Hepatitis A virus is best diagnosed by______________?
Correct answer: A. IgM antibodies in serum
- A. IgM antibodies in serum
- B. Isolation form stool
- C. Culture from blood
- D. Isolation from bile
Explanation
Acute hepatitis A is best confirmed by detecting anti-HAV IgM in serum, which appears early in infection. HAV is not routinely diagnosed by culture because it is difficult to grow in standard laboratory systems.
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