"Hepatitis" means inflammation of the liver. Hepatitis can be caused by many things including gallstones, medications, drinking alcohol, obesity and liver infections.
Hepatitis caused by Hepatitis B virus and Hepatitis C virus can be easily transmitted from donors to patients through transfusion. It is possible for a donor to carry a hepatitis virus even though he has never been sick with an inflamed liver, and he feels entirely well at the time of donation.
Hepatitis B and hepatitis C are transmitted between people through sexual contact and blood-to-blood contact, such as occurs when needles are shared during IV drug use. Hepatitis viruses can also be transmitted from mothers to their unborn babies. However, many people who have hepatitis virus infection cannot determine how they became infected. There is a vaccine for the hepatitis B virus.
All blood donations are tested for hepatitis B and hepatitis C with several different tests. But because these tests are not perfect, it is still important for people who may be infected with hepatitis viruses to not donate blood. In some cases, all that is required is a waiting period after some particular event, such as an exposure to a patient with hepatitis, to be sure the person was not infected. In other cases, the likelihood of hepatitis is high enough that the person is not eligible to donate regardless of how much time has gone by. |