411 REFERENCE · Wikibooks
ID Board Review/Bacterial Diseases/HACEK Organisms
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This is a group of fastidious, Gram-negative bacilli that can cause Infective Endocarditis. Because of their fastidious nature, they often require a longer period of time to grow on culture media and are held for 10 days (instead of the usual 5 days).
Haemophilus spp
Aggregatibacter actinomycetemcomitans
Cardiobacterium hominis
Eikenella corrodens
Kingella kingae