TABLE 1.

Aerobic organisms isolated from the cores of excised tonsils from 40 children

Organism	No. of isolates (no. of BLPB)		Exact P value (P value for BLPB)
	Penicillin group (n = 20)	Cefdinir group (n = 20)
Gram-positive cocci
Streptococcus pneumoniae	2	0	0.490
alpha-Hemolytic Streptococcusa	6	15b	0.01 (0.014)
gamma-Hemolytic Streptococcus	8	14	0.111
beta-Hemolytic Streptococcus
Group A	11	3b	0.019
Group C	1	1	1.0
Group F	1	0	1.0
Staphylococcus aureus	13 (13)c	1 (1)b	0.0001 (0.0001)
Staphylococcus epidermidis	3 (1)	2 (0)	1.0
Gram-negative cocci
Moraxella catarrhalis	8 (7)	2 (2)	0.648 (0.127)
Gram-positive bacilli
Diphtheroid species	1	2	1.0
Gram-negative bacilli
Haemophilus influenzae
Type b	4 (2)	0 (0)	0.106 (0.487)
Non-type b	11 (7)	2 (1)b	0.006 (0.044)
Haemophilus parainfluenzae	2 (2)	0 (0)	0.487
Eikenella corrodens	2	1	1.0
Pseudomonas aeruginosa	1 (1)	0 (0)	1.0 (1.0)
Total	74 (33)	45 (4)

^aNumbers of strains inhibiting GABHS were 2 and 10 for the penicillin and cefdinir groups, respectively.

^bStatistically significant P value.

^cNumber of BLPB in parentheses.