Streptococcus Viridans Bacteria Microbiology Lecture

Streptococcus viridans is a group of Gram-positive cocci, including species like S. sanguis and S. mutans, associated with diseases such as subacute endocarditis and dental caries. These bacteria primarily inhabit the oropharynx and can enter the bloodstream during dental procedures, leading to complications like heart valve damage. Treatment typically involves antibiotics such as penicillin or ceftriaxone, with preventive measures recommended for patients with prosthetic heart valves.