Written by the Fiveable Content Team • Last updated September 2025
Written by the Fiveable Content Team • Last updated September 2025
Definition
Cardiobacterium hominis is a Gram-negative, facultatively anaerobic bacterium that is part of the HACEK group of organisms. It is known to cause endocarditis, an infection of the heart valves.
5 Must Know Facts For Your Next Test
Cardiobacterium hominis primarily causes endocarditis, especially in individuals with underlying heart conditions.
It is a slow-growing organism and can be difficult to culture in standard laboratory settings.
Part of the HACEK group, which are a common cause of culture-negative endocarditis.
Typically colonizes the upper respiratory tract but can enter the bloodstream through dental procedures or other mucosal disruptions.
Treatment often involves prolonged antibiotic therapy, commonly using beta-lactams or aminoglycosides.