Beta-lactam failure in treatment of two group G Streptococcus dysgalactiae subsp. equisimilis Pharyngitis patients.
We present two cases of exudative pharyngitis due to Streptococcus dysgalactiae subsp. equisimilis, Lancefield group G. While the participation of this organism as an agent of pharyngitis is well documented, we focus on failure of beta-lactam therapy, a phenomenon that is well described for pharyngitis due to Streptococcus pyogenes. Therefore, these case reports add to our knowledge of pharyngitis caused by non-S. pyogenes streptococci.
Unità Operativa Complessa di Microbiologia e Virologia Clinica, Dipartimento di Ematologia e Medicina Trasfusionale, Ospedale Civile Spirito Santo, via Fonte Romana 8, 65100 Pescara, Italy. vincsavi@yahoo.it
Vincenzo
V
Savini
Chiara
C
Catavitello
Marzia
M
Talia
Assunta
A
Manna
Franca
F
Pompetti
Giovanni
G
Di Bonaventura
Nicola
N
Di Giuseppe
Fabio
F
Febbo
Andrea
A
Balbinot
Silvia
S
Di Zacomo
Francesca
F
Esattore
Domenico
D
D'Antonio
D000328:Adult; D000658:Amoxicillin / Q000627:therapeutic use*; D000900:Anti-Bacterial Agents / Q000627:therapeutic use*; D017291:Clarithromycin / Q000627:therapeutic use; D005260:Female; D006801:Humans; D008297:Male; D008826:Microbial Sensitivity Tests; D010612:Pharyngitis / Q000188:drug therapy* / Q000382:microbiology; D013290:Streptococcal Infections / Q000188:drug therapy* / Q000382:microbiology; D013291:Streptococcus / Q000145:classification / Q000187:drug effects / Q000302:isolation & purification*; D016896:Treatment Outcome; D018440:beta-Lactam Resistance
D000900:Anti-Bacterial Agents; D000658:Amoxicillin; D017291:Clarithromycin