| antibody against hepatitis a in saudi arabians and in expatriates from various parts of the world working in saudi arabia. | the age-specific rate of exposure to hepatitis a virus (hav) was studied in 1015 native saudi arabians (504 males, 511 females) from the riyadh area. the relatively high prevalence of antibody to hav (anti-hav) (38.6%) in children between 1 and 4 years of age indicates that infection is acquired early in life in the saudi arabian population. the prevalence of anti-hav was found to increase steadily so that by the age of 30 years 91.0% of saudi arabians have anti-hav. the prevalence in adult saud ... | 1986 | 3009629 |