The impact of vaccination against influenza and pneumococcal infection on the incidence of acute respiratory viral infections and community-acquired pneumonia in the Central Administrative District of Moscow

Background. Acute respiratory viral infections (ARVI) and pneumococcal infections (PI) annually cause great damage to the health and working capacity of the population, and lead to economic losses for employers and the state. Aim. To study the impact of influenza and PI vaccination coverage on morbidity of ARVI and community-acquired pneumonia (CAP) of the morbidity of population in Central administrative district (CAD) of Moscow. Material and methods. The analysis of official data on monitoring of morbidity from ARVI and CAP was carried out, and information on vaccination of the population against influenza and PI for 2012–2018 was used. Results. In 2018 ARVI accounted for 95.2% of infectious morbidity and the incidence rate was 29853.5 per 100 ths population. Over the period from 2012–2018, the incidence of ARVI and influenza gradually decreased by 2016, but in 2017 the incidence of ARVI was increased to the level of 2012 (+25.3%) however influenza was decreased (-40.9%). In 2018, the incidence of ARVI in adults remained at the level of 2017, and in children there was a decrease (-16.9%). The incidence of influenza in 2018 decreased in both adults (-65.4%) and children (-63.9%). During 2012–2018 the incidence of CAP had a persistent tendency to increase. The coverage of influenza vaccination in CAD population of Moscow has increased annually since 2012 and in 2018 reached 85.5% of children 0–17 years old and 65.5% of adults 18 years and older, and against PI – 46.3% of children and 2.6% of adults. Conclusion. The epidemic circulation of ARVI and influenza had a significant impact on the morbidity of CAD population of Moscow in 2012–2018. Annual vaccination of the population lead to decreasing of influenza incidence but the incidence of pneumonia tended to increase and need to improve prevention.