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What is Epidemiological markers of Hepatitis - B is and explain in detail?
(HBsAg) (177- Park 19th) (188-Park 20th) (563-Chakraborthy-Micro 2nd)HBsAg. Types are useful markers of epidemiology. These are eight antigenic types of HBs Ag* HBsAg - appearance of HBs Ag is the First evidence of infection, appearing before biochemical evidence of liver disease and persists throughout the clinical illness* Anti HBs Ag - signals recovery from HBV infection, noninfectivity and immunity* HBeAg - indicates viral replication and infectivity