TY  - JOUR
T1  - Erythromycin Resistance Group A Streptococcus Associated with Acute Tonsillitis and Pharyngitis
AU - , Roya Ghasemian AU - , Narges Najafi AU - , M. Reza Shariatzadeh 
JO  - International Journal of Tropical Medicine
VL  - 2
IS  - 4
SP  - 118
EP  - 122
PY  - 2007
DA  - 2001/08/19
SN  - 1816-3319
DO  - ijtmed.2007.118.122
UR  - https://makhillpublications.co/view-article.php?doi=ijtmed.2007.118.122
KW  - Pharyngitis
KW  -Group A streptococci
KW  -erythromycin resistance
KW  -acute tonsillitis
AB  - Group A streptococci is the most important causative agent of tonsillo-pharyngitis. Erythromycin is drug of choice in<SUP> </SUP>patients who are allergic to  -lactams. The aim of this study was to determine the prevalence of streptococcus pyogenes resistant to erythromycin and other commonly prescribed antimicrobial agents. This prospective study conducted in Mazandaran province teaching hospitals. Patients with fever and tonsillo-pharyngitis were enrolled: Throat culture was obtained at the time of admission. Antimicrobial susceptibility test was done. All 85 isolates of streptococcus pyogenes were sensitive to penicillin, amoxicillin, cephalexin. and clindamycin however 3 cases had poor response to penicillin therapy. The resistance rate to erythromycin, tetracycline and ceftriaxone were 28, 46 and 3.5%, respectively.
ER  -