Table 1.
Socio-demographic data of individuals included in the cross-sectional and longitudinal samples.
Table 2.
Seroprevalence of naturally acquired anti-HAV antibodies in the cross-sectional samples from 1995 and 2003.
Figure 1.
Estimated age-specific risk (95% confidence intervals) of HAV infection based on cross-sectional samples.
Solid circles represent estimates derived from the 1995 survey; open circles are estimates from the 2003 data.
Figure 2.
Estimated age-specific risk (95% confidence intervals) of HAV infection in 1995 from cross-sectional and longitudinal samples.
The solid circles represent estimates derived from the cross-sectional 1995 survey and open circles the estimates from the longitudinal data.
Figure 3.
Age-specific seroprevalence, GMC and maximum values of anti-HAV antibodies in the 2003 cross-sectional sample.
The shaded bars (upper scale) represent seroprevalence rates; the diamonds (lower scale) indicate GMC with lines representing 95% confidence intervals. * The seroprevalence of the 6–11 months old children is entirely due to maternal anti-HAV antibodies (see Table 2). ** The maximal concentration of 13700 mIU/mL was caused by one recent HAV infection. Three other anti-HAV positive children in this group had maternal anti-HAV with concentrations of 26, 28 and 31 mIU/ml (see Table 2).