title: Delta agent infection in Riyadh, Saudi Arabia.
abstract: Blood samples from 186 HBsAg-positive Saudis and 42 HBsAg-positive Philippino blood donors were tested for anti-delta using the radioimmunoassay technique. The high prevalence of anti-delta in Saudis with liver disease (32%) contrasted sharply with that in Saudis with illness other than liver disease (13%) and in apparently healthy Saudis (5.4%). Together with the high prevalence of anti-delta in Philippino blood donors (9.5%), these results suggest that foci of endemic delta infection other than Italy probably exist.
mesh_terms: D005260:Female; D006508:Hepatitis Antibodies / Q000032:analysis; D003699:Hepatitis D / Q000453:epidemiology* / Q000276:immunology; D003698:Hepatitis Delta Virus / Q000276:immunology; D006801:Humans; D008297:Male; D012529:Saudi Arabia
chemical_list: D006508:Hepatitis Antibodies