Protective effect of inactivated hepatitis A vaccine against the outbreak of hepatitis A in an open rural community

Table 1 Hepatitis A incidence in vaccination and control groups

Group	No. of subjects	No. of cases	Incidence (1/100 000)
Vaccine	3365	0	0
Control	2572	4	155.5

Table 2 Anti-HAV sero-positive rate in the community of Honghe Town

	Age group (yr)							Total
	0-	5-	10-	20-	30-	40-	50-
Number of tested persons	8	19	97	136	160	71	41	532
Number of positive results	4	16	78	103	120	59	34	414
Positive rate (%)	50	84.2	80.4	75.7	75	83.1	82.9	77.8