题目内容

Hepatitis E, a recently characterized hepatitis virus, is best described by which of the following statements?

A. It is not a threat to the blood supply
B. It is a major cause of blood-borne hepatitis
C. It is prevalent in North America
D. It is a single-stranded DNA virus
E. The disease resembles hepatitis C

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Infection with hepatitis D virus (HDV, delta agent) can occur simultaneously with infection with hepatitis B virus (HBV) or in a carrier of hepatitis B virus because HDV is a defective virus that requires HBV for its replicative function. What serologic test can be used to determine whether a patient with HDV is an HBV carrier?

A. HBsAg
B. HBc IgM
C. HBeAg
D. HBs IgM
E. HBs IgG

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