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Your Hepatitis B surface antibody level is above the protective threshold. This means your immune system is ready to fight off Hepatitis B infection.
You have no detectable immunity to Hepatitis B. This means you've never been vaccinated (or the vaccine didn't take) and never had a natural infection that produced immunity. You are fully susceptible to Hepatitis B infection.
Get vaccinated against Hepatitis B immediately. It's a 3-dose series that provides lifelong protection. This is especially important for healthcare workers and those at risk.
HBsAb: {{value}} {{unit}} — critically low / non-immuneYour Hepatitis B antibody level has dropped below the protective threshold of 10 mIU/mL. Vaccine-induced immunity can wane over time, particularly in people vaccinated in childhood.
Speak to your doctor about a Hepatitis B booster dose to restore your immunity.
HBsAb: {{value}} {{unit}} — below protective thresholdYour Hepatitis B antibody level is just at or barely above the minimum protective threshold. This level may not provide reliable protection, especially in high-risk situations.
Discuss a booster dose with your doctor, particularly if you work in healthcare or are regularly exposed to blood.
HBsAb: {{value}} {{unit}} — borderline protective levelYour Hepatitis B surface antibody level is above the protective threshold. This means your immune system is ready to fight off Hepatitis B infection.
Good result. You have Hepatitis B immunity.
HBsAb: {{value}} {{unit}} — protective level confirmedYour Hepatitis B antibody level is strong, indicating robust immune protection against infection. Whether from vaccination or past natural infection, your immunity is solid.
Excellent result. No action needed.
HBsAb: {{value}} {{unit}} — strong immunityYour Hepatitis B antibody levels are very high, providing excellent protection against infection.
No action needed. You are very well protected.
HBsAb: {{value}} {{unit}} — high protective levelVery high HBsAb often occurs shortly after vaccination or in people who received the vaccine plus immune globulin. It indicates exceptional immunity.
No action needed. Your protection is very robust.
HBsAb: {{value}} {{unit}} — very high antibody levelAn very high HBsAb level can occasionally be seen after very recent vaccination or administration of Hepatitis B immunoglobulin. It is not harmful and indicates complete protection.
No action needed. You are maximally protected against Hepatitis B.
HBsAb: {{value}} {{unit}} — exceptionally high levelUpload your lab report and get your actual values interpreted in plain English — instantly, with no medical training required.