page_title: Subacute bacterial endocarditis
section_title: Causes
hierarchical_section_title: Subacute bacterial endocarditis / Causes
caption_attribution_description: English: Gram-stained smear of streptococci
context_page_description: Subacute bacterial endocarditis is a type of endocarditis. Subacute bacterial endocarditis can be considered a form of type III hypersensitivity.
context_section_description: It is usually caused by a form of Viridans group streptococcus bacteria that normally live in the mouth (Streptococcus mutans, mitis, sanguis or milleri).
  Other strains of streptococci can cause subacute endocarditis as well. These include streptococcus intermedius, which can cause
  acute or subacute infection (about 15% of cases pertaining to infective endocarditis).
  Enterococci from urinary tract infections and coagulase negative staphylococci can also be causative agents.
caption: Streptococci
exif: {}