A total of 941 screening tests for HBV antigen and antibody were done. These included 342 male adults, 492 female adults and 107 children under 15 years. Most of them had no clinical symptoms. There were 18 cases of active hepatitis of various causes. Percentage of positive for HBsAg: adult male 12.3%, adult female 6.5%, children under 15 years 1.9%, overall 8.1%. Percentage of positive for anti-HBs antibody: 18.5%.
Study site: private laboratory, Kuching, Sarawak, Malaysia