A molecular analysis of viral persistence in surface antigen‐negative chronic hepatitis B
J Kato, K Hasegawa, N Torii, K Yamauchi, N Hayashi – 1 March 1996 – To identify the mechanisms of viral persistence in patients with chronic hepatitis B after the acquisition of anti‐hepatitis B surface antigen antibodies (antiHBs), we serially analyzed the nucleotide sequence of the envelope region in a cohort of infected patients. Four patients with histological diagnoses of chronic hepatitis B who had at least 5 years of observance by our hospital staff were studied.