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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
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Which of the following organism is known to cause endocarditis?
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The correct answer is  Most common organisms known to cause endocarditis are staphylococcus, viridans streptococcus, and HACEK. HACEK includes Haemophilus, Actinobacillus, Cardiobacterium, Eikenella, and Kingella; Haemophilus aphrophilus and Actinobacillus. Oral cavity, skin and respiratory tract are the primary poal of entry of staphylococcus, viridans streptococcus, and HACEK. S bovis originates from the GIT, where it is associated with polyps and colonic tumors. Enterococci enters bloodstream from the genitourinary tract. Healthcare associated NVE, is commonly caused by Staphylococcus aureus, coagulase-negative staphylococci and enterococci. Ref : Karchmer A.W. (2012). Chapter 124. Infective Endocarditis. In D.L. Longo, A.S. Fauci, D.L. Kasper, S.L. Hauser, J.L. Jameson, J. Loscalzo (Eds),Harrison's Principles of Internal Medicine, 18e.