07-08-2011, 08:10 AM
07-08-2011, 08:13 AM
and plasma duration of these markers?
07-09-2011, 07:13 AM
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
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
07-09-2011, 07:22 AM
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
4- and no IGg HBcAb ( which stays for a while in recovered HB B patient)
Thanks alot though
07-09-2011, 08:03 AM
@Raif
3.the best tool for diagnosis of an acute HBV infection during the window is the presence of anti-HBc IgM.
3.the best tool for diagnosis of an acute HBV infection during the window is the presence of anti-HBc IgM.