ANTI HEPATITIS A VIRUS (HAV)-TOTAL Detail

The Anti-HAV Total test is a blood test that detects both IgM and IgG antibodies against the Hepatitis A Virus (HAV). This test is used to determine whether a person has a current or previous HAV infection, or if they have developed immunity from a past infection or vaccination.

Interpretation:

• A positive Anti-HAV Total with negative IgM indicates past infection or immunity (either from recovery or vaccination).

• A positive Anti-HAV Total with positive IgM suggests a recent or active infection.

• A negative result means the individual is susceptible to infection and has no immunity.

This test is useful for:

• Screening before or after Hepatitis A vaccination

• Epidemiological studies or outbreak investigations

• Travelers to HAV-endemic regions

• Evaluating liver inflammation or abnormal liver function tests

HAV is transmitted via the fecal-oral route, and while the infection is usually acute and self-limiting, knowing one’s immune status helps guide vaccination and prevention strategies.