| age-specific seroprevalence of hepatitis a among school children in central tunisia. | hepatitis a virus (hav) has different epidemiologic and clinical patterns, depending on the level of endemicity in a given geographic area. tunisia is considered a region of high endemicity for hepatitis. improvement of socioeconomic conditions in this country has made a determination of the seroprevalence of this disease advisable. we assessed the seroprevalence of hav in sousse in central tunisia. a total of 2,400 school children 5-20 years of age (mean +/- sd age = 11.7 +/- 3.5 years) were se ... | 2005 | 16014829 |