6. The most serious infection is

A. superinfection of an HBsAg carrier by HDV
B. infection with HBV alone
C. coinfection of HBVand HDV
D. none of the above

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7. Which of the following specimens contain/s hepatitis B virus in an infected person?

A. Blood
B. Semen
C. Saliva
D. All of these

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8. Vertical transmission may be seen in

A. Hepatitis B virus
B. Hepatitis C virus
C. Hepatitis D virus
D. All of these

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9. Which of the following viral infections can result in chronic carrier state?

A. HBV
B. HCV
C. HDV
D. All of these

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10. Most reliable test for detection of hepatitis E infection is

A. ELISA test for IgM anti-HEV
B. Western blot assay for IgM anti-HEV
C. Polymerase chain reaction for detection of HEV RNA
D. ELISA test for IgG anti-HEV

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