HBV.....Qs - maryam2009

[ArchivalUser]

1.Carrier marker?
2.Recovery marker?
3.Window period marker?
4.vaccine marker?
5.Infected marker?

[ArchivalUser]

and plasma duration of these markers?

[ArchivalUser]

1.presence of HBsAg in serum for six months or longer after recognition....

2.Anti-HBs Ag IgG /or Anti-HBc IgG

3-IgM Anti-HBc when HBs Ag has been cleared and Anti-HBs is not yet detected.

(IgM HBcAb indicates recent disease ,and IgG HBcAb sinifies chronic disease)

4.Anti-HBsAg and no HBs Ag

5.HBe Ag detectable shortly after the apperance of HBs Ag and indicates viral replication and infectivity

Anti-HBe..marker suggests the cessation of active viral application and low infectivity

[ArchivalUser]

3- window period apears after almost 2 months so it is mostly IgG HBcAb
4- and no IGg HBcAb ( which stays for a while in recovered HB B patient)
Thanks alot though

[ArchivalUser]

@Raif

3.the best tool for diagnosis of an acute HBV infection during the window is the presence of anti-HBc IgM.