For citations:
Karpova L.S., Pelikh M.Yu., Popovtseva N.M., Stolyarova T.P., Volik K.M. Features of Epidemic Process of Influenza and its Etiology in the Countries of the Northern and Southern Hemispheres in the Period of Circulation of Pandemic Virus A(H1N1)pdm09 (According to WHO). Epidemiology and Vaccinal Prevention. 2019;18(6):15-25. (In Russ.) https://doi.org/10.31631/2073-3046-2019-18-15-25