Discover and read the best of Twitter Threads about #Arcanobacterium

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Weekend Digest

Name the pathogen

5 Clues
1. Gram-positive bacillus
2. Exudative #pharyngitis
3. #Scarlatiniform rash
4. Tolerance to #penicillin
5. Treat with #erythromycin Image
2/
#Arcanobacterium #haemolyticum

Gram + bacillus

Clinical: mild respiratory illness to a diphtheria-like disease.

Pharyngitis indistinguishable from Streptococcus pyogenes (Gram + coccus)

Many patients have blanching, erythematous, maculopapular “scarlatiniform” rash!
3/
#Arcanobacterium #haemolyticum is generally susceptible to penicillin, cephalosporin, carbapenem, macrolide, clindamycin, glycopeptide, gentamicin, ciprofloxacin, but resistant to TMP-SMX.

Tolerance to penicillin has been reported!

doi.org/10.1093/infdis…
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