What is hepatitis B?
Hepatitis B is a viral disease that attacks the liver and may cause jaundice (yellow skin and eyes). In most people the virus clears up within 6 months and they become immune. But some people (about one in ten of those who get hepatitis B as an adult) remain infectious and may go on to develop cirrhosis or cancer of the liver over a period of years. Follow up is important to detect early changes and treat when necessary. Hepatitis B is preventable by using a safe and effective vaccine.
How do people get hepatitis B?
Hepatitis B is caused by a virus which has been found in many body fluids, e.g. sweat, tears, saliva, semen and vaginal secretions. Infected blood is the most common way that the virus is spread from one person infected with hepatitis B to another. For hepatitis B to spread from one person to another there must be contact between infected body fluids and cuts or broken skin or mucous membranes.
Examples of how hepatitis B can be spread include:
During sex with an infected partner.
From an infected mother to her newborn baby during delivery.
Users of injected drugs can infect others through sharing needles.
By sharing contaminated needles or other drug injecting equipment.
Through a blood transfusion in a country where blood is not tested for hepatitis B virus. All blood in the Ireland is tested.
If you have had other types of hepatitis, you can still get hepatitis B.
Who should get hepatitis B vaccine?
Hepatitis B vaccine is given to all babies as part of the 6 in 1 vaccine that is given at 2, 4 and 6 months of age.
Vaccination is also recommended for people at risk of infection. This includes:
- babies born to infected mothers,
- intravenous drug users,
- household contacts and sexual partners of infected people,
- people who change sexual partners,
- men who have sex with men,
- individuals at high risk due to medical conditions,
- health care professionals
- Gardaí and Rescue Service personnel, prison staff and employees of security companies
- people with a learning disability who attend an institution families adopting or fostering children from countries
- where hepatitis B is very common
- people travelling to parts of the world where hepatitis B is very common.
Who should not get hepatitis b vaccine?
Very rarely someone may have a very severe life threatening reaction (anaphylaxis) to one or more of the contents of the vaccine. They should not receive hepatitis B vaccine.
https://www.hse.ie/eng/health/immunisation/pubinfo/adult/hepb/