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Doctor insights on: Hepatitis B Virus Surface Antigen Can Be Used In A N

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Can a Hepatitis B test tell whether the antibodies detected are just from the virus' vaccine, or if they're also from an actual Hep B infection?

Can a Hepatitis B test tell whether the antibodies detected are just from the virus'  vaccine, or if they're also from an actual Hep B infection?

Yes: when testing for hepatitis b there are core and surface antibodies that are tested. Viewing the entire panel of results gives information if it is from the disease or vaccine ...Read more

Antigen (Definition)

Antigens are chemicals which upon exposure to the surface or inside of the body, will cause a reaction term allergic. Many substances will do this and allergic response is the basis for immunological protection for ...Read more


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When is the soonest that a Hepatitis B surface antigen test can detect the virus after exposure?

When is the soonest that a Hepatitis B surface antigen test can detect the virus after exposure?

Hep B surface Ag: It can take 30 to 150 days to develop symptoms of hepatitis B after you become infected. Hepatitis B surface antigens can be found in your blood within 12 weeks after the infection starts. They are one of the earliest signs of a hepatitis B infection. ...Read more

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Is it required to get both a hep b surface antigen and hep b surface antibody test for a hep b titer?

Is it required to get both a hep b surface antigen and hep b surface antibody test for a hep b titer?

Ag looks for virus: Unless checking to see if recently exposed, the hbsab is what the body makes in response to seeing the outer surface (/shell) of the hep b virus, so they can attack if ever see the virus. Should only need the ab test for titer / to confirm vaccine "take.". ...Read more

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Can the hep b vaccine cause a reactive antibody result on a hep d test?

Can the hep b vaccine cause a reactive antibody result on a hep d test?

No: You may acquire delta agent (hep d) at the same time you are infected with hepatitis b but the vaccine will not show an antibody titer to this other virus. ...Read more

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Does a hEPATITIS B SURFACE ANTIGEN W/REFL CONFIRM mean you have the virus?

Does a hEPATITIS B SURFACE                        ANTIGEN W/REFL CONFIRM mean you have the virus?

It sounds like it: I'm not entirely certain about the terminology you report but I would interpret what you have given as confirming that the specimen is positive for hepatitis B surface antigen (a confirmation of which was done "reflexly" when initial test looked positive). This indicates the presence of the active hepatitis B virus and suggests the presence of infectivity. Discuss next steps with your doctor! ...Read more

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Did hepatitis b infect another person through mouth kissing, ?If the other is a chronic carrier ..Im confused as IG mucous contains this virus or not

Did hepatitis b infect another person through mouth kissing, ?If the other is a chronic carrier ..Im confused as IG mucous contains this virus or not

Unclear: Hep b is not by oral/fecal route transmission like hep a. The virus is present in the saliva but whether it can be transmitted by ingestion is unclear. It can be transmitted if there are open areas or sores in the mouth while deep kissing, like in those with braces. ...Read more

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Can hep c live outside of blood? If i wash off contaminated blood off a surface can there still be the hep c virus present? If so can it transfer from object to object? My main question is, can hep c live ouside of blood onve a person bleeds it out?

Can hep c live outside of blood? If i wash off contaminated blood off a surface can there still be the hep c virus present? If so can it transfer from object to object? My main question is, can hep c live ouside of blood onve a person bleeds it out?

NO: Is the short answer. Viruses live in cells and cannot survive outside of human tissues for more than a very brief time. You get hep c by direct transfer of blood or tissue to another individual, most commonly by needle use. ...Read more

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Can someone with no hepatitis b or c creates the virus..Hw is this virus created?

Can someone with no hepatitis b or c creates the virus..Hw is this virus created?

Replication: These viruses replicate and are transferred from person to person, often through blood or other body fluids. They do not spontaneuosly generate. They also aren't passed by casual contact (touching) or by coughs or sneezes. ...Read more

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Normal liver function, should need to treat? I was a hepatitis b virus carriers. What drugs can clear the hepatitis b virus.

Normal liver function, should need to treat? I was a hepatitis b virus carriers. What drugs can clear the hepatitis b virus.

