<prompt> A 45 day old infant developed icterus and two days later symptoms and signs of acute liver failure appeared. Child was found to be positive for HbsAg. The mother was also HBsAg carrier. The mothers hepatitis B serological profile is likely to be:HbsAg positiveHbsAg and HbeAg positivityHbsAg and anti-Hbe antibody positivityMother infected with mutant HBV  <response>: Most impoant risk factor that determines perinatal transmission of Hepatitis B is HBeAg HBsAg carrier mothers who are HBe Ag positive almost invariably 90 transfer infection to their offspring. 