Ramia S, el-Hazmi M A, Vivian P A, Waller D K, Mushahwar I K, Frösner G G
Trans R Soc Trop Med Hyg. 1987;81(2):317-8. doi: 10.1016/0035-9203(87)90251-3.
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.
