Arcanobacterium haemolyticum
Arcanobacterium haemolyticum is a bacterial species that is known to cause infections in humans. It is a Gram-positive, catalase-negative, beta-hemolytic organism that is often misidentified as a streptococcal infection due to its similar clinical presentation.
History[edit | edit source]
The bacterium was first isolated in the 1940s from soldiers with sore throats and skin infections. It was initially classified as a Corynebacterium, but was later reclassified as Arcanobacterium haemolyticum due to its unique characteristics.
Clinical Presentation[edit | edit source]
Infections caused by Arcanobacterium haemolyticum often present with symptoms similar to those of streptococcal infections, including fever, sore throat, and skin infections. However, unlike streptococcal infections, Arcanobacterium haemolyticum infections often present with a rash that is more commonly associated with viral infections.
Diagnosis[edit | edit source]
Diagnosis of Arcanobacterium haemolyticum infection is often complicated by its similar presentation to streptococcal infection. However, the bacterium can be identified by its unique hemolytic pattern on blood agar, as well as its resistance to bacitracin.
Treatment[edit | edit source]
Treatment for Arcanobacterium haemolyticum infection typically involves antibiotic therapy, with penicillin being the drug of choice. However, some strains of the bacterium have been found to be resistant to penicillin, necessitating the use of alternative antibiotics such as erythromycin or clindamycin.
See Also[edit | edit source]
Arcanobacterium haemolyticum Resources | |
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Contributors: Prab R. Tumpati, MD