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A 32-year-old member asked:

what is meant by the australian antigen is positive?

1 doctor answer1 doctor weighed in
Dr. Joel Gallant
Infectious Disease 36 years experience
HBsAg: It's an old term for the hepatitis b surface antigen. Having a positive hbsag means that you have hepatitis b: either acute or chronic.

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Similar questions

CA
A 28-year-old male asked:

What is the definition or description of: antigen?

1 doctor answer2 doctors weighed in
Dr. Richard Bensinger
Ophthalmology 52 years experience
Immunoloigic chemica: 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 defense against invading organisms.
India
A 55-year-old male asked:

How important antigen testing is in HSP in finding causative agent when it occurs in house wife with no obvious cause at home env.?

2 doctor answers2 doctors weighed in
Dr. Michael Fisher
Dermatology 32 years experience
HSP: Some cases of HSP have been linked to vaccinations for typhoid, cholera, yellow fever, measles, or hepatitis b; foods, drugs, chemicals, and insect bites. Some experts also say that HSP is associated with the colder weather of fall and winter.
A 45-year-old member asked:

Is it weird to develop the human leukocyte antigen naturally?

1 doctor answer1 doctor weighed in
Dr. Ed Friedlander
Pathology 44 years experience
Please clarify: This is an entire system of proteins that vary from person to person. Everybody is born with some of them. Your confusion may result from this important subject -- the hla system -- being explained too quickly to you in a classroom.
A 48-year-old member asked:

Chronic hb e antigen +, korean born patient-should i expect to transition to immune clearance phase since i turned 30?

1 doctor answer1 doctor weighed in
Dr. Joel Gallant
Infectious Disease 36 years experience
HBV therapy: You should be on hbv treatment. You may or may not transition to having an hbe antibody, which is the goal. But whether you do or not, you'll still be less likely to progress to chronic liver disease with antiviral therapy.
A 31-year-old member asked:

I want to know what is the difference between an antigen and a microbe (in the immune response)?

1 doctor answer2 doctors weighed in
Dr. John Chiu
Allergy and Immunology 57 years experience
Yes: An antigen is an agent , usually a protein, which can potentially trigger an immune response from the body. In autoimmune diseases, an antigen may be a part of you own body. A microbe is a bacterium or a fungus which may or may not trigger an immune response from your body.

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Last updated Jun 12, 2017
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