Table 1.

Norovirus (NoV) Genotypes Identified during the 2 NoV Epidemic Seasons 2001 and 2002 in Infants With the First Infection of NoV Gastroenteritis

	Season 1	Season 2	Both years combined
Genotypes	No. (%)	No. (%)	No. (%)
GII-4	7 (22%)	33 (34%)	40 (31%)
GIIb	9 (28%)	24 (25%)	33 (26%)
Other genotypes combined:	16 (50%)	39 (41%)	55 (43%)
GII-1	3 (9%)	2 (2%)	5 (4%)
GII-2	1 (3%)	12 (13%)	13 (10%)
GII-7	8 (25%)	11 (12%)	19 (15%)
GI-2	1 (3%)	1 (1%)	2 (1%)
GI-3	1 (3%)	5 (5%)	6 (5%)
GI-4	2 (6%)	2 (2%)	4 (3%)
GI-6	0 (0%)	6 (5%)	6 (5%)
	32 (25%)	96 (75%)	128 (100%)