Doubtful: Asymptomatic carriage of hep b is common, although some hepatologists would recommend biopsy to be certain that the status of the disease is proven. There are several antivirals (lamivudine, adefovir, tenofovir, telbivudine, and entecavir), and immune system modulators (interferon Alpha 2a, and peg if Alpha 2a) which can be used in therapy, but your hepatologist would explain these effectively. ...Read more

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Is it possible for the hepatitis b surface antibody to decrease over time from reactive to non-reactive?

Is it possible for the hepatitis b surface antibody to decrease over time from reactive to non-reactive?

Yes: Yes, that can happen, in which case you might need additional vaccination. Once positive, i generally recheck the hbsab every 5-10 years. ...Read more

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If a person has hep c antibodies but a undetectable PCR is it gone or can it be in the body dormant? Can it reactivate?

If a person has hep c antibodies but a undetectable PCR is it gone or can it be  in the body dormant? Can it reactivate?

Either is possible: Positive anibody test for Hepatitis C indicates only oast exposure. Negative PCR means the virus is undetectable which means it is inactive for the time being but with no guarantee that it had completely disappeared ...Read more

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Can chronic hep b with hbeag negative nd persistent ALT hbsag, DNA be called active carrier. Can it be functionally cured to inactive.Infected at 16?

Can chronic hep b with hbeag negative nd persistent ALT hbsag, DNA be called active carrier. Can it be functionally cured to inactive.Infected at 16?

Definitions changing: As a new hepatitis patient, i'm glad you're learning about your disease, which is very serious but is usually manageable if you comply. Older definitions of "active carrier" focused on lack of e-antibody; newer definitions may include presence of serum markers for fibrosis and inflammation and viral load regardless of e-status. The key is to seek to be treated aggressively in hope of good outcome. ...Read more

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Can HIV be cured because i think so because i found out that hepatitis b which is a viral STD can be cured which HIV is also viral . ?

Can HIV be cured because i think so because i found out that hepatitis b which is a viral STD can be cured which HIV is also viral . ?

No cure for HIV: Most viruses are cured by the immune system, and a few can be cured with drugs. Hepatitis B is one of these; in most people the immune system clears it up and drug treatment often is effective as well. Unfortunately, HIV is not such a virus. It can be suppressed with treatment, and most people now can expect to live nearly normal lives. There is hope for a cure someday, but not yet. ...Read more

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Hepatitis b antibody.Standard 5 item HBV test, only HBV surface antibody present. How immune is this to a partner of HBV carrier status through sex?

Foolish: If someone is actively and acutely infected with hep b, even the idea of considering unprotected sexual intercourse is ridiculous. Just because immunization status shows immunity to hep b, this is not a 100% guarantee and there are still risks. ...Read more

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Is it possible for the hepatitis b surface antibody to go from reactive to nonreactive?

Is it possible for the hepatitis b surface antibody to go from reactive to nonreactive?

Yes: It is possible though the clinical consequences of the change is not entirely clear. One may still harbor immunity. ...Read more

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If HBV DNA virus is supressed in chronic hepatitis b then we have a chance of liver complication?

If HBV DNA virus is supressed in chronic hepatitis b then we have a chance of liver complication?

Yes: yes, it is possible. majority of people's bodies are able to fight off Hep B, but if the immune system has not done the job, then low levels can remain dormant and tend to resurface/replicate with stressful situations-being mental stress, severe physical trauma or immune stress. should have regular liver function tests for monitoring. ...Read more

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How small is the so called "small" risk of acquiring something bad from hepatitis b immune globulin (hbig) used as HBV pep (blood-derived product)?

How small is the so called "small" risk of acquiring something bad from hepatitis b immune globulin (hbig) used as HBV pep (blood-derived product)?

Very very small: Modern treatment of Immune Globulin products has pretty much eliminated fear for hepatitis or hiv. However one is always concerned over prion which is a particle not degraded by alcohol or heat and can cause a severe neurologic condition. However I have not heard of a single case of this condition induced by immune globulin. Thus there is a risk which is as remote as being struck by lightning. ...Read more

Virus (Definition)

A virus is a small infectious agent that can replicate only inside the living cells of an organism. Viruses can infect all types of organisms, from animals and plants ...Read more


Dr. Anne Larson
1,058 doctors shared insights

Hepatitis B (Definition)

A serious liver infection caused by the hepatitis B virus that's easily ...Read more