A 5 year old boy is detected to be HBsAg 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 further investigating the child would be to –
ARepeat another course of Hepatitis B vaccine
BRepeat HBsAg
CObtain HBeAg and anti-HBe levels
DObtain anti HBs levels
Which of the following viruses is considered a defective virus that requires another virus for its replication?
AHepatitis A virus (HAV)
BHepatitis B virus (HBV)
CHepatitis D virus (HDV)
DHepatitis C virus (HCV)
Which of the following is true about Hepatitis A virus?
ACauses chronic hepatitis
BHelps HDV replication
CCauses cirrhosis
DCommon cause of hepatitis in children
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