HBeAg

HBeAg is a hepatitis B viral marker and an antigen produced by the hepatitis B virus. It is an indicator of active viral replication, meaning the person infected with the virus is more likely to transmit the virus onto others.

Overview

The HBeAg is a serological marker in the blood used to diagnose hepatitis B infection. It is part of the hepatitis B virus and is produced when the virus is actively replicating. The presence of HBeAg in a patient's serum is often associated with higher rates of viral replication and increased infectivity. However, the absence of this antigen does not rule out the presence of the hepatitis B virus, as it may be present in a non-replicating state.

Clinical Significance

In clinical practice, the presence of HBeAg in a patient's blood can be a sign of active infection with the hepatitis B virus. This can be useful in determining the stage of the infection and the potential for transmission. If the HBeAg is positive, it indicates that the virus is replicating and the infected individual has high levels of hepatitis B virus in their blood, therefore they are highly contagious.

Testing

Testing for HBeAg is done using a blood sample. The test is often done in conjunction with other tests for hepatitis B to determine the stage of the infection and the risk of transmission. The test can also be used to monitor the effectiveness of treatment for hepatitis B.

Treatment

The presence of HBeAg in the blood is one factor that can guide treatment decisions for hepatitis B. If the HBeAg is positive and the patient has high levels of the virus in their blood, treatment may be recommended to reduce the risk of liver damage and prevent the spread of the virus.

See Also

• Hepatitis B virus
• Hepatitis B
• Hepatitis
• Antigen
• Serological marker

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