00726naa#a2200193#i#450# EN\\bibl\86074 20241003140827.4 2072-9502 20240729b2024####ek#y0engy0150####ca RU Mathematical modeling of statistical data on the incidence of new coronavirus infection, taking into account the stratification by concomitant diagnoses Journal article Astrakhan Astrakhan State Technical University 2024 11 с. Journal article local Теория эпидемий. 519.218.28 Borovsky Andrei Viktorovich Galkin Andrey Leonidovich Kozlova Svetlana Sergeevna vestnik.astu.org