How ENGERIX - B works: ENGERIX - B is a vaccine used to prevent hepatitis B disease. This vaccine can also protect against hepatitis D, as hepatitis D does not occur in the absence of hepatitis B infection. ENGERIX B contains a small amount of the ‘outer coating’ of the hepatitis B virus. This ‘outer coating’ is not infectious and cannot make you ill.
- When you/your child are given the vaccine it will trigger the body’s immune system to prepare itself to protect against these viruses in the future.
- ENGERIX B will not protect you/your child if you have already caught the hepatitis B virus. ENGERIX B can only help to protect you or your child against infection with hepatitis B virus.
What hepatitis B is: Hepatitis B is an infectious illness of the liver caused by a virus. Some people have the hepatitis B virus in their body but cannot get rid of it. They can still infect other people and are known as carriers. The disease is spread by the virus entering the body following contact with body fluids, most often blood, from an infected person. If the mother is a carrier of the virus, she can pass the virus to her baby at birth. It is also possible to catch the virus from a carrier through, for example, unprotected sex, shared injection needles or treatment with medical equipment which has not been properly sterilised. The main signs of the illness include headache, fever, sickness and jaundice (yellowing of the skin and eyes) but in about three out of 10 patients there are no signs of illness.
Carriers of hepatitis B: In those infected with hepatitis B one out of 10 adults and up to nine out of 10 babies will become carriers of the virus and are likely to go on to develop serious liver damage and in some cases cancer of the liver.