TABLE 1.

Age at acquisition and H. pylori status of five cases who acquired H. pylori infection during the follow-up period

Case no. (sex)	Age at infection (yr, mo)	HpSA (OD)	H. pylori IgG (E.V.a)	Culture (gastric juice)
1 (F)	1y2mo	1.330	1.3	+
2 (M)	1y5mo	2.5 <	1.5	+
3a (F)	1y6mo	0.136	3.5	+
3b (M)	1y8mo	0.124	4.3	+
4 (M)	4y4mo	0.863	3.9	+

^aE.V., EIA values.