© 1986 Oxford University Press
research-article |
The Distribution of the Subtypes of HBsAg in Ethiopia
The National Research Institute of Health Virology Section, PO Box 1242, Addii Ababa, Ethiopia.
Sera from various population groups in Ethiopia previously positive for hepatitis B surface antigen (HBsAg) have been investigated for their antJgentc sub-specificities. Subtype ad has been observed as the predominant subtype with 83% prevalence in the study population. The same subdeterminant of the HBshas been observed universally as the predominant subtype in Mood donors, in patients with acute hepatitis B and in one patient who was an asymptomatic chronic carrier of HBsAg. Subtype ay was observed in three of seven patients with chronic hepatitis B.