Table 3.

Nasopharyngeal colonizing bacterial spectrum in 2–60 month old children in the course of the study - number of specific strains per visit.

	Visit 1		Visit 2		Visit 3		Visit 4
	n	%	n	%	n	%	n	%
Subjects	n = 232		n = 216		n = 201		n = 154
S. pneumoniae	34	14.7	68	31.5	70	34.8	65	42.2
M. catarrhalis	24	10.3	58	26.9	67	33.3	38	24.7
H. influenzae	20	8.6	36	16.7	49	24.4	61	39.6
S. pyogenes	2	0.9	1	0.5	3	1.5	7	4.5