What level of anti HBs is protective?

For hepatitis B surface antibody (anti-HBs), a level less than 5 mIU is considered negative, while a level more than 12 mIU is considered protective. Any value between 5 and 12 mIU is indeterminate and should be repeated.

What is the normal hepatitis b titer?

The generally accepted titer level associated with the minimal level of protection against HBV is 10 International Units/L, although this is debatable. A titer level between 10 and 100 International Units/L may be an indication for revaccination of immunocompromised patients.

What does indeterminate hep b test mean?

Indeterminate results, defined as anti-HBs levels in the range from 5 to 11.9 mIU/mL, indicate inability to determine if anti-HBs is present at levels consistent with recovery or immunity. Repeat testing is recommended in 1 to 3 months.

Is hepatitis B antibody good?

A positive anti-HBs (or HBsAb) test result means you are “immune” and protected against the hepatitis B virus and cannot be infected. You are not infected and cannot spread hepatitis B to others.

How many Hep B antibodies do I need?

Antibody responses to hepatitis B vaccine vary widely between individuals. 10-15% of adults fail to respond, or have a poor response. It is preferable to achieve anti-HBs levels above 100 mIU/mL. However, levels of 10 mIU/mL or more are generally accepted as enough to protect against infection.

What is a positive anti-HBs?

anti-HBs or HBsAb (Hepatitis B surface antibody) – A “positive” or “reactive” anti-HBs (or HBsAb) test result indicates that a person is protected against the hepatitis B virus. This protection can be the result of receiving the hepatitis B vaccine or successfully recovering from a past hepatitis B infection.

What is anti-HBs positive?

The anti-HBS positive value, which indicates that the person is protected against hepatitis B virus for life, may be developed by vaccination method or due to infection.

What does low hepatitis B mean?

Answer. This means that you are susceptible (can catch) hepatitis B. Often these words are used when the blood tests for hepatitis B do not show reactive, or levels of, hepatitis B surface antibody (sAb). Ideally a person would be vaccinated in this case, to acquire protection against hepatitis B.