Overview
Hepatitis B is a viral infection affecting the liver. It can be transmitted sexually, through blood or from mother to child. Vaccination is highly effective prevention.
Causes and transmission
- Transmitted through blood, sexual contact and mother-to-child transmission.
- Sharing needles or exposure to infected blood also poses risk.
How it is assessed
- Blood tests detect hepatitis B surface antigen and antibodies.
- Further tests assess chronic infection and liver status.
Management considerations
- Monitoring and antiviral treatment may be needed for chronic infection.
- Vaccination protects those not yet infected.
Prevention
- Hepatitis B vaccination is recommended for eligible people.
- Avoid sharing needles and practice safer sex.
Key points
- Can be sexually transmitted
- Vaccination prevents infection
- May become chronic
- Testing guides management
When to seek care
- Routine STI screening
- Partner diagnosis
- Vaccination questions