Hepatitis E Virus IgG Antibody, Serum (Quantitative Immunoassay)

What This Test Measures

The test measures the presence of IgG antibodies specific to Hepatitis E virus. IgG antibodies are typically produced after an initial infection and remain in your system for a longer period. This indicates that your body has encountered the virus before, even if you no longer have active symptoms or virus in your blood.

Why It’s Done

Doctors may order this test if you have symptoms of liver disease, travel history to regions where Hepatitis E is common, or if you’re at risk for infection (e.g., due to contaminated water exposure). It can also be used to confirm past infection in individuals who have recovered from Hepatitis E.

How It’s Performed

A blood sample is drawn from a vein in your arm. The sample is sent to a lab where it is analyzed using an immunoassay method to detect the specific antibodies. This process typically takes a few days to complete.

What the Results Mean

A positive result means you likely had Hepatitis E in the past and developed IgG antibodies. A negative result suggests no detectable antibodies, meaning either you’ve never been exposed or the test was done too early after exposure. Results should be interpreted by your healthcare provider in the context of your medical history and symptoms.