For citations:
Sizikova T.E., Lebedev V.N., Kutaev D.A., Borisevich S.V. The Characteristics of the Delta Variant of SARS-CoV-2 Virus – the Dominant Agent of the Third and Forth Waves of Epidemic COVID-19 in Russia. Journal of NBC Protection Corps. 2021;5(4):353-365. (In Russ.) https://doi.org/10.35825/2587-5728-2021-5-4-353-365. EDN: ajgima