Assessing herd immunity influenza virus among residents of Yekaterinburg and Sverdlovsk oblast during epidemic periods of 2015-17
https://doi.org/10.25694/URMJ.2018.03.024
Abstract
Thе aim of this research was acomparative assessment of the herd immunity to epidemic and seasonal influenza virus strains in the epidemic periods of 2015-2016 and 2016-2017 in compliance with the results of a sampling research of the donated blood sera in Yekaterinburg and Sverdlovsk Oblast, the Russian Federation. Hemagglutination inhibition assay test was used to assess 817 samples for antibodies to A/ California/07/09(HlNlpdm09), A/HongKong/4801/14(H3N2) and В/Phuket/3073/13 influenza viruses. Index >1:40was considered a positive antibody titre. In the pre-epidemic period of 2015, the proportion of serapositive to A/California/07/09(HlNlpdm09) virus was 36.4%. In the pre-epidemic period of 2017, this proportion for A/Hong Kong/4801/14(H3N2) virus was 38,0%, in 2017 this proportion for A/California/07/09(HlNlpdm09) virus was 58,7%. The epidemic increases in the incidence caused by the corresponding current influenza virus serotypes in these years imply that prior to every epidemic season the herd immunity of the population was insufficient for the prevention of epidemics.
About the Authors
A. V. Alimov
ФБУН «Екатеринбургский НИИ вирусных инфекций» Роспотребнадзора
Russian Federation
Russian Federation
A. Yu. Markaryan
ФБУН Екатеринбургский НИИ вирусных инфекций» Роспотребнадзора
Russian Federation
Russian Federation
I. B. Vyalykh
ФБУН «Екатеринбургский НИИ вирусных инфекций» Роспотребнадзора
Russian Federation
Russian Federation
I. A. Malchikov
ФБУН «Екатеринбургский НИИ вирусных инфекций» Роспотребнадзора
Russian Federation
Russian Federation
Yu. V. Grigorieva
ФГБОУ ВО Уральский Государственный медицинский университет Минздрава России
Russian Federation
Russian Federation
E. N. Burnatova
Институт иммунологии и физиологии
Russian Federation
Russian Federation
I. P. Malchikova
ГБУЗ СО «ОСПК»
Russian Federation
Russian Federation
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Review
For citations:
Alimov AV, Markaryan AY, Vyalykh IB, Malchikov IA, Grigorieva YV, Burnatova EN, Malchikova IP. Assessing herd immunity influenza virus among residents of Yekaterinburg and Sverdlovsk oblast during epidemic periods of 2015-17. Ural Medical Journal. 2018;(3):115-117. (In Russ.) https://doi.org/10.25694/URMJ.2018.03.024
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