Acute infection of hepatitis B virus is diagnosed by:: (A) IgM antibody of Hbs Ag, (B) IgM antibody of Hbc Ag, (C) IgG antibody of Hbs Ag, (D) IgG antibody of Hbc Ag
Answer is B. Ans. is 'b' IgM antibody of HBcAg (Ref. November 2001, Micro, Harrison 17/e p 1943-44,1933-34 & 16/e, p 1823-24).