What Is Hepatitis A (HAV) IgM?

What it is

IgM antibody to hepatitis A virus

Why it matters

Indicates acute hepatitis A infection; used in outbreak and travel screening.

Specimen

WB/S/P

Interpretation

Positive = recent HAV infection

Limitations

IgM timing affects sensitivity

Related test: HAV IgM Rapid Test — specimen: S / P

Frequently Asked Questions

What does HAV IgM positive mean? Acute hepatitis A infection.

Related knowledge

• Hepatitis hub