Gram Staining for the Treatment of Peritonsillar Abscess

Table 4

Sensitivity of pathogens to penicillin.

	% of ampicillin sensitive strains
Gram-positive cocci
Steptococcus pyogenes	100	(10/10)
Anaerobic Gram-positive cocci
Anaerobic Streptococcus	92.3	(12/13)
Peptococcus	100	(1/1)
Anaerobic Gram-negative rods
Bacteroides	71.4	(5/7)
Fusobacterium	83.3	(10/12)
Prevotella	100	(11/11)
Porphyromonas	75	(3/4)