title: Subtype and transmission of hepatitis B virus in two closed institutions.
mesh_terms: D000293:Adolescent; D000328:Adult; D002353:Carrier State; D004314:Down Syndrome / Q000150:complications / Q000276:immunology*; D005260:Female; D006509:Hepatitis B / Q000150:complications / Q000276:immunology*; D006511:Hepatitis B Antigens / Q000032:analysis*; D006518:Hepatitis Viruses / Q000276:immunology; D006782:Hospitals, Special; D006801:Humans; D005779:Immunodiffusion; D007122:Immunoelectrophoresis; D008297:Male; D008875:Middle Aged
chemical_list: D006511:Hepatitis B Antigens