Reduced Prevalence of HBsAg Variants following a Successful Immunization Program in China

Wolfgang Jilg, Heléne Norder, Mark Kane, Pierre Van Damme, Alex Vorsters, on behalf of the Viral Hepatitis Prevention Board Institute for Medical Microbiology and Hygiene, University of Regensburg, Regensburg, Germany; Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden; 4816 W. Mercer Way, Mercer Island, Washington, USA; Vaccine and Infectious Disease Institute, University of Antwerpen, Antwerp, Belgium