What is anti HBsAg test?
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 and HBsAg?
HBsAg is the antigen used to make hepatitis B vaccine. Hepatitis B surface antibody (anti-HBs): The presence of anti-HBs is generally interpreted as indicating recovery and immunity from hepatitis B virus infection. Anti-HBs also develops in a person who has been successfully vaccinated against hepatitis B.
What is anti-HBs negative?
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 does it mean if the anti-HBs is negative?
A negative test result indicates the virus may not be actively reproducing in the liver. In general, a person is considered very infectious when the test is positive, and less infectious when the test is negative. The loss of e-Antigen can occur naturally or as a result of drug treatment.
What is HBsAg test negative mean?
Normal results are negative or nonreactive, meaning that no hepatitis B surface antigen was found. If your test is positive or reactive, it may mean you are actively infected with HBV. In most cases this means that you will recover within 6 months.
Quali sono gli anticorpi dell’epatite B?
Anti-HBs: negativo; un livello superiore ai 10-12 miU/mL è considerato protettivo. Immunoglobuline M (IgM) contro l’antigene core dell’epatite B (anti-HBc): negativo. Immunoglobuline G (IgG) anti-HBc: negativo. Antigene E dell’epatite B (HBeAg): negativo. Anticorpo E dell’epatite B (anti-HBe): negativo. HBV DNA: Negativo.
Quali sono gli anticorpi anti HBsAg?
Gli Anti-HBc (anticorpi contro l’antigene del core della particella di Dane) compaiono immediatamente dopo la comparsa di anticorpi anti HBsAg (circa 10-14 giorni dall’insorgenza della epatite B). Il loro titolo aumenta rapidamente nel tempo e persiste anche dopo la scomparsa degli anticorpi anti HBsAg.
Qual è la cura per l’epatite B?
Al momento attuale non esiste alcuna cura per l’epatite B pertanto il vaccino rappresenta un’unica arma di prevenzione. Gli Anti-HBc (anticorpi contro l’antigene del core della particella di Dane) compaiono immediatamente dopo la comparsa di anticorpi anti HBsAg (circa 10-14 giorni dall’insorgenza della epatite B).
Quali sono gli intervalli di riferimento contro l’epatite B?
Immunoglobuline M (IgM) contro l’antigene core dell’epatite B (anti-HBc): negativo. (Attenzione, gli intervalli di riferimento possono differire da un laboratorio all’altro, fare quindi riferimento a quelli presenti sul referto in caso di esami del sangue ed urina.)