Mathematical modeling and numerical calculation of an epidemic with medical vaccination in accountDavron Ziyadullaev, Dilnoz Muhamediyeva, Mukhammadyahyo Teshaboyev, Sherozbek To'ychiev, Mirzaakbar O. Kamolov, Yulduz Bakhramova and Gulchiroy ZiyodullaevaE3S Web Conf., 419 (2023) 02004DOI: https://doi.org/10.1051/e3sconf/202341902004