The Influenza Situation in the World and the Epidemic in Russia in Season 2016 - 2017

Abstract

Analysis of the situation for influenza in the world are drawn according to data published on the websites of the WHO, and the epidemic 2016 - 2017 in Russia - database «Research Influenza Institute» on the weekly morbidity, hospitalization, deaths from influenza in 61 observed the city. The influenza epidemic 2016 - 2017 started early, the duration of its in cities and in the country was longer and higher was the incidence of influenza and ARI in the cities and in the country than in the epidemic 2015 - 2016. But the epidemic of influenza A(H3N2) 2016 - 2017 there was less incidence morbidity at the peak, the frequency of hospitalization and, especially, mortality from influenza in the total population by 20 times, and in all age groups, especially among persons older than 65 years by 17.5 times, compared to the epidemic 2015 - 2016, caused by the pandemic virus influenza A(H1N1)pdm09. The peculiarities of the epidemic 2016 -17 according to the Federal districts, first of all, the absence of a second rise in the incidence of influenza in the South of Russia. The intensity of the epidemics of influenza A(H3N2) seasons 2016 - 17 and 2014 - 2015 - was average, and the epidemic A(H1N1) pdm09 2015 - 2016 - high. The case fatality rate in epidemics involving the influenza A(H3N2) remains significantly lower than in the epidemic caused by the pandemic virus influenza A(H1N1)pdm09.