Comparison of the Sensitivity and Specificity of the Elecsys ® HBsAg II Assay with other Available Assays in China for Detection of HBsAg J.D. Jia 1 , L. Wei 2 , X.X. Zhang 3 , Y.L. Mao 4 , L.L. Wang 5 , Z.L. Gao 6 , J.L. Hou 7 , J. Zhang 8 , W. Melchior 9 , W. Van der Helm 9, 10 1 Beijing Friendship Hospital, Beijing, China, 2 Beijing People Hospital, Beijing, China, 3 Ruijin Hospital, Shanghai, China, 4 Beijing 302 Hospital, Beijing, China, 5 West China Hospital, Chengdu, China, Guangzhou, China, 7 Guangzhou Nanfang Hospital, Guangzhou, China, 8 Shanghai Public Health Clinical Centre, China, 9 Roche Diagnostics Ltd, Rotkreuz, Switzerland, 10 Conclusions: In this patient population the prevalence of HBsAg positive and anti-HCV were much higher than reported in community studies. Genotypes 1 and 6 accounted for most of HCV. These very high rates of viral hepatitis in a hospital setting challenge to healthcare providers in terms of patient management as well as caregiver's prevention.