“…can cause various diseases, ranging from mild skin infections to necrotizing fasciitis, which can threaten the health of not only animals, but also humans (Belstrom et al, 2021). This genus consists of both commensal species that colonize the skin and nose, as well as pathogenic and opportunistic strains that can be isolated for various diseases: upper respiratory tract, pneumonia, meningitis, sepsis, otitis, ophthalmitis, hepatitis, endometritis, and aerosacculitis (Weiser et al, 2018; Chang et al, 2022). Some types of streptococci are one of the main colonizers and normal flora of the oral cavity -Streptococcus mitis and S. oralis, which protect it from inflammatory processes by producing hydrogen peroxide, neutralizing acids, and secreting antimicrobial compounds, competing with opportunistic and pathogenic microorganisms.…”