IgM anti‐HBc in anti‐HBe positive chronic type B hepatitis with acute exacerbations
Kazuhiko Koike, Shiro Iino, Kiyohiko Kurai, Keiji Mitamura, Yasuo Endo, Hiroshi Oka – 1 May 1987 – IgM anti‐HBc was measured by radioimmunoassay in serially collected serum samples during 20 acute exacerbations which developed in 14 patients with anti‐HBe positive chronic type B hepatitis. IgM anti‐HBc became positive in 12 of the 14 (86%) patients and in 18 of the 20 (90%) exacerbations, and elevation of IgM anti‐HBc which was believed to be significant was also observed in the remaining two patients.