A5 year old boy is detected to be HBs Ag positive on two separate occasions during a screening program for hepatitis B. He is otherwise asymptomatic. Child was given three doses of recombinant hepatitis B vaccine at the age of 1 year. His mother was treated for chronic hepatitis B infection around the same time. The next relevant step for fuher investigating the child would be to -
Obtain 1-IBeAg and anti-HBe levels Obtain anti HBs levels Repeat HBsAg Repeat another course of Hepatitis B vaccine