Take charge of your immunity with Scan4Health’s Anti-HBS Test—a crucial blood test for detecting antibodies against Hepatitis B surface antigen (HBsAg). This diagnostic helps determine if you’re protected after a previous infection or vaccination, guides your risk for future hepatitis B infection, and informs public health and clinical decisions. With Scan4Health’s rapid turnaround and expert reporting, you’ll have the answers you need for ongoing health and peace of mind.

• Routine Preparation: No fasting is needed unless your doctor has ordered additional tests.
• Medication Guidance: Make note of all medications and supplements, especially if you are on immunosuppressive therapy, have received recent vaccines, or have chronic diseases.
• Vaccination History: Bring records of any previous hepatitis B vaccinations or the date of last vaccine.
• Symptom/Health Background: Mention history of previous hepatitis B infection, high-risk exposures, or chronic liver illness.
• Procedure Comfort: Wear a shirt with sleeves that can be easily rolled up for a quick blood draw.

This test measures antibodies produced by the immune system against the hepatitis B surface antigen (HBsAg)—the virus's outer protein coat. These antibodies appear after successful vaccination or recovery from natural infection and signal immunity to hepatitis B. Anti-HBs is a marker of protection and is frequently used to confirm that the vaccine has “taken” or that a previous infection is resolved. Doctors recommend this test for high-risk individuals, healthcare workers, those with liver disease, travelers, or before pregnancy. It’s also ordered after vaccination to ensure protective immunity and to evaluate hepatitis B status in settings such as blood donation, immigration, or prenatal screening. In most cases, a positive result (anti-HBs >10 mIU/mL) means you are immune to hepatitis B and cannot contract or spread the virus. A negative result means no protective antibodies are present, and you may need vaccination, booster doses, or further testing if you are at risk.

Rely on Scan4Health for accurate hepatitis B immunity screening and guidance. Book your Anti-HBS Test today for a lifetime of knowledge and protection.