Whatstack
Blood tests

Hepatitis A Antibody (IgG)

Specialist

also —

What it isAn antibody indicating immunity to hepatitis A, either from vaccination or past infection.

DoesConfirms protection against hepatitis A.

GoodPositive result confirms immunity.

BadNegative result indicates susceptibility — vaccination recommended for travelers and those in food-handling occupations.

Standard
Positive = immune.
Optimal
Positive if vaccinated (higher is good)
Modifiers
Lifelong after vaccination or recovery.

How to optimize

Lifestyle
Good hand hygiene; safe food handling when traveling.
Diet
—
Supplements
—
Peptides
—
Drugs
Hepatitis A vaccine if not immune.

within Infections