TABLE 1.

Pneumococcal isolates with regard to study group and study phase

Phase	Total no. of isolates	PV group		CV group
		No. of isolates	% Vaccine-type strains	No. of isolates	% Vaccine-type strains
All	921	451		470
0 mo	180	96	46	84	58
7 mo	176	81	41	95	46
14 mo	186	84	26	102	40
20 mo	163	81	25	82	49
26 mo	119	64	26	55	54
First AOMa	97	45	24	52	44

^aAOM, acute otitis media.