Epidemiological characteristics of measles outbreaks in the Kemerovo Region – Kuzbass in 2024
Objective. Analysis of the dynamics of measles incidence in the Kemerovo Region-Kuzbass from 2013 to 2024 and characterization of outbreaks that occurred in 2024.Khokhlova Z.A., Novitskaya N.V., Sereda T.V., Bataeva M.E., Medvedeva N.V.
Materials and methods. Official statistics forms for measles incidence in the Kemerovo Region-Kuzbass, laboratory test reports from the Testing Laboratory Center of the Center for Hygiene and Epidemiology in Krasnoyarsk Krai, and authors’ own observational data from patients hospitalized at the V.V. Bessonenko Novokuznetsk City Clinical Infectious Diseases Hospital from measles epidemic foci in January–March 2024 were used. Patient serum was tested for the presence of measles virus antibodies and immunoglobulin class M using ELISA.
Results. An increase in measles incidence was found in the Kemerovo Region-Kuzbass in 2019 and 2023–2024. Sporadic and clustered cases were identified. The sources of infection were travelers from other regions and local residents returning from measles-affected areas. The cases predominantly affected unvaccinated children and adults under 45 years of age. It was shown that the 2024 outbreaks involved a large number of individuals, including healthcare workers. The diagnosis was laboratory-confirmed in 46 individuals. The number of contacts exceeded 2,000, and 90 individuals were vaccinated according to epidemiological indications.
Conclusion. The main reasons for the increased measles incidence were lack of vaccination and population migration. Young and middle-aged children and adults are susceptible to the disease. Healthcare workers need constant monitoring of their measles immunity and timely revaccination. Awareness-raising efforts regarding the benefits of immunization are required.
Keywords
measles
incidence
outbreak
unvaccinated
age distribution
antibodies
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About the Authors
Professor, Zinaida A. Khokhlova, MD, Head, Department of Infectious Diseases, Novokuznetsk State Institute for the Advanced Medical Training – Branch of the Russian Medical Academy of Continuous Professional Education, Ministry of Health of the Russia, Novokuznetsk, Russia; zinaidaxoxlowa@yandex.ru; https://orcid.org/0000-0001-7306-1849Nina V. Novitskaya, Lecturer, Department of Hygiene, Epidemiology, and Healthy Lifestyle, Novokuznetsk State Institute for the Advanced Medical Training – Branch of the Russian Medical Academy of Continuous Professional Education. Ministry of Health of the Russia; Epidemiologist, V.V. Bessonenko Novokuznetsk City Clinical Infectious Diseases Hospital, Novokuznetsk, Russia; novitskanv@yandex.ru; https://orcid.org/0009-0006-6982-355Х
Tatyana V. Sereda, Associate Professor, Department of Infectious Diseases, Novokuznetsk State Institute for the Advanced Medical Training – Branch of the Russian Medical Academy of Continuous Professional Education, Ministry of Health of the Russia, Novokuznetsk, Russia; stv11419@mail.ru; https://orcid.org/0000-0003-2859-3832
Marina E. Bataeva, Associate Professor, Department of Infectious Diseases, Novokuznetsk State Institute for the Advanced Medical Training – Branch of the Russian Medical Academy of Continuous Professional Education, Ministry of Health of the Russia, Novokuznetsk, Russia; bataeva_marina@mail.ru; http://orcid.org/0009-0001-8157-1010
Nina V. Medvedeva, Cand. Med. Sci., Head, Epidemiology Department, Center for Hygiene and Epidemiology in the Kemerovo Region – Kuzbass, Kemerovo, Russia; epid_medvedeva@mail.ru; https://orcid.org/0000-0002-5812-2997
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