Abstract:
The article presents a weekly clinical-epidemiological and virological evolution of influenza, acute respiratory infections (ARI) of the upper
respiratory tract and severe acute respiratory infections (SARI) in the seasons of 2012-2013. Influenza has been detected mainly in people aged 15 to
64 with its regional distribution and a moderate impact on the health care system. The incidence of influenza in this season has been 7.5 times as much
as in the last season. The leading role of the influenza virus A(H1N1)pdm and B with the little involvement of the influenza virus A(H3N2) has been
established in the structure of the influenza epidemic. By the antigenic structure, the isolated in the Republic of Moldova influenza viruses have been
similar with the influenza viruses strains introduced in the influenza vaccine in 2012-2013 seasons. ARI morbidity beginning from the 40th week of 2012
was increasing, then it slightly reduced in the 1st week of 2013, and again there was its peak in the 8thweek of 2013 followed by a gradual reduction. ARI
have been registered in all the regions of Moldova. The highest morbidity level in the country has been registered in Balti and the lowest – in Briceni,
affecting mainly the children aged 0 to14. The level of ARI morbidity in the mentioned period has increased the epidemic threshold by 1.5 times in
comparison with the same period of the previous season. The SARI morbidity has been registered in all the administrative territories with the highest
level of morbidity in Balti and the lowest – in Dubasari, affecting both adults and children. The SARI morbidity level beginning from the 40th week of
2012 was increasing, reaching its peak in the 8thweek of 2013, then it reduced. The SARI morbidity during the evaluated period has been 1.3 times as
much as in the same period of the 2011-2012 seasons.
