The spread of blood parasitic diseases in dogs in Barnaul city N.V. Tikhaya, N.M. Ponamarev, M.Yu. Novikova, Yu.N. Fisenko and S.L. Plotnikova E3S Web Conf., 282 (2021) 03005 Published online: 05 July 2021 DOI: 10.1051/e3sconf/202128203005