.В.Hoang M., Antipova A.Y., Lavrentieva I.N., Zarubaev V.V.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://www.epidemvac.ru/jour/article/view/1880

В работе представлены данные о случаях кори, выявленных в 18 провинциях Южного Вьетнама (ЮВ) в 2020 г. во время активной фазы пандемии нового коронавируса SARS-CoV2. Вирус кори активно циркулировал в ЮВ в первые месяцы 2020 г.: средний показатель заболеваемости корью составил 1,27 на 100 тыс. населения. В возрастной структуре преобладали дети в возрасте до 5 лет (71%). Абсолютное большинство заболевших – не вакцинированные против кори лица, а также лица, не имеющие сведений о прививках; совокупно их доля составила 97,4%, но среди заболевших были вакцинированные и ревакцинированные лица. Существенно чаще IgM-корь антитела регистрировали в образцах, полученных из г. Can Tho (n = 57), где расположен инфекционный госпиталь, принимающий больных из соседних областей ЮВ. Наибольшее количество случаев кори регистрировали также в провинциях Dong Thap (n=57), Hao Glang (n = 62) г. Хошимин (n = 15). То есть в эпидемический процесс кори прежде всего были вовлечены жители крупных городов, промышленных и медицинских центров. Показано резкое снижение заболеваемости корью с апреля 2020 г., когда в ЮВ были введены меры по ограничению распространения COVID-19. Следует отметить, что нарушение вакцинации, связанное с пандемией COVID-19, после отмены санитарно-эпидемиологических ограничений может привести к повышению заболеваемости и развитию вспышек кори во Вьетнаме и других вовлеченных в пандемию странах. Следовательно, для предотвращения будущих вспышек потребуется усиление мер надзора и контроля кори для достижения ее элиминации.

The paper presents data on measles cases identified in 18 provinces of South Vietnam (SV) in 2020, during the active phase of the pandemic of the new coronavirus SARS-CoV2. The measles virus actively circulated in SV in the first months of 2020: the average measles incidence rate was 1.27 per 100,000 population. Children under 5 years of age dominated in the age structure (71%). The vast majority of cases are people who have not been vaccinated against measles, as well as people who do not have information about vaccinations; in total, their share was 97.4%, but there were vaccinated and revaccinated individuals among the sick. Significantly more often, IgM-measles antibodies were recorded in samples obtained from the city of Can Tho, (n=57) where the infectious diseases hospital is located, receiving patients from neighboring regions of the SV. The largest number of measles cases were also recorded in the provinces of Dong Thap (n=57), Hao Glang (n=62) and Ho Chi Minh City (n=15). That is, residents of large cities, industrial and the medical centers were primarily involved in the measles epidemic process. A sharp decrease in the incidence of measles has been shown since April 2020, when measures to limit the spread of COVID-19 were introduced in SV. It should be noted that violations of vaccination associated with the COVID-19 pandemic, after the lifting of sanitary and epidemiological restrictions, may lead to increased morbidity and the development of measles outbreaks in Vietnam and other countries involved in the pandemic. Therefore, preventing future outbreaks will require strengthening measles surveillance and control measures to achieve its elimination.

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The authors declare that there are no conflicts of interest present.