<prompt> A thiy-year man presented with nausea, fever and jaundice of 5 days duration. The biochemical tests revealed a bilirubin of 6.7 mgd1 conjugated 5.0 mgdl with SGOT SGPT ASTALT of 1230900 IUmi. The serological tests showed presence of HBs Ag. IgM anti-HBc and Hbe Ag. The most likely diagnosis is:Chronic hepatitis B infection with high infectivity.Acute hepatitis B infection with high infectivityChronic hepatitis infection with low infectivity.Acute hepatitis B infection with low infectivity  <response>: Answer is B Acute hepatitis B infection with high infectivity: Presence of Anti HB IgM and Hbs Ag indicates acute infection. Presence of Hbe Ag indicates high infectivity